This document provides information about plant and animal cell structures and their functions. It begins by discussing the early discoveries of cells and the cell theory. It then describes the key differences between prokaryotic and eukaryotic cells. The main organelles of eukaryotic cells are described, including the nucleus, mitochondria, chloroplasts, cell wall, vacuoles, endoplasmic reticulum, Golgi bodies, lysosomes, and ribosomes. The functions of these organelles are explained, such as the nucleus containing DNA, mitochondria producing energy, and chloroplasts performing photosynthesis. The document highlights that plant and animal cells share many similarities but plant cells also contain a cell wall and chloroplasts.
TOPICS:
• THE CONCEPT OF LIFE
• WHAT QUALIFIES SOMETHING AS “LIVING”?
o MOVEMENT
o SENSITIVITY
o DEATH
o COMPLEXITY
• THEORIES ON THE ORIGIN OF LIFE
o EXTRATERRESTRIAL ORIGIN
o PANSPERMIA
o DIVINE CREATION
o ORIGIN FROM NONLIVING MATTER (PHYSICO-CHEMICAL THEORY)
• FORMATION OF THE FIRST CELL
• EARLY LIFE FORMS
STEM General Biology 1: The Cells
Cell Theory
Cell Structures and Functions
Prokaryotes vs. Eukaryotes
Animal vs. Plant Cells
Cell Modification
Movement of Molecules in Cells
classify organisms using the hierarchical taxonomic system
create mnemonic device on biological taxonomic system
3.discuss the quotation “Where there is unity there is victory”-Publilius Syrus
TOPICS:
• THE CONCEPT OF LIFE
• WHAT QUALIFIES SOMETHING AS “LIVING”?
o MOVEMENT
o SENSITIVITY
o DEATH
o COMPLEXITY
• THEORIES ON THE ORIGIN OF LIFE
o EXTRATERRESTRIAL ORIGIN
o PANSPERMIA
o DIVINE CREATION
o ORIGIN FROM NONLIVING MATTER (PHYSICO-CHEMICAL THEORY)
• FORMATION OF THE FIRST CELL
• EARLY LIFE FORMS
STEM General Biology 1: The Cells
Cell Theory
Cell Structures and Functions
Prokaryotes vs. Eukaryotes
Animal vs. Plant Cells
Cell Modification
Movement of Molecules in Cells
classify organisms using the hierarchical taxonomic system
create mnemonic device on biological taxonomic system
3.discuss the quotation “Where there is unity there is victory”-Publilius Syrus
as a partial requirement for one of my subject for this semester
I would like you to view my presentation and comment as well
I will be very glad if you find my presentation interesting, or comment on how I can improve my craft, THANK YOU :)
3 ESO- Biology bilingual education.
IES Pedro de Luna.
Cell.
Microscope.
Types of cells: Eukaryotic and Procaryotic. Animal and Plant cells.
The organelles ofthe cell and their functions.
www.biodeluna.wordpress.com
In the realm of biology, understanding the cell is akin to unlocking the secrets of life itself. The Class 11 Biology curriculum introduces students to the fascinating world of cells, encapsulating the intricate processes that sustain living organisms. The chapter aptly titled "Cell: The Unit of Life" serves as a foundational cornerstone, laying the groundwork for a comprehensive understanding of biology and the complexity of life.
Eukaryotic cells contain membrane-bound organelles, including a nucleus. Eukaryotes can be single-celled or multi-celled, such as you, me, plants, fungi, and insects. Bacteria are an example of prokaryotes. Prokaryotic cells do not contain a nucleus or any other membrane-bound organelle.
Observation of Io’s Resurfacing via Plume Deposition Using Ground-based Adapt...Sérgio Sacani
Since volcanic activity was first discovered on Io from Voyager images in 1979, changes
on Io’s surface have been monitored from both spacecraft and ground-based telescopes.
Here, we present the highest spatial resolution images of Io ever obtained from a groundbased telescope. These images, acquired by the SHARK-VIS instrument on the Large
Binocular Telescope, show evidence of a major resurfacing event on Io’s trailing hemisphere. When compared to the most recent spacecraft images, the SHARK-VIS images
show that a plume deposit from a powerful eruption at Pillan Patera has covered part
of the long-lived Pele plume deposit. Although this type of resurfacing event may be common on Io, few have been detected due to the rarity of spacecraft visits and the previously low spatial resolution available from Earth-based telescopes. The SHARK-VIS instrument ushers in a new era of high resolution imaging of Io’s surface using adaptive
optics at visible wavelengths.
