Microscopebasics 1
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The document provides instructions for using a microscope and discusses microscope parts. It includes: 1) An explanation of the main microscope parts including the stage, objectives, ocular lens, light source, and diaphragm. 2) Directions for using different objectives and focusing techniques depending on the magnification level. Higher powers require use of the fine adjustment knob. 3) Safety tips like always using two hands and never using coarse focus with high power objectives to avoid breaking slides.
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2. Explaining that total magnification is calculated by multiplying the objective and eyepiece magnifications.
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2) Explaining how to calculate magnification by multiplying the objective and ocular lens powers.
3) Noting that higher magnifications provide better detail but a smaller field of view.
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Lesson Outline:
1. History of Microscope Timeline
2. Common Types of Microscopes
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The document provides instructions for students to complete six stations exploring the use of microscopes. Station 1 involves identifying mystery photos under microscopes. Station 2 involves creating a simple water lens and comparing it to a hand lens. Station 3 describes how to view slides under different microscope magnifications. Station 4 gives instructions for viewing pond water samples under a microscope. Station 5 involves vocabulary and microscope part identification activities. Station 6 directs students to online microscope activities and quizzes.
Animal photography
1) Photography wildlife requires patience and careful planning to capture animals in their natural environment.
2) Photographers should use camouflage, sit still for long periods, understand animal behaviors, and wait for ideal lighting conditions.
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1) The document provides instructions for an activity where students prepare and observe onion cell slides under a light microscope.
2) Students will peel onion skin, place a small piece on a microscope slide with iodine, and view the cells under low and high magnification.
3) Under low power, students should see cells arranged like bricks; under high power, they may identify structures like the nucleus and cell membrane.
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1. The document provides instructions for students to complete a lab using a microscope to view cheek cells. It includes questions about microscope use and safety as well as step-by-step directions for preparing a wet mount slide of cheek cells to view under the microscope.
2. Students are asked to make a prediction about what their cheek cells will look like before viewing them under the microscope. They then follow directions to prepare and view their slide in order to analyze and draw their observed cheek cells.
3. The purpose is for students to learn proper microscope technique and safely view their own cheek cells under magnification.
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1 Biol 1009 Lab Manual NOTE You must complete at .docx
1
Biol 1009 Lab Manual
NOTE: You must complete at least 7 out of 8 labs to pass this course.
The labs are not optional.
Contents
Lab Exercise
Page
1 Use of the Microscope
3
2 Enzyme Activity and Digestion of Carbohydrates and Proteins 13
3 Fermentation, Photosynthesis, and Respiration 19
4 The Structure of a Flower
28
5 Growth and Trophic Responses 31
6 Pedigree Tasting
39
7 Morphogenesis in Insects 44
8 The Ecological Community Structure 51
2
3
Lab Exercise 1: Use of the Microscope
As part of the assignment for this lesson, complete the following lab exercise.
Read through all of the lab exercise before you begin so that you’ll know what
you’re expected to do, what equipment to gather, and the questions you’ll need to
answer.
Write down your answers to the questions as you do the work. These are the
questions you will answer in your lab report. Go to the Assignments tool on the
course Web site to download the worksheet on which to enter your answers.
Timing note: A few hours, but you will need to arrange an appointment in advance.
NOTE: Most students use the microscope that is set up on the U of M campus (see
below). To avoid scheduling problems using this microscope, you do not have to
complete this lab until the end of week 3. However, sometimes a lot of students wait
until the end of week 3 to do this lab, so it’s best to schedule your microscope
appointment early (see below).
Arranging to Use a Microscope
If you live near the University of Minnesota, you may come to the St. Paul campus
and use a microscope in the College of Biological Sciences instructional
laboratories. To be sure a microscope is available for your use, please make an
appointment by contacting Sandy Mand at [email protected] or call 6126262821.
The preferred day and time for appointments is Friday, 9 a.m.–5 p.m., but other
days and times can usually be arranged. Also be sure to call this number if you
need to cancel your appointment.
If you do not live near campus, contact a local grade school, high school, college, or
laboratory to see if you may use one of their microscopes. Try to find some time that is
convenient to both you and the lending institution. Many institutions will be gracious
about letting you use their equipment on their premises.
It will take you approximately three hours to complete this lab exercise.
