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1. A(n) _____ is the 
• smallest unit that 
• can perform all life 
• processes. 
• (core Biology 1.3) 
• a. cell 
• b. tissue 
• c. organ 
• d. organ system
Standards 8.5.2 & 8.5.3 
Bert wants to paint his garage with two coats of a special preservative 
paint. The dimensions of his garage is given below. Each quart of 
paint will cover 7 square meters of area and costs 8.50 per quart. 
2. (1pt) What is the area of Bert’s garage that will be painted? 
3. (1pt) What is the minimum number of quarts of paint Bert will need? 
4. (1pt) How much will it cost to paint Bert’s garage? 
Area triangle = ½ b h A = w x l
BACTERIA A DIVIDES EVERY 20 MINUTES. BACTERIA 
B DIVIDES AT A FASTER RATE. 
AT THE END OF ONE HOUR THERE ARE 50% MORE 
BACTERIA B THAN BACTERIA A. 5. (1PT) HOW MANY 
BACTERIUM B ARE THERE? (7.NS.5 & 7.NS.8)
7.3.1 Explain that all living organisms 
are composed of one cell or multiple 
cells and that the many functions 
needed to sustain life are carried out 
within cells. 
7.3.3 Explain that, although the way 
cells function is similar in all living 
organisms, multicellular organisms 
have specialized cells whose 
specialized functions are directly 
related to their structure.
7.3.4 Compare and contrast 
similarities and differences among 
specialized sub cellular 
components within plant and 
animal cells (including organelles 
and cell walls
Cell – the smallest un i t 
that can perform all 
life’s processes
Cell theory 
1. All living things are made of 
one or more cells 
2. Cells are the basic units of 
structure and function 
in organisms 
3. All cells arise 
from existing 
cells
Two types of Cells 
1. Prokaryote –lacks a nucleus and other 
internal compartments DNA is a 
single loop have a cell wall 
bacteria 
Flagellum allows 
Bacteria to move
2. Eukaryotic Cell – c e ll with a nucleus 
have organelles 
Plant & animal 
cells
Two types of Eukaryotic Cells 
Plant 
Animal
Animal Cell
Organelle – one of small bodies in a 
cell’s cytoplasm that are specialized to 
perform a specific function
Nucleus –the organelle that contains the 
cell’s DNA and is the control center of the 
cell – found in nuclear membrane 
DNA – the genetic material you inherit 
from your parents - contains 
information that controls 
your traits 
(eye color, hair color etc. ) 
codes for proteins 
DNA located on 
chromosomes
1. (1pt) What is the only organelle found 
inside of the nuclear membrane? 
a. Mitochondria 
b. Nucleus 
c. Lysosome 
d. ribosome
Standards 8.5.2 & 8.5.3 
Bert wants to paint his garage with two coats of a special preservative 
paint. The dimensions of his garage is given below. Each quart of 
paint will cover 6 square meters of area and costs $7.50 per quart. 
2. (1pt) What is the area of Bert’s garage that will be painted? 
3. (1pts) What is the minimum number of quarts of paint Bert will 
need? 
4. (1pts) How much will it cost to paint Bert’s garage? 
Area triangle = ½ b h A = w x l
BACTERIA A DIVIDES EVERY 15 MINUTES. BACTERIA 
B DIVIDES AT A SLOWER RATE. 
AT THE END OF ONE HOUR THERE ARE 50% LESS 
BACTERIA B THAN BACTERIA A. HOW MANY 
BACTERIUM B ARE THERE? (7.NS.5 & 7.NS.8)
7.3.1 Explain that all living organisms 
are composed of one cell or multiple 
cells and that the many functions 
needed to sustain life are carried out 
within cells. 
7.3.3 Explain that, although the way 
cells function is similar in all living 
organisms, multicellular organisms 
have specialized cells whose 
specialized functions are directly 
related to their structure.