This pdf is about the Schizophrenia.
For more details visit on YouTube; @SELF-EXPLANATORY;
https://www.youtube.com/channel/UCAiarMZDNhe1A3Rnpr_WkzA/videos
Thanks...!
Richard's entangled aventures in wonderlandRichard Gill
Since the loophole-free Bell experiments of 2020 and the Nobel prizes in physics of 2022, critics of Bell's work have retreated to the fortress of super-determinism. Now, super-determinism is a derogatory word - it just means "determinism". Palmer, Hance and Hossenfelder argue that quantum mechanics and determinism are not incompatible, using a sophisticated mathematical construction based on a subtle thinning of allowed states and measurements in quantum mechanics, such that what is left appears to make Bell's argument fail, without altering the empirical predictions of quantum mechanics. I think however that it is a smoke screen, and the slogan "lost in math" comes to my mind. I will discuss some other recent disproofs of Bell's theorem using the language of causality based on causal graphs. Causal thinking is also central to law and justice. I will mention surprising connections to my work on serial killer nurse cases, in particular the Dutch case of Lucia de Berk and the current UK case of Lucy Letby.
What is greenhouse gasses and how many gasses are there to affect the Earth.moosaasad1975
What are greenhouse gasses how they affect the earth and its environment what is the future of the environment and earth how the weather and the climate effects.
This presentation explores a brief idea about the structural and functional attributes of nucleotides, the structure and function of genetic materials along with the impact of UV rays and pH upon them.
Multi-source connectivity as the driver of solar wind variability in the heli...Sérgio Sacani
The ambient solar wind that flls the heliosphere originates from multiple
sources in the solar corona and is highly structured. It is often described
as high-speed, relatively homogeneous, plasma streams from coronal
holes and slow-speed, highly variable, streams whose source regions are
under debate. A key goal of ESA/NASA’s Solar Orbiter mission is to identify
solar wind sources and understand what drives the complexity seen in the
heliosphere. By combining magnetic feld modelling and spectroscopic
techniques with high-resolution observations and measurements, we show
that the solar wind variability detected in situ by Solar Orbiter in March
2022 is driven by spatio-temporal changes in the magnetic connectivity to
multiple sources in the solar atmosphere. The magnetic feld footpoints
connected to the spacecraft moved from the boundaries of a coronal hole
to one active region (12961) and then across to another region (12957). This
is refected in the in situ measurements, which show the transition from fast
to highly Alfvénic then to slow solar wind that is disrupted by the arrival of
a coronal mass ejection. Our results describe solar wind variability at 0.5 au
but are applicable to near-Earth observatories.
Earliest Galaxies in the JADES Origins Field: Luminosity Function and Cosmic ...Sérgio Sacani
We characterize the earliest galaxy population in the JADES Origins Field (JOF), the deepest
imaging field observed with JWST. We make use of the ancillary Hubble optical images (5 filters
spanning 0.4−0.9µm) and novel JWST images with 14 filters spanning 0.8−5µm, including 7 mediumband filters, and reaching total exposure times of up to 46 hours per filter. We combine all our data
at > 2.3µm to construct an ultradeep image, reaching as deep as ≈ 31.4 AB mag in the stack and
30.3-31.0 AB mag (5σ, r = 0.1” circular aperture) in individual filters. We measure photometric
redshifts and use robust selection criteria to identify a sample of eight galaxy candidates at redshifts
z = 11.5 − 15. These objects show compact half-light radii of R1/2 ∼ 50 − 200pc, stellar masses of
M⋆ ∼ 107−108M⊙, and star-formation rates of SFR ∼ 0.1−1 M⊙ yr−1
. Our search finds no candidates
at 15 < z < 20, placing upper limits at these redshifts. We develop a forward modeling approach to
infer the properties of the evolving luminosity function without binning in redshift or luminosity that
marginalizes over the photometric redshift uncertainty of our candidate galaxies and incorporates the
impact of non-detections. We find a z = 12 luminosity function in good agreement with prior results,
and that the luminosity function normalization and UV luminosity density decline by a factor of ∼ 2.5
from z = 12 to z = 14. We discuss the possible implications of our results in the context of theoretical
models for evolution of the dark matter halo mass function.
2. Robert Hooke discovered the
first cells. Cork Cells were
thought to have been these
cells.
Anton von Leeuwenhoek was
first to observe one celled living
things. Examples of these were
bacteria and parameciums.