4
mailto:[email protected]
Objectives
In this exercise you will learn about the use and care of the compound light
microscope. You will use it to examine plant and animal materials, prepare your own
temporary slides, and make approximate measurements of viewed materials.
Supplies
If possible, borrow the following equipment:
● compound light microscope with scanning, low, and highpower objectives
● slide with three different colors of thread*
● slide of plant tissue*
● slide of anima.
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Microscope basics
The document provides instructions for using a basic microscope, including identifying the main parts of the microscope and how to calculate magnification power. It describes how to view slides under different objective lenses and make a wet mount slide by placing a coverslip over a drop of water on a slide. The final sentences remind the reader to be careful when using the highest power objective and to turn off the microscope after use.
Microscope Basics Powerpoint
The document provides instructions for using a basic microscope, including identifying the main parts of the microscope and how to calculate magnification power. It describes how to view slides under different objective lenses and make a wet mount slide by placing a coverslip over a drop of water on a slide. The final sentences remind the reader to be careful when using the highest power objective and to turn off the microscope after use.
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This document provides instructions for using a compound light microscope. It begins by explaining the key parts of the microscope - the objective lenses, ocular lens, stage, etc. and their functions. The objectives are to learn how to use the microscope properly, calculate magnification, make wet mount slides, and view different specimens. The procedure walks through preparing wet mounts, focusing on specimens using low and high power objectives, and making observations of letters, hairs, and other small objects. It emphasizes best practices for handling the microscope carefully and using the correct adjustments at each magnification.
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The document describes the main parts of a microscope and their functions. It includes labels for the eye piece, objectives, stage, adjustments, light source, and other basic components. When using the microscope, slides are placed on the stage and the user looks through the eye piece while adjusting the objectives and fine adjustment to focus on the sample.
Microscope Basics
This document provides instructions for using a microscope. It describes the main parts of a microscope including the body tube, nosepiece, objectives, stage clips, light, ocular lens, arm, stage, coarse adjustment, fine adjustment, and base. It explains how to calculate magnification by multiplying the objective and ocular powers. Low, medium, and high objective powers provide different levels of magnification and detail visible. Directions are given for using objectives to view slides, being careful with the highest power, and making wet mount slides under the microscope.
Microscope review
This document provides instructions for using a compound light microscope. It explains how to calculate total magnification by multiplying the eyepiece magnification by the objective lens magnification. It identifies the main parts of the microscope and their functions. Guidelines are provided for handling microscopy specimens, focusing with different objective lenses, and creating wet mount slides. The key points are how to calculate magnification, identify microscope parts, and follow proper procedures for focusing and specimen preparation.
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The document describes the parts and functions of a light microscope. It explains that a microscope is used to magnify cells and other small objects so they can be studied in detail. The key parts of a microscope are the eyepiece, objective lenses, stage, mirror, stand, and focus control. The eyepiece magnifies the image for viewing, the objective lenses provide additional magnification, and the focus control is used to provide a clear picture.
Microscope basics
The document provides instructions for using a basic microscope, including:
1) Identifying the main microscope parts such as the body tube, objectives, stage, and ocular lens.
2) Explaining how to calculate magnification by multiplying the objective and ocular lens powers.
3) Noting that higher magnifications provide better detail but a smaller field of view.
4) Guiding the reader on how to properly use the coarse and fine adjustments, view slides under different objectives, and set up a wet mount slide.
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The document summarizes the main parts of a microscope and how they function. It describes the arm, stage, body tube, coarse and fine adjustments, eyepiece, objective lenses of different magnifications, illuminator, and diaphragm. It also provides an example of calculating total magnification and outlines steps for a lab procedure using a microscope to observe a letter cut out from newspaper at different magnifications.
Depth of Field 2012
The document discusses depth of field, which is the area of acceptable sharp focus in an image. It can be shallow, meaning a small area is in focus close to the subject, which is achieved with an open aperture between f/1.7 and f/2.8. Or it can be extensive, with a larger portion of the image in focus, which is achieved by setting the aperture to f/16 or f/22. The document provides examples of photographs with shallow and extensive depth of field and instructs students to do an assignment creating a still life composition with objects placed on an open book at varying distances, using bracketing to capture different depths of field.