7.3.4 Compare and contrast 
similarities and differences among 
specialized sub cellular 
components within plant and 
animal cells (including organelles 
and cell walls
Cell membrane – pro t ective barrier that 
encloses a cell which separates the cell 
from its environment – controls 
movement of materials in and out of 
cell
Mitochondria – orga n elle that breaks 
down food to make energy for the cell 
Mitochondria has own DNA which is 
inherited from mother
Cellular respiration takes place in mitochondria 
Sugar + oxygen → energy (ATP) + carbon dioxide + water 
Cellular Respiration
Cytoplasm – the fluid inside the 
cell – includes all organelles 
except nucleus
Endoplasmic Reticulu m (ER) – system of 
internal membranes that move proteins 
and other substances through the cell
Golgi apparatus – membrane-bound sacs 
that serves as a packaging and 
distribution center for proteins they receive 
from the ER.
lysosome A membrane-bounded organelle which 
contains digestive enzymes. It acts as the "garbage 
disposal" of the cell by breaking down cell components 
that are no longer needed as well as molecules or even 
bacteria that are ingested by the cell.
Ribosome – make proteins for the cell
Plant Cell
Plant cells have all the structures that 
animal cells have plus 3 structures that 
animal cells do not have 
cell wall 
chloroplast
Plant cells have 3 structures that 
animal cells do not 
1. cell wall 
a rigid structure that 
surrounds the cell membrane 
and provides support for 
the 
cell
Plant cells have 3 structures that animal 
cells do not 
2. Chloroplast – organelle where 
photosynthesis takes place 
Chlorophyll – the green pigment inside 
the chloroplast that traps the sun’s 
energy for use in photosynthesis
1. (1pt) The _____is the cellular organelle 
that converts food into a form of 
energy the cell can use. (core std. B 
1.3) 
a. nucleolus b. mitochondrion 
c. ribosome d. chloroplast
Standards 8.5.2 & 8.5.3 
Bert wants to paint his garage with two coats of a special preservative 
paint. The dimensions of his garage is given below. Each quart of 
paint will cover 8 square meters of area and costs 10.50 per quart. 
2. (1pt) What is the area of Bert’s garage that will be painted? 
3. (2pts) What is the minimum number of quarts of paint Bert will 
need? 
4. (2pts) How much will it cost to paint Bert’s garage? 
Area triangle = ½ b h A = w x l
BACTERIA A DIVIDES EVERY 15 MINUTES. BACTERIA 
B DIVIDES AT A FASTER RATE. 
AT THE END OF ONE HOUR THERE ARE 75% MORE 
BACTERIA B THAN BACTERIA A. HOW MANY 
BACTERIUM B ARE THERE? (7.NS.5 & 7.NS.8)
7.3.1 Explain that all living organisms 
are composed of one cell or multiple 
cells and that the many functions 
needed to sustain life are carried out 
within cells. 
7.3.3 Explain that, although the way 
cells function is similar in all living 
organisms, multicellular organisms 
have specialized cells whose 
specialized functions are directly 
related to their structure.
7.3.2 Understand tha t water is a major 
component within all cells and is 
required to carry out many cellular 
functions.
Cell membrane – a phospholipid layer 
that covers a cell’s surface and acts as 
a barrier between the inside of a cell 
and the cells environment
PHOSPHOLIPID is a lipid that contains phosphorous 
and is a structural component of the cell membrane 
LIPID a type of biochemical that does not dissolve in water (fats and 
steroids) 
Fats store energy
Phospholipid – a lipid made of a phosphate 
group and 2 fatty acids 
Lipid bilayer – basic structure of membrane 
composed of 2 layers of phospholipids 
polar – attracted to water 
nonpolar – repelled by water
The arrangement of the phospholipids in 
the lipid bilayer makes the cell membrane 
selectively permeable
DIFFUSION movement of high concentration to low 
`concentration Allows materials to move in and out of cell 
http://www.biosci.ohiou.edu/introbioslab/Bios170/diffusion/Diffusion.html 
Untitled Document 
OSMOSIS diffusion of water 
Important because cells are mostly water (down concentration gradient)
Water will move from high concentration of WATER to 
low concentration of WATER. Put a cell in pure 
water- water will move into the cell causing it to swell
During passive transport (facilitated diffusion) particles 
are moved across the cell membrane through ion 
channels 
Carrier protein – binds to a molecule allowing 
molecules (sugars) to pass
1. (1pt) A bacterium that lost its flagella 
would be unable to ___. (7.3.1) 
a. move 
b. divide 
c. make proteins 
d. maintain its shape
Standards 8.5.2 & 8.5.3 
Bert wants to paint his garage with two coats of a special preservative 
paint. The dimensions of his garage is given below. Each quart of 
paint will cover 5 square meters of area and costs 9.50 per quart. 
