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Photosynthesis, Cellular Respiration, and a little Fermentation. Carotene. Xanthophyll. Chlorophyll A. Chlorophyll B. First why do leaves change colors??. What does it take to grow a plant???. How do we grow a plant?. But is that all????. Photosynthesis. Photosynthesis. Photosynthesis. - PowerPoint PPT Presentation
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Photosynthesis, Photosynthesis, Cellular Respiration, Cellular Respiration, and a little and a little FermentationFermentation
First why do leaves change First why do leaves change colors??colors??
Chlorophyll B
Chlorophyll A
Xanthophyll
Carotene
What does it take to What does it take to grow a plant???grow a plant???
How do we grow a How do we grow a plant?plant?
But is that all????
PhotosynthesisPhotosynthesis
PhotosynthesisPhotosynthesis
PhotosynthesisPhotosynthesis
Photosynthesis Photosynthesis Sunlight (light Energy)
Water H2O
Carbon Dioxide CO2
PhotosynthesisPhotosynthesisSunlight
(Light Energy)
WaterH2O
Carbon Dioxide
CO2
GlucoseC6H12O6
OxygenO2
PhotosynthesisPhotosynthesis
PhotosynthesisPhotosynthesisSunlight
(Light Energy)
WaterH2O
Carbon Dioxide
CO2
GlucoseC6H12O6
OxygenO2
Photosynthesis Photosynthesis Let’s write the chemical equation Let’s write the chemical equation
on the board!!on the board!!
What are the reactants, What are What are the reactants, What are the products?the products?
What type of energy What type of energy transformations are going on?transformations are going on?
Cell RespirationCell Respiration
GlucoseC6H12O6
OxygenO2
Carbon Dioxide
CO2
WaterH2O
Energy
Cell RespirationCell RespirationGlucoseC6H12O6
OxygenO2
Carbon Dioxide
CO2
WaterH2O
Energy
Cell RespirationCell Respiration Let’s draw the chemical formula Let’s draw the chemical formula
on the board!!on the board!!
What are the reactants, What are What are the reactants, What are the products?the products?
What type of energy What type of energy transformations are going on?transformations are going on?
It’s a cycle in plant cells, Jennnnay
The process of cellular The process of cellular respiration is taking respiration is taking place in your cells right place in your cells right now!!now!!
You are currently taking in oxygen You are currently taking in oxygen and burning sugars within the and burning sugars within the mitochondria to release chemical mitochondria to release chemical energy. energy.
This process is also known as This process is also known as Aerobic Respiration. Why?Aerobic Respiration. Why?– Because Oxygen is present which Because Oxygen is present which
allows your cells to burn glucose into allows your cells to burn glucose into energy much more efficiently.energy much more efficiently.
– I am sure you have heard of Aerobics.I am sure you have heard of Aerobics.
What would happen if your What would happen if your cells were deprived of oxygen?? cells were deprived of oxygen?? Would they still be able to burn Would they still be able to burn glucose to make energy??glucose to make energy?? YES!!YES!! FermentationFermentation
– When might this occur?When might this occur?– Long distance runners often create an Long distance runners often create an
anaerobic environment for their cellsanaerobic environment for their cells What does anaerobic mean??What does anaerobic mean??
– No Oxygen presentNo Oxygen present– Not a very energy efficient process Not a very energy efficient process
and a bad side effect is produced:and a bad side effect is produced: Lactic AcidLactic Acid
A different example of A different example of fermentationfermentation Breweries rely on this process:Breweries rely on this process:
– Yeast cells need energy to survive, Yeast cells need energy to survive, so they will breakdown sugars in so they will breakdown sugars in anaerobic conditions and a anaerobic conditions and a byproduct is alcohol.byproduct is alcohol.
– How do you know COHow do you know CO22 is produced? is produced?
Based on the graph, what color is this plant:
0%
0%
0% 1. Green2. Red3. Violet
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Based on the graph, what colors are best absorbed by this plant:
0%
0%
0%
0% 1. Green and orange2. Red and violets3. Violet and green4. Green and reds
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20
21 22 23 24 25 26 27 28 29 30
Based on the graph below, which color light is least absorbed by plants for
photosynthesis
0%
0%
0%
0%
0% 1. Red2. Yellow3. Green4. Orange5. Violet
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What is this graph showing you??
pH
A scientist wants to study photosynthesis in a newly discovered species. Which of these cell
structures should the scientist study?
Vacuole
s
Chloroplasts
Mito
chond
ria
Ribosomes
0% 0%0%0%
1. Vacuoles 2. Chloroplasts3. Mitochondria4. Ribosomes
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20
21 22 23 24 25 26 27 28 29 30
Muscle cells require more energy than do most other cells. Which organelles would you expect to find
in greater abundance in muscle cells than in most other cells?
Cilia
Mito
chond
ria
Ribosomes
Chloroplasts
0% 0%0%0%
1. Cilia2. Mitochondria3. Ribosomes4. Chloroplasts
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20
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Which of these processes results in carbon dioxide production?
Osm
osis
Respira
tion
Evapora
tion
Photosynthe
sis
0% 0%0%0%
1. Osmosis2. Respiration3. Evaporation4. Photosynthesis
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20
21 22 23 24 25 26 27 28 29 30
Some organisms that live in the intestines of cows do not require oxygen to survive. Which of these
best describes the process by which these organisms obtain energy?
Osm
osis
Mito
sis
Cellular
resp
iratio
n
Fermen
tation
0% 0%0%0%
1. Osmosis2. Mitosis3. Cellular
respiration4. Fermentation
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20
21 22 23 24 25 26 27 28 29 30
Let’s fill in this chart with the molecules and then the energy transformations
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