Preparing a cheek cell slide
The document provides instructions for preparing onion cell and cheek cell slides under a microscope. To prepare an onion cell slide, a thin layer of onion is placed on a microscope slide and stained with iodine solution before adding a coverslip. For a cheek cell slide, cells are collected from the inside of the mouth using a cotton swab, smeared onto a slide, and stained with methylene blue solution before viewing. Both staining methods make cell features more visible under the microscope.
Chapter 2 section 2 (2011)
This document discusses the history and development of microscopy and the cell theory. It begins by describing early microscopes and the scientists who first observed cells. It then explains the different types of lenses used in microscopes and the various microscope types, including compound light microscopes and electron microscopes. Finally, it outlines the cell theory proposed by early biologists that all living things are made of cells, cells are the basic unit of life, and cells come only from preexisting cells.
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The document discusses different types of light microscopes, including their parts, advantages, and uses. A bright field microscope has a simple setup and allows viewing live cells but is useless for some living specimens. A dark field microscope provides high quality images of raised features and is used for live biological samples. A phase contrast microscope does not require staining and allows examination of living cells. A fluorescent microscope detects cell structures and molecules and is used for living cells stained with fluorescent dyes.
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This lab document outlines procedures for observing plant and animal cells under a microscope. Students will examine onion and cheek cells stained with iodine. For the onion cell lab, students will slice an onion, apply iodine stain, and observe the cells under low, medium, and high powers of a microscope, drawing and labeling their observations. For the cheek cell lab, students will rub the inside of their cheek with a toothpick, stir the toothpick in iodine stain, observe the stained cheek cells under the microscope, and draw and label their observations. Students will then analyze their results and write a conclusion describing what was done in the lab and what was discovered about plant and animal cells.
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Unit 3, Lesson 3.1 - Microscopes
Lesson Outline:
1. History of Microscope Timeline
2. Common Types of Microscopes
Micro All Stations Cards
The document provides instructions for students to complete six stations exploring the use of microscopes. Station 1 involves identifying mystery photos under microscopes. Station 2 involves creating a simple water lens and comparing it to a hand lens. Station 3 describes how to view slides under different microscope magnifications. Station 4 gives instructions for viewing pond water samples under a microscope. Station 5 involves vocabulary and microscope part identification activities. Station 6 directs students to online microscope activities and quizzes.
Animal photography
1) Photography wildlife requires patience and careful planning to capture animals in their natural environment.
2) Photographers should use camouflage, sit still for long periods, understand animal behaviors, and wait for ideal lighting conditions.
3) Techniques like getting low to the subject's level, leaving space around the subject, focusing on interaction, and finding a new viewpoint can help take compelling photos of wildlife.
preparing-onion-cell-slides-lesson-element-teacher-instructions
1) The document provides instructions for an activity where students prepare and observe onion cell slides under a light microscope.
2) Students will peel onion skin, place a small piece on a microscope slide with iodine, and view the cells under low and high magnification.
3) Under low power, students should see cells arranged like bricks; under high power, they may identify structures like the nucleus and cell membrane.
Macro photography
Macro photography involves taking photos of small objects and details not visible to the naked eye. It has expanded from just capturing grains to anything not seen with natural vision. The document discusses macro photography and explores choices for a macro exhibit, selecting two photos that show wasps using their environment and another species surviving in the wild to highlight the unseen world macro photography reveals.
Microscope Lab
1. The document provides instructions for students to complete a lab using a microscope to view cheek cells. It includes questions about microscope use and safety as well as step-by-step directions for preparing a wet mount slide of cheek cells to view under the microscope.
2. Students are asked to make a prediction about what their cheek cells will look like before viewing them under the microscope. They then follow directions to prepare and view their slide in order to analyze and draw their observed cheek cells.
3. The purpose is for students to learn proper microscope technique and safely view their own cheek cells under magnification.
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Microscope Basics Powerpoint
The document provides instructions for using a basic microscope, including identifying the main parts of the microscope and how to calculate magnification power. It describes how to view slides under different objective lenses and make a wet mount slide by placing a coverslip over a drop of water on a slide. The final sentences remind the reader to be careful when using the highest power objective and to turn off the microscope after use.