2. (1pt) What is the area of Bert’s garage that will be painted? 
3. (1pt) What is the minimum number of quarts of paint Bert will need? 
4. (1pt) How much will it cost to paint Bert’s garage? 
Area triangle = ½ b h A = w x l
BACTERIA A DIVIDES EVERY 10 MINUTES. BACTERIA 
B DIVIDES AT A SLOWER RATE. 
AT THE END OF ONE HOUR THERE ARE 50% LESS 
BACTERIA B THAN BACTERIA A. 5. (1PT) HOW MANY 
BACTERIUM B ARE THERE? (7.NS.5 & 7.NS.8)
7.3.1 Explain that all living organisms 
are composed of one cell or multiple 
cells and that the many functions 
needed to sustain life are carried out 
within cells. 
7.3.3 Explain that, although the way 
cells function is similar in all living 
organisms, multicellular organisms 
have specialized cells whose 
specialized functions are directly 
related to their structure.
7.3.7 Describe how various organs and 
tissues serve the needs of cells for 
nutrient and oxygen delivery and waste 
removal.
process in which cell membrane surrounds 
and encloses large particle to bring into cell
ENDOCYTOSIS continued 
Endocytosis and Exocytosis
the process by which a cell releases a large particle 
by enclosing it in a vesicle
EXOCYTOSIS continued 
Exocytosis and Endocytosis
Sodium-potassium pump is one of the most important 
active transport systems in cell. Sodium pumped out 
of cell against gradient potassium pumped into cell 
against gradient cells use to keep potassium in cell 
and get rid of sodium
PASSIVE AND ACTIVE TRANSPORT 
Animations 
javascript:changePages('dif_mov.htm','dif_text1.htm'); 
the movement of materials across the movement of materials 
across 
cell membrane without using cell membrane that uses 
energy energy (ATP) 
Concepts in Biochemistry - Interactive Animations
Receptor proteins in the cell membrane 
bind to signal molecules in the blood 
stream which allows the cell to respond 
to signals from other cells in the body
Cilia or flagella – hair like structures that allow one 
celled Protista (protists) to move 
Protists – are eukaryotes that are not plant, animal 
or fungi
1. (1pt) I am the barrier between the 
inside and the outside of the cell. 
I allow food, oxygen, and 
other needed materials 
to enter the cell. I am 
a part of animal and 
plant cells. What am I? 
(core Biology B 1.2) 
a. cell membrane b. cell wall 
c. cytoplasm d. lipid bilayer
Standards 8.5.2 & 8.5.3 
Bert wants to paint his garage with two coats of a special preservative 
paint. The dimensions of his garage is given below. Each quart of 
paint will cover 6 square meters of area and costs 11.50 per quart. 
2. (1pt) What is the area of Bert’s garage that will be painted? 
3. (2pts) What is the minimum number of quarts of paint Bert will 
need? 
4. (2pts) How much will it cost to paint Bert’s garage? 
Area triangle = ½ b h A = w x l
BACTERIA A DIVIDES EVERY 10 MINUTES. BACTERIA 
B DIVIDES AT A SLOWER RATE. 
AT THE END OF TWO HOURS THERE ARE 50% LESS 
BACTERIA B THAN BACTERIA A. 5. (1PT) HOW MANY 
BACTERIUM B ARE THERE? (7.NS.5 & 7.NS.8)
6. (1PT) Which is true of 
scientific theories? ( std. 
7.NS.1) 
a. they are replaceable 
b. the are unchangeable 
c. they are unchallenged 
d. they are guesses
7.3.6 Explain that after fertilization a small 
cluster of cells divides to form the basic 
tissues of an embryo and further develops 
into all the specialized tissues and organs 
within a multicellular organism.