3. The Cell Theory
All organisms are composed of one or more cells.
Cells are the smallest living things.
All organisms living today are descendents of an
ancestral cell.
Cells arise only by division of previously existing cells.
The cell theory (proposed independently in 1838
and 1839) is a cornerstone of biology.
Schleiden
Schwann
7. Cytosol
Cytoplasm refers to the jelly-like material with organelles in
it.
If the organelles were removed, the soluble part that would
be left is called the cytosol. It consists mainly of water with
dissolved substances such as amino acids in it.
8. Section 7-2
Figure 7-5 Plant and Animal Cells
Go to
Section:
Animal Cell
Nucleus
Nucleolu
s
Cell Membrane
Cytoplasm
9. Eukaryotic Cell Organelles and
Function
1. Nucleus
Nickname: “The Control Center”
Function: holds the DNA
Parts:
1. Nucleolus: dark spot in the middle of the
nucleus that helps make ribosomes
10. Section 7-2
Figure 7-5 Plant and Animal Cells
Go to
Section:
Animal Cell
Nucleus
Nucleolus Ribosomes
Cell Membrane
Cytoplasm
11. Eukaryotic Cell Organelles and
Function
2. Ribosomes
Function: makes proteins
Found in all cells, prokaryotic and
eukaryotic
12. Eukaryotic Cell Organelles and
Function
3. Endoplasmic Reticulum (ER)
Nickname: “Roads”
Function: The internal delivery system of
the cell
13. Section 7-2
Figure 7-5 Plant and Animal Cells
Go to
Section:
Animal Cell
Nucleus
Nucleolus
Rough
Endoplasmic
Reticulum
Smooth
Endoplasmic
Reticulum
Cell Membrane
Cytoplasm
Ribosomes
14. Endoplasmic Reticulum
2 Types:
1. Rough ER:
Rough appearance because it has
ribosomes
Function: helps make proteins, that’s why it
has ribosomes
1. Smooth ER:
NO ribosomes
Function: makes fats or lipids
15. Section 7-2
Figure 7-5 Plant and Animal Cells
Go to
Section:
Animal Cell
Nucleus
Nucleolus
Rough Endoplasmic
Reticulum
Smooth Endoplasmic
Reticulum
Ribosomes
Golgi Complex
Cell Membrane
Cytoplasm
16. Eukaryotic Cell Organelles and
Function
4. Golgi Complex
Nickname: The shippers
Function: packages, modifies, and
transports materials to different location
inside/outside of the cell
Appearance: stack of pancakes
17. Section 7-2
Figure 7-5 Plant and Animal Cells
Go to
Section:
Animal Cell
Nucleus
Nucleolus
Rough Endoplasmic
Reticulum
Smooth Endoplasmic
Reticulum
Ribosomes
Golgi Bodies
Cell Membrane
Cytoplasm
18. Eukaryotic Cell Organelles and
Function
5. Lysosomes: circular, but bigger than
ribosomes)
Nickname: “Clean-up Crews”
Function: to break down food into
particles the rest of the cell can use and
to destroy old cells
19. Cell suicide (suicide is bad for
cells, but good for us!)
(The lysosome is not found
in plant cells)
21. Eukaryotic Cell Organelles and
Function
6. Mitochondria
Nickname: “The Powerhouse”
Function: Energy formation
Breaks down food to make ATP
ATP: is the major fuel for all cell activities that
require energy
23. Now let’s talk about structures only
found in PLANT Cells!!
24. Section 7-2
Figure 7-5 Plant and Animal Cells
Go to
Section:
Plant Cell
Cell Membrane
Vacuol
e
25. Eukaryotic Cell Organelles and
Function
7. Vacuole (central)
Function: stores water
This is what makes lettuce crisp
When there is no water, the plant wilts
The Central Vacuole Controls Turgor Pressure
27. Section 7-2
Figure 7-5 Plant and Animal Cells
Go to
Section:
Plant Cell
Cell Membrane
Vacuole
Chloroplasts
28. Eukaryotic Cell Organelles and
Function
8. Chloroplasts
Function: traps energy from the sun to
produce food for the plant cell
Green in color because of chlorophyll,
which is a green pigment
30. Section 7-2
Figure 7-5 Plant and Animal Cells
Go to
Section:
Plant Cell
Cell Membrane
Vacuole
Chloroplasts
Cell
Wall
31. Eukaryotic Cell Organelles and
Function
9. Cell Wall
Function: provides support and
protection to the cell membrane
Found outside the cell membrane in plant
cells