1 Biol 1009 Lab Manual NOTE You must complete at .docx
1
Biol 1009 Lab Manual
NOTE: You must complete at least 7 out of 8 labs to pass this course.
The labs are not optional.
Contents
Lab Exercise
Page
1 Use of the Microscope
3
2 Enzyme Activity and Digestion of Carbohydrates and Proteins 13
3 Fermentation, Photosynthesis, and Respiration 19
4 The Structure of a Flower
28
5 Growth and Trophic Responses 31
6 Pedigree Tasting
39
7 Morphogenesis in Insects 44
8 The Ecological Community Structure 51
2
3
Lab Exercise 1: Use of the Microscope
As part of the assignment for this lesson, complete the following lab exercise.
Read through all of the lab exercise before you begin so that you’ll know what
you’re expected to do, what equipment to gather, and the questions you’ll need to
answer.
Write down your answers to the questions as you do the work. These are the
questions you will answer in your lab report. Go to the Assignments tool on the
course Web site to download the worksheet on which to enter your answers.
Timing note: A few hours, but you will need to arrange an appointment in advance.
NOTE: Most students use the microscope that is set up on the U of M campus (see
below). To avoid scheduling problems using this microscope, you do not have to
complete this lab until the end of week 3. However, sometimes a lot of students wait
until the end of week 3 to do this lab, so it’s best to schedule your microscope
appointment early (see below).
Arranging to Use a Microscope
If you live near the University of Minnesota, you may come to the St. Paul campus
and use a microscope in the College of Biological Sciences instructional
laboratories. To be sure a microscope is available for your use, please make an
appointment by contacting Sandy Mand at [email protected] or call 6126262821.
The preferred day and time for appointments is Friday, 9 a.m.–5 p.m., but other
days and times can usually be arranged. Also be sure to call this number if you
need to cancel your appointment.
If you do not live near campus, contact a local grade school, high school, college, or
laboratory to see if you may use one of their microscopes. Try to find some time that is
convenient to both you and the lending institution. Many institutions will be gracious
about letting you use their equipment on their premises.
It will take you approximately three hours to complete this lab exercise.
4
mailto:[email protected]
Objectives
In this exercise you will learn about the use and care of the compound light
microscope. You will use it to examine plant and animal materials, prepare your own
temporary slides, and make approximate measurements of viewed materials.
Supplies
If possible, borrow the following equipment:
● compound light microscope with scanning, low, and highpower objectives
● slide with three different colors of thread*
● slide of plant tissue*
● slide of anima.
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Microscopes are used to magnify objects too small to see with the naked eye. They have various parts including lenses, a stage to hold samples, and adjustments to focus images. There are three main types - simple, compound, and electron - with increasing magnification abilities. Compound microscopes use two lens systems to magnify up to 200x, while electron microscopes can reach 300,000x magnification using electron beams rather than lenses. Microscope users must understand parts, focusing techniques, calculating magnification, and properly preparing and observing slides.
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Microscopes are tools that magnify objects too small to see with the naked eye. They have various parts including objectives, an eyepiece, stage, and light source. There are three main types - simple, compound, and electron microscopes. Compound microscopes use two sets of lenses to magnify objects up to 200 times, while electron microscopes can magnify objects up to 300,000 times using electrons rather than lenses. Microscopes are used by scientists to study living and non-living tiny specimens.
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2. fine
3. light
4. piece of paper towel
5. diaphragm
6. base and arm
7. revolving nosepiece
8. scanning
9. 500x (10x x 50x)
10. scanning electron microscope
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This document provides instructions for calculating cell magnification using a microscope. It explains that magnification is the number of times an image appears larger than the actual object. The document teaches how to calculate magnification using the formula: diameter of image = diameter of object x magnification. It provides examples calculating magnification of red blood cells and plant cells. It also reviews the key parts of a microscope and safe use of microscopes to view specimens.
Microscope Basics
The document provides instructions for using a basic light microscope, including identifying the main parts of the microscope and how to properly use them. It explains how to calculate magnification power by multiplying the objective and eyepiece powers. It provides step-by-step instructions for viewing slides under the microscope, including how to focus and switch between objectives. It also gives directions for making a wet mount microscopy slide.
Q2_living things and their environment.pptx
The document provides information about the levels of biological organization from cells to the biosphere:
- Cells are the basic unit of life and can be either unicellular or multicellular. Tissues are made of cells that work together, while organs are made of tissues. Organ systems consist of multiple cooperating organs.