GREGOR MENDEL the 
father of genetics 
Mendel discovered the 
principles of heredity while 
studying pea plants 
• mendel
HEREDITY 
The passing of 
genetic traits 
from parent 
to offspring
HEREDITY – passing traits from parent to offspring 
↓ 
GREGOR MENDEL – discovered principles of 
heredity while studying pea plants 
↓ 
used pea plants because they were self-pollinating 
↓ 
SELF-POLLINATING – plants have both female and 
male parts (can fertilize itself) 
↓ 
self-pollinating plant leads to true breeding plant 
(purebred) 
↓
TRUE BREEDING PLANT – one where all the offspring 
have same characteristics as parent 
↓ 
CHARACTERISTIC – is a feature that has different 
forms 
↓ 
TRAITS – the different forms of a characteristic
↑ self-pollination 
CROSS-POLLINATION 
pollen from one 
plant fertilizes 
flower of another 
plant
MENDEL’S first experiment 
(crossed true breeding plants 
with different traits 
) 
Mendel's Peas 
http://www2.edc.org/weblabs/Mendel/MendelMenu.html
Mendel used true-breeding plants 
for seven characteristics 
(in this case 
seed shape) 
Mendel's Peas 
http://www2.edc.org/weblabs/Mendel/MendelMenu.html 
Process called 
Selective breeding
RATIO –is a relationship between two 
numbers Continuum Javascript Ratio Calculator 
Of the 7 characteristics Mendel 
studied there was a fixed ratio 
between the recessive and 
dominant trait in the 2nd generation
1. (1pt) Which of the following scientists 
discovered the principles of heredity by 
studying pea plants. (std. 8.3.3) 
a. Charles Darwin 
b. Louis Pasteur 
c. Gregor Mendel 
d. Marie Curie 
e. Leroy Jenkins!!!!
Standards 8.5.2 & 8.5.3 
Bert wants to paint his garage with two coats of a special preservative 
paint. The dimensions of his garage is given below. Each quart of 
paint will cover 6 square meters of area and costs 11.50 per quart. 
2. (1pt) What is the area of Bert’s garage that will be painted? 
3. (1pt) What is the minimum number of quarts of paint Bert will need? 
4. (1pt) How much will it cost to paint Bert’s garage? 
Area triangle = ½ b h A = w x l
BACTERIA A DIVIDES EVERY 30 MINUTES. BACTERIA 
B DIVIDES AT A FASTER RATE. 
AT THE END OF THREE HOURS THERE ARE 50% MORE 
BACTERIA B THAN BACTERIA A. 5. (1PT) HOW MANY 
BACTERIA B ARE THERE? (7.NS.5 & 7.NS.8)
7.3.6 Explain that after fertilization a small 
cluster of cells divides to form the basic 
tissues of an embryo and further develops 
into all the specialized tissues and organs 
within a multicellular organism.
MENDEL’S first experiment 
(crossed true breeding plants 
with different traits 
) 
Mendel's Peas 
http://www2.edc.org/weblabs/Mendel/MendelMenu.html
Mendel used true-breeding plants 
for seven characteristics 
(in this case 
seed shape) 
Mendel's Peas 
http://www2.edc.org/weblabs/Mendel/MendelMenu.html 
Process called 
Selective breeding
RATIO –is a relationship between two 
numbers Continuum Javascript Ratio Calculator 
Of the 7 characteristics Mendel 
studied there was a fixed ratio 
between the recessive and 
dominant trait in the 2nd generation
1st experiment 
Mendel crossed true-breeding 
purple flower with true-breeding 
white flower
This cross called 
First generation plants 
All first generation plants had 
purple flowers. White flowers 
disappeared in 1st generation
The trait that appeared in the 1st 
generation was DOMINANT 
The trait that disappeared in 1st 
generation was RECESSIVE
Mendel used true-breeding plants 
for seven characteristics 
(in this case 
seed shape) 
Mendel's Peas 
http://www2.edc.org/weblabs/Mendel/MendelMenu.html 
Process called 
Selective breeding
A dominant trait (alleles) always shows up in the 
organism when that trait (alleles) is present 
A recessive trait (allele) is hidden whenever the 
dominant allele is present
Identify and describe the difference 
between inherited traits and the 
physical and behavioral traits that 
are acquired or learned. 
Giant Redwoods
A cquired traits 
manners 
hair style 
language 
scars 
Inherited traits 
eye color 
hair color 
blood type 
dimples Liger

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7th biology preview

  • 1. 1. A(n) _____ is the • smallest unit that • can perform all life • processes. • (core Biology 1.3) • a. cell • b. tissue • c. organ • d. organ system
  • 2. Standards 8.5.2 & 8.5.3 Bert wants to paint his garage with two coats of a special preservative paint. The dimensions of his garage is given below. Each quart of paint will cover 7 square meters of area and costs 8.50 per quart. 2. (1pt) What is the area of Bert’s garage that will be painted? 3. (1pt) What is the minimum number of quarts of paint Bert will need? 4. (1pt) How much will it cost to paint Bert’s garage? Area triangle = ½ b h A = w x l
  • 3. BACTERIA A DIVIDES EVERY 20 MINUTES. BACTERIA B DIVIDES AT A FASTER RATE. AT THE END OF ONE HOUR THERE ARE 50% MORE BACTERIA B THAN BACTERIA A. 5. (1PT) HOW MANY BACTERIUM B ARE THERE? (7.NS.5 & 7.NS.8)
  • 4. 7.3.1 Explain that all living organisms are composed of one cell or multiple cells and that the many functions needed to sustain life are carried out within cells. 7.3.3 Explain that, although the way cells function is similar in all living organisms, multicellular organisms have specialized cells whose specialized functions are directly related to their structure.
  • 5. 7.3.4 Compare and contrast similarities and differences among specialized sub cellular components within plant and animal cells (including organelles and cell walls
  • 6. Cell – the smallest un i t that can perform all life’s processes
  • 7. Cell theory 1. All living things are made of one or more cells 2. Cells are the basic units of structure and function in organisms 3. All cells arise from existing cells
  • 8. Two types of Cells 1. Prokaryote –lacks a nucleus and other internal compartments DNA is a single loop have a cell wall bacteria Flagellum allows Bacteria to move
  • 9. 2. Eukaryotic Cell – c e ll with a nucleus have organelles Plant & animal cells
  • 10. Two types of Eukaryotic Cells Plant Animal
  • 12. Organelle – one of small bodies in a cell’s cytoplasm that are specialized to perform a specific function
  • 13. Nucleus –the organelle that contains the cell’s DNA and is the control center of the cell – found in nuclear membrane DNA – the genetic material you inherit from your parents - contains information that controls your traits (eye color, hair color etc. ) codes for proteins DNA located on chromosomes
  • 14. 1. (1pt) What is the only organelle found inside of the nuclear membrane? a. Mitochondria b. Nucleus c. Lysosome d. ribosome
  • 15. Standards 8.5.2 & 8.5.3 Bert wants to paint his garage with two coats of a special preservative paint. The dimensions of his garage is given below. Each quart of paint will cover 6 square meters of area and costs $7.50 per quart. 2. (1pt) What is the area of Bert’s garage that will be painted? 3. (1pts) What is the minimum number of quarts of paint Bert will need? 4. (1pts) How much will it cost to paint Bert’s garage? Area triangle = ½ b h A = w x l
  • 16. BACTERIA A DIVIDES EVERY 15 MINUTES. BACTERIA B DIVIDES AT A SLOWER RATE. AT THE END OF ONE HOUR THERE ARE 50% LESS BACTERIA B THAN BACTERIA A. HOW MANY BACTERIUM B ARE THERE? (7.NS.5 & 7.NS.8)
  • 17. 7.3.1 Explain that all living organisms are composed of one cell or multiple cells and that the many functions needed to sustain life are carried out within cells. 7.3.3 Explain that, although the way cells function is similar in all living organisms, multicellular organisms have specialized cells whose specialized functions are directly related to their structure.