- Organisms can be either unicellular or multicellular. Populations are groups of the same species in an area. Communities include all species in an area. Ecosystems include all communities and physical components in an area.
- The biosphere is the highest level and includes all ecosystems on Earth. Biology studies living things across these levels of organization from cells to the entire planet.
microscope
The document provides information on the proper use and care of light microscopes. It details the parts of the microscope like the objective lenses, eyepiece, stage, and focus knobs. Guidelines are given for carrying, focusing, and storing the microscope safely. Procedures describe how to focus on specimens starting with the scanning objective and progressing to higher magnifications. Troubleshooting tips address common microscope issues.
Microscope ...chanderhash..asu2017010100041
This document provides information about microscopes and how to use them. It discusses the history of the microscope and key inventors. It then describes the main parts of a microscope and their functions. The document explains how to properly focus a microscope, calculate magnification, and make wet mount slides for viewing specimens. It emphasizes handling microscopes carefully and recording observations accurately.
1.0 - The Light Miscroscope (2).pptx0ppt
Here are the key points about types of light microscopes:
- Compound light microscopes are the most common type found in classrooms and labs. They use a system of multiple lenses (objective and eyepiece lenses) to magnify specimens. The magnification is calculated by multiplying the objective and eyepiece powers.
- Stereo microscopes are useful for viewing three-dimensional specimens. They use two eyepieces and two separate light paths to provide a stereoscopic view. This allows depth perception. They are well-suited to tasks like examining insects or small parts.
- Inverted or upside-down microscopes have their objectives below the stage to allow viewing live cell cultures or other transparent specimens from below
1.0 - The Light Miscroscope.ppt microscopy
Here are the key points about types of light microscopes:
- Compound light microscopes are the most common type found in classrooms and labs. They use a system of multiple lenses (objective and eyepiece lenses) to magnify specimens. The magnification is calculated by multiplying the objective and eyepiece powers.
- Stereo microscopes are used to view three-dimensional specimens. They have two separate optical paths to provide binocular vision. This allows depth perception which is useful for tasks like dissection.
- Inverted or upside-down microscopes have their objectives below the stage to allow viewing live cell cultures or other transparent samples from below. This is important for studies of living cells and organisms without disturbing the
Second (2nd) Quarter Topics in Science 7
This is a Unified presentation for all the topics in the second quarter for Science 7. If you want to avail the powerpoint please contact me on my facebook account: Jady Claire Jackson Lullegao
Microscopes Applied
The document provides instructions for using a microscope to view an onion cell. It describes preparing a slide with an onion epidermis sample and iodine staining. It outlines the steps to focus the microscope and view the sample under low and high power. Labeling guidelines are provided for drawing a scientific diagram of the onion cell view, along with background on microscope parts and the goals of analyzing cell structures.
The microscope
To summarize:
- The document discusses microscopes and how they allow viewing of microscopic organisms and structures. It describes the basic parts of the light microscope and their functions.
- The history of microscope development is covered from early simple magnifying lenses to the compound microscope. Key figures like Anton van Leeuwenhoek who significantly improved lens quality are mentioned.
- Instructions are provided on how to properly use a light microscope, including focusing and calculating total magnification. Methods for preparing and viewing samples like onion cells are also outlined.
Microscope.pptx
The document provides a history of the microscope and descriptions of different microscope types. It discusses key developments like the first compound microscope in 1590, Robert Hooke using one in 1655 to observe cell structures, and Antonie van Leeuwenhoek discovering single-celled organisms. It also outlines the compound light microscope most widely used today, and more powerful electron microscopes like the transmission and scanning electron microscopes that can magnify up to 250,000x and 100,000x respectively. The document provides guidelines for microscope use, parts identification, focusing, drawing specimens, cleanup, and troubleshooting.
MICROSCOPY1.pptx
The document provides information about the history and types of microscopes. It discusses key developments in the microscope, including the first compound microscope in 1590, Robert Hooke using one to observe cells in 1655, and Antonie van Leeuwenhoek discovering single-celled organisms. It also describes the two main types of microscopes - compound light microscopes, which are most widely used, and electron microscopes, which can achieve much higher magnifications. The document concludes with guidelines, vocabulary and procedures for safely and effectively using a light microscope.