  • 18. 7.3.4 Compare and contrast similarities and differences among specialized sub cellular components within plant and animal cells (including organelles and cell walls
  • 19. Cell membrane – pro t ective barrier that encloses a cell which separates the cell from its environment – controls movement of materials in and out of cell
  • 20. Mitochondria – orga n elle that breaks down food to make energy for the cell Mitochondria has own DNA which is inherited from mother
  • 21. Cellular respiration takes place in mitochondria Sugar + oxygen → energy (ATP) + carbon dioxide + water Cellular Respiration
  • 22. Cytoplasm – the fluid inside the cell – includes all organelles except nucleus
  • 23. Endoplasmic Reticulu m (ER) – system of internal membranes that move proteins and other substances through the cell
  • 24. Golgi apparatus – membrane-bound sacs that serves as a packaging and distribution center for proteins they receive from the ER.
  • 25. lysosome A membrane-bounded organelle which contains digestive enzymes. It acts as the "garbage disposal" of the cell by breaking down cell components that are no longer needed as well as molecules or even bacteria that are ingested by the cell.
  • 26. Ribosome – make proteins for the cell
  • 28. Plant cells have all the structures that animal cells have plus 3 structures that animal cells do not have cell wall chloroplast
  • 29. Plant cells have 3 structures that animal cells do not 1. cell wall a rigid structure that surrounds the cell membrane and provides support for the cell
  • 30. Plant cells have 3 structures that animal cells do not 2. Chloroplast – organelle where photosynthesis takes place Chlorophyll – the green pigment inside the chloroplast that traps the sun’s energy for use in photosynthesis
  • 31. 1. (1pt) The _____is the cellular organelle that converts food into a form of energy the cell can use. (core std. B 1.3) a. nucleolus b. mitochondrion c. ribosome d. chloroplast
  • 32. Standards 8.5.2 & 8.5.3 Bert wants to paint his garage with two coats of a special preservative paint. The dimensions of his garage is given below. Each quart of paint will cover 8 square meters of area and costs 10.50 per quart. 2. (1pt) What is the area of Bert’s garage that will be painted? 3. (2pts) What is the minimum number of quarts of paint Bert will need? 4. (2pts) How much will it cost to paint Bert’s garage? Area triangle = ½ b h A = w x l
  • 33. BACTERIA A DIVIDES EVERY 15 MINUTES. BACTERIA B DIVIDES AT A FASTER RATE. AT THE END OF ONE HOUR THERE ARE 75% MORE BACTERIA B THAN BACTERIA A. HOW MANY BACTERIUM B ARE THERE? (7.NS.5 & 7.NS.8)
  • 34. 7.3.1 Explain that all living organisms are composed of one cell or multiple cells and that the many functions needed to sustain life are carried out within cells. 7.3.3 Explain that, although the way cells function is similar in all living organisms, multicellular organisms have specialized cells whose specialized functions are directly related to their structure.
  • 35. 7.3.2 Understand tha t water is a major component within all cells and is required to carry out many cellular functions.
  • 36. Cell membrane – a phospholipid layer that covers a cell’s surface and acts as a barrier between the inside of a cell and the cells environment
  • 37. PHOSPHOLIPID is a lipid that contains phosphorous and is a structural component of the cell membrane LIPID a type of biochemical that does not dissolve in water (fats and steroids) Fats store energy
  • 38. Phospholipid – a lipid made of a phosphate group and 2 fatty acids Lipid bilayer – basic structure of membrane composed of 2 layers of phospholipids polar – attracted to water nonpolar – repelled by water
  • 39. The arrangement of the phospholipids in the lipid bilayer makes the cell membrane selectively permeable
  • 40. DIFFUSION movement of high concentration to low `concentration Allows materials to move in and out of cell http://www.biosci.ohiou.edu/introbioslab/Bios170/diffusion/Diffusion.html Untitled Document OSMOSIS diffusion of water Important because cells are mostly water (down concentration gradient)
  • 41. Water will move from high concentration of WATER to low concentration of WATER. Put a cell in pure water- water will move into the cell causing it to swell
  • 42.
  • 43. During passive transport (facilitated diffusion) particles are moved across the cell membrane through ion channels Carrier protein – binds to a molecule allowing molecules (sugars) to pass
  • 44. 1. (1pt) A bacterium that lost its flagella would be unable to ___. (7.3.1) a. move b. divide c. make proteins d. maintain its shape
  • 45. Standards 8.5.2 & 8.5.3 Bert wants to paint his garage with two coats of a special preservative paint. The dimensions of his garage is given below. Each quart of paint will cover 5 square meters of area and costs 9.50 per quart. 2. (1pt) What is the area of Bert’s garage that will be painted? 3. (1pt) What is the minimum number of quarts of paint Bert will need? 4. (1pt) How much will it cost to paint Bert’s garage? Area triangle = ½ b h A = w x l
  • 46. BACTERIA A DIVIDES EVERY 10 MINUTES. BACTERIA B DIVIDES AT A SLOWER RATE. AT THE END OF ONE HOUR THERE ARE 50% LESS BACTERIA B THAN BACTERIA A. 5. (1PT) HOW MANY BACTERIUM B ARE THERE? (7.NS.5 & 7.NS.8)
  • 47. 7.3.1 Explain that all living organisms are composed of one cell or multiple cells and that the many functions needed to sustain life are carried out within cells. 7.3.3 Explain that, although the way cells function is similar in all living organisms, multicellular organisms have specialized cells whose specialized functions are directly related to their structure.
  • 48. 7.3.7 Describe how various organs and tissues serve the needs of cells for nutrient and oxygen delivery and waste removal.
  • 49.
  • 50. process in which cell membrane surrounds and encloses large particle to bring into cell
  • 52. the process by which a cell releases a large particle by enclosing it in a vesicle
  • 54. Sodium-potassium pump is one of the most important active transport systems in cell. Sodium pumped out of cell against gradient potassium pumped into cell against gradient cells use to keep potassium in cell and get rid of sodium
  • 55. PASSIVE AND ACTIVE TRANSPORT Animations javascript:changePages('dif_mov.htm','dif_text1.htm'); the movement of materials across the movement of materials across cell membrane without using cell membrane that uses energy energy (ATP) Concepts in Biochemistry - Interactive Animations
  • 56. Receptor proteins in the cell membrane bind to signal molecules in the blood stream which allows the cell to respond to signals from other cells in the body
  • 57. Cilia or flagella – hair like structures that allow one celled Protista (protists) to move Protists – are eukaryotes that are not plant, animal or fungi
  • 58. 1. (1pt) I am the barrier between the inside and the outside of the cell. I allow food, oxygen, and other needed materials to enter the cell. I am a part of animal and plant cells. What am I? (core Biology B 1.2) a. cell membrane b. cell wall c. cytoplasm d. lipid bilayer
  • 59. Standards 8.5.2 & 8.5.3 Bert wants to paint his garage with two coats of a special preservative paint. The dimensions of his garage is given below. Each quart of paint will cover 6 square meters of area and costs 11.50 per quart. 2. (1pt) What is the area of Bert’s garage that will be painted? 3. (2pts) What is the minimum number of quarts of paint Bert will need? 4. (2pts) How much will it cost to paint Bert’s garage? Area triangle = ½ b h A = w x l
  • 60. BACTERIA A DIVIDES EVERY 10 MINUTES. BACTERIA B DIVIDES AT A SLOWER RATE. AT THE END OF TWO HOURS THERE ARE 50% LESS BACTERIA B THAN BACTERIA A. 5. (1PT) HOW MANY BACTERIUM B ARE THERE? (7.NS.5 & 7.NS.8)
  • 61. 6. (1PT) Which is true of scientific theories? ( std. 7.NS.1) a. they are replaceable b. the are unchangeable c. they are unchallenged d. they are guesses
  • 62. 7.3.6 Explain that after fertilization a small cluster of cells divides to form the basic tissues of an embryo and further develops into all the specialized tissues and organs within a multicellular organism.