Microscope.pptx
The document provides a history of the microscope and descriptions of different microscope types. It discusses key developments like the first compound microscope in 1590, Robert Hooke using one in 1655 to observe cell structures, and Antonie van Leeuwenhoek discovering single-celled organisms. It also outlines the compound light microscope most widely used today, and more powerful electron microscopes like the transmission and scanning electron microscopes that can magnify up to 250,000x and 100,000x respectively. The document provides guidelines for microscope use, parts identification, focusing, drawing specimens, cleanup, and troubleshooting.
Microscopy 1
The document provides information about microscopy, including:
1. Defining key microscope terms like magnification, resolving power, contrast, and depth of field.
2. Describing the parts and proper use of compound light microscopes, including objectives, oculars, stages, condensers, and focusing.
3. Explaining how microscope images are inverted and techniques like using different magnifications, iris diaphragms, and immersion oil.
SCIENCE-7-QUARTER-2-LAS (1).pdf
This document provides instructions on how to properly use a compound microscope. It begins by identifying the learning objectives as focusing specimens using the compound microscope. It then lists the steps to focus specimens, which include placing a slide on the stage, using the course and fine adjustment knobs to focus with the low and high power objectives, and adjusting the diaphragm and mirror for light. The document emphasizes carrying the microscope carefully and not touching the lenses, as well as following specific steps when examining specimens.
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1 Biol 1009 Lab Manual NOTE You must complete at .docx
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Symbiosis
The document describes a mutualistic relationship between monkeys and deer in India. During the dry season, messy-eating monkeys eat fruit in trees and drop some on the ground below. The deer rely on this fallen fruit for food when grass is scarce. In return, the deer act as an alarm system for the monkeys by using their good eyesight, hearing, and sense of smell to detect predators and warn the monkeys. This relationship benefits both species through food sharing and protection.
Characteristics of life_candle_activity
The document discusses the characteristics of life. It begins by defining biology as the study of life by breaking down the prefix "bio" and suffix "ology". It then asks what the characteristics of life are to distinguish living from non-living things. It lists the 5 main characteristics of life as: 1) sensing and responding to change, 2) reproducing, 3) using energy, 4) growing and developing, and 5) being made of one or more cells. As an example, it asks if a candle flame is living by explaining these characteristics.
Asexual vs. Sexual Reproduction
There are two main types of reproduction: asexual reproduction which involves one parent and results in offspring that are genetically identical; and sexual reproduction which involves two parents and increases genetic diversity in offspring through meiosis and fertilization. Some common asexual reproduction methods include binary fission in prokaryotes, fragmentation and regeneration in fungi and plants, and budding in yeasts and hydras. Sexual reproduction, the primary method for most complex organisms, requires pollination to deliver pollen for fertilization of flowering plants.
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Glogster is an online tool that allows users to create interactive posters called Glogs. It can be used for educational purposes to display information on various topics including responding to literature, recounting historical events, sharing research, and explaining problem solving techniques. The document provides step-by-step instructions on how to get started with Glogster, including registering for an account, customizing the background and adding text boxes, graphics, images, videos, and saving the Glog.
Genetics review and problems 2a
This document provides an overview of genetics concepts including traits, heredity, alleles, dominance, recessiveness, genotypes, phenotypes, codominance, and Punnett squares. Key points covered include:
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- Genetics is the study of heredity, or the passing of traits from parents to offspring
- Alleles are different forms of genes that determine trait inheritance
- Dominant alleles always show up in the phenotype while recessive alleles are hidden if a dominant allele is present
- Genotype is an organism's genetic makeup, while phenotype is its visible traits
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Genetics review and problems
This document provides an overview of genetics concepts including:
1) Traits are physical characteristics studied in genetics, while heredity is the passing of traits from parents to offspring.
2) Genes control traits and come in different forms called alleles which are received from each parent and determine trait inheritance.
3) Dominant alleles will always show in an organism while recessive alleles are hidden by dominant alleles.
4) Genotype refers to an organism's genetic makeup of alleles, while phenotype describes visible traits.
Human body systems review
The document summarizes the key structures, functions, and interactions of several human body systems:
- The digestive system breaks down food and eliminates waste, interacting with the circulatory system.