  • 63. GREGOR MENDEL the father of genetics Mendel discovered the principles of heredity while studying pea plants • mendel
  • 64. HEREDITY The passing of genetic traits from parent to offspring
  • 65. HEREDITY – passing traits from parent to offspring ↓ GREGOR MENDEL – discovered principles of heredity while studying pea plants ↓ used pea plants because they were self-pollinating ↓ SELF-POLLINATING – plants have both female and male parts (can fertilize itself) ↓ self-pollinating plant leads to true breeding plant (purebred) ↓
  • 66. TRUE BREEDING PLANT – one where all the offspring have same characteristics as parent ↓ CHARACTERISTIC – is a feature that has different forms ↓ TRAITS – the different forms of a characteristic
  • 67. ↑ self-pollination CROSS-POLLINATION pollen from one plant fertilizes flower of another plant
  • 68. MENDEL’S first experiment (crossed true breeding plants with different traits ) Mendel's Peas http://www2.edc.org/weblabs/Mendel/MendelMenu.html
  • 69. Mendel used true-breeding plants for seven characteristics (in this case seed shape) Mendel's Peas http://www2.edc.org/weblabs/Mendel/MendelMenu.html Process called Selective breeding
  • 70. RATIO –is a relationship between two numbers Continuum Javascript Ratio Calculator Of the 7 characteristics Mendel studied there was a fixed ratio between the recessive and dominant trait in the 2nd generation
  • 71.
  • 72. 1. (1pt) Which of the following scientists discovered the principles of heredity by studying pea plants. (std. 8.3.3) a. Charles Darwin b. Louis Pasteur c. Gregor Mendel d. Marie Curie e. Leroy Jenkins!!!!
  • 73. Standards 8.5.2 & 8.5.3 Bert wants to paint his garage with two coats of a special preservative paint. The dimensions of his garage is given below. Each quart of paint will cover 6 square meters of area and costs 11.50 per quart. 2. (1pt) What is the area of Bert’s garage that will be painted? 3. (1pt) What is the minimum number of quarts of paint Bert will need? 4. (1pt) How much will it cost to paint Bert’s garage? Area triangle = ½ b h A = w x l
  • 74. BACTERIA A DIVIDES EVERY 30 MINUTES. BACTERIA B DIVIDES AT A FASTER RATE. AT THE END OF THREE HOURS THERE ARE 50% MORE BACTERIA B THAN BACTERIA A. 5. (1PT) HOW MANY BACTERIA B ARE THERE? (7.NS.5 & 7.NS.8)
  • 75. 7.3.6 Explain that after fertilization a small cluster of cells divides to form the basic tissues of an embryo and further develops into all the specialized tissues and organs within a multicellular organism.
  • 76. MENDEL’S first experiment (crossed true breeding plants with different traits ) Mendel's Peas http://www2.edc.org/weblabs/Mendel/MendelMenu.html
  • 77. Mendel used true-breeding plants for seven characteristics (in this case seed shape) Mendel's Peas http://www2.edc.org/weblabs/Mendel/MendelMenu.html Process called Selective breeding
  • 78. RATIO –is a relationship between two numbers Continuum Javascript Ratio Calculator Of the 7 characteristics Mendel studied there was a fixed ratio between the recessive and dominant trait in the 2nd generation
  • 79.
  • 80. 1st experiment Mendel crossed true-breeding purple flower with true-breeding white flower
  • 81. This cross called First generation plants All first generation plants had purple flowers. White flowers disappeared in 1st generation
  • 82. The trait that appeared in the 1st generation was DOMINANT The trait that disappeared in 1st generation was RECESSIVE
  • 83. Mendel used true-breeding plants for seven characteristics (in this case seed shape) Mendel's Peas http://www2.edc.org/weblabs/Mendel/MendelMenu.html Process called Selective breeding
  • 84. A dominant trait (alleles) always shows up in the organism when that trait (alleles) is present A recessive trait (allele) is hidden whenever the dominant allele is present
  • 85. Identify and describe the difference between inherited traits and the physical and behavioral traits that are acquired or learned. Giant Redwoods
  • 86. A cquired traits manners hair style language scars Inherited traits eye color hair color blood type dimples Liger