- The excretory system filters blood through kidneys and removes waste from the body and digestive system.
- The respiratory system moves oxygen into the body and carbon dioxide out, interacting with the circulatory system.
- The circulatory system pumps blood through vessels to carry nutrients, oxygen, and waste, acting as the "highway system" of the body.
- The nervous system detects information and controls the body's functions through interactions between the brain, spinal cord, and nerves.
- Glands and organs secrete
Levels of organization
There are several levels of organization in living things ranging from the smallest non-living parts like atoms to the largest living things like organisms. Atoms can bond together to form molecules, molecules can join to form macromolecules or organelles, organelles make up cells, cells of the same type join to form tissues, tissues form organs which work together in systems, systems combine to form organisms, organisms interact as populations, populations combine into communities within ecosystems, ecosystems group into biomes, and biomes together makeup the biosphere which encompasses the entire living portion of the planet.
Mitosis 3
Mitosis is the process by which a eukaryotic cell divides its nucleus and chromosomes into two identical daughter cells. It has four main phases: prophase where chromosome pairs are easily seen, metaphase where chromosomes line up in the middle of the cell, anaphase where chromosomes are pulled apart to opposite ends of the cell, and telophase where two new nuclear membranes form and the cell finishes dividing into two separate cells. The document provides descriptions and mnemonics to help remember each phase of mitosis.
Mitosis 2
Cell division, also known as mitosis, is the process by which a eukaryotic cell separates its chromosomes and divides into two identical daughter cells. It occurs in several phases: interphase, prophase, metaphase, anaphase, and telophase. In interphase, the cell grows and chromosomes are duplicated. In prophase, chromosomes condense into visible structures. In metaphase, chromosomes line up in the center of the cell. In anaphase, chromosomes are pulled apart toward opposite sides of the cell. In telophase, the nuclear envelope reforms and the cell divides into two identical daughter cells through cytokinesis.
Respiration
Stomata are openings found on the underside of leaves that allow gas exchange. An omnivore would eat both insects and seeds as part of its diet. Mitochondria are known as the powerhouse of the cell, as they take in glucose and oxygen during respiration and give off carbon dioxide, water, and energy. Respiration breaks down glucose and oxygen at the cellular level to release carbon dioxide, water, and energy. Fermentation is a type of respiration that can occur without oxygen and is used by plants and bacteria to produce compounds like alcohol and vinegar.
Photosynthesis
Plants that live in dry desert climates have several key adaptations for conserving water, including thick waxy leaf coverings, deep roots, and extensive shallow roots. During photosynthesis, chloroplasts in plant cells absorb sunlight and use it to convert carbon dioxide and water into glucose and oxygen through a process that produces food for the plant. Photosynthesis is essential for all life as it provides the oxygen and food on which animals depend.
Animal/Plant cell
There are two main types of prokaryotic cells: Archaea and Bacteria. Eukaryotic cells, which make up the human body, are larger and contain membrane-bound organelles. The document then provides more details about the parts of cells, including their structures (cell membrane, nucleus, cytoplasm, etc.) and their functions (the nucleus acts as the brain, mitochondria produce energy, ribosomes make proteins, etc.). It notes that plant and animal cells contain these same basic parts but may differ in some additional structures like chloroplasts and cell walls.
Cell history
The document summarizes the history and key discoveries related to cells, including:
1) Robert Hooke was the first to observe cells in 1665 when examining a cork sample under his homemade microscope and described the structures as "little boxes".
2) Anton van Leeuwenhoek later observed microorganisms in pond water in 1673 which he called "animalcules", including some of the first observations of bacteria.
3) In the 1830s-1850s, Matthias Schleiden, Theodore Schwann, and Rudolf Virchow established the three main principles of the cell theory - that all organisms are made of cells, the cell is the basic unit of living things, and all cells
Cell History
The document summarizes the history and key discoveries related to cells, including:
1) Robert Hooke was the first to observe cells in 1665 when examining a cork sample under his homemade microscope and described the structures as "little boxes".
2) Anton van Leeuwenhoek later observed microorganisms in pond water in 1673 which he called "animalcules", including some of the first observations of bacteria.
3) In the 1830s-1850s, Matthias Schleiden, Theodore Schwann, and Rudolf Virchow developed the three main principles of the cell theory - that all organisms are made of cells, the cell is the basic unit of living things, and all cells
Eukaryotic vs. Prokaryotic
This document provides information about cells, including:
- All cells must have a cell membrane, cytoplasm, and DNA according to the cell theory.
- Prokaryotic cells like bacteria and archaea lack membrane-bound organelles and nuclei, while eukaryotic cells have these structures.
- Bacteria are the most common prokaryotes and can be spherical, rod-shaped, or spiral; archaea differ from bacteria in their ribosomes and cell structures.
Biomes Climate Data
The document contains 6 climate graphs showing monthly temperature and rainfall data collected from different locations. The graphs show a wide range of temperatures from -27°C to 31.9°C and rainfall amounts ranging from 0 mm to 225 mm. This data suggests the locations span polar, temperate, and tropical biomes. The variety of climates represented makes it difficult to identify any single biome without additional context.
How to create a climate graph
The tundra biome is characterized by low temperatures and average rainfall. Plants found in the tundra include grasses, shrubs, mosses and lichens. Animals include snow geese, musk oxen, wolves and caribou. Permafrost, a layer of soil that remains frozen all year round, is also mentioned. The document then provides instructions for creating a climate graph, including drawing axes, adding months, temperature, rainfall data and completing the graph.
Earth's Biomes
The document discusses different biomes including deserts, grasslands, and forests. It provides details on the key characteristics of each biome such as average temperature, precipitation levels, dominant vegetation, and common animal life. For deserts, the main points are that precipitation is low, evaporation exceeds rainfall, and vegetation is light. Grasslands are defined as having enough rainfall for grass growth and preventing permanent forests. Forests are described as having a variety of plant and tree life that provide habitat for many animal species.
Carbon and nitrogen cycling
Carbon and nitrogen are essential elements that cycle through living organisms and the environment. The carbon cycle involves carbon dioxide being absorbed by plants through photosynthesis and released by animals through respiration. When plants can't absorb excess carbon produced, it builds up in the atmosphere and oceans, potentially causing global warming. The nitrogen cycle involves nitrogen gas in the air being "fixed" by bacteria living in plant root nodules or through lightning, making it usable for organisms. Both cycles involve constant movement of the elements through producers, consumers, decomposers and the environment.
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Microscopebasics 1
- 3. Spooky Cells 1 My composition is white and hard, you can find me in an old graveyard.
- 5. Body Tube Nosepiece Objectives Stage Clips Light Ocular lens (Eyepiece) Arm Stage Coarse Adjustment Fine Adjustment Base Focuses ocular lens Rotates Objective Lenses for Viewing Each has Different Magnification! Hold Slide in Place Where you View the Specimen! Regulates Amount of Light going through Slide! Use for Broad Scanning on Low Power Objectives! Use for Fine Adjustments in High Power Objectives! Diaphragm
- 6. Spooky Cells 2 Some are smooth and others are hairy, Frankenstein's was green and scary!
- 11. Spooky Cell 3 I can make some people scream and squeal, But to Edward Cullen I am a favorite meal.
- 12. What’s my power? To calculate the power of magnification, MULTIPLY the POWER of the Ocular Lens by the POWER of the Objective What is the power of magnification for the Ocular Lens (shown) and the 40x Objective Lens (shown)? Fill Your Calculations AND Your answer on Your Worksheet!!!
- 13. Comparing Powers of Magnification We can see better details with higher the powers of magnification, but we cannot see as much of the image. Which of these images would be viewed at a higher power of magnification?
- 17. Spooky Cell 4 Stretch me and work me to build more bulk. Soon you will look like the incredible hulk!
- 19. How to make a wet-mount slide … 1 – Get a clean slide and coverslip from your teacher. 2 – Place ONE drop of water in the middle of the slide. Don’t use too much or the water will run off the edge and make a mess! 3 – Place the edge of the cover slip on one side of the water drop. You do not need to use the stage clips when viewing wet-mount slides! 5 – Place the slide on the stage and view it first with the red-banded objective. Once you see the image, you can rotate the nosepiece to view the slide with the different objectives. 4 - Slowly lower the cover slip on top of the drop. Cover Slip Lower slowly