photosynthesis, cellular respiration, and a little fermentation
TRANSCRIPT
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Photosynthesis, Photosynthesis, Cellular Respiration, Cellular Respiration, and a little and a little FermentationFermentation
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What does it take to What does it take to grow a plant???grow a plant???
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How do we grow a How do we grow a plant?plant?
But is that all????
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PhotosynthesisPhotosynthesis
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PhotosynthesisPhotosynthesis
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PhotosynthesisPhotosynthesis
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Photosynthesis Photosynthesis
Sunlight (light Energy)
Water H2O
Carbon Dioxide CO2
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PhotosynthesisPhotosynthesis
Sunlight (Light Energy)
Water
H2O
Carbon Dioxide
CO2
Glucose
C6H12O6
Oxygen
O2
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PhotosynthesisPhotosynthesis
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PhotosynthesisPhotosynthesisSunlight
(Light Energy)
Water
H2O
Carbon Dioxide
CO2
Glucose
C6H12O6
Oxygen
O2
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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?
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Based on the graph below, what color is this object:
0%
0%
0%
0%
0% 1. Red
2. Orange
3. Yellow
4. Blue
5. Violet
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
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First why do leaves change First why do leaves change colors??colors??
Chlorophyll B
Chlorophyll A
Xanthophyll
Carotene
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Below is the absorption spectrum for the spinach. Discuss with your partner the most useful/absorbed part of the visible
light spectrum and the least useful/absorbed part of the spectrum.
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Based on the graph, what color is this plant:
0%
0%
0% 1. Green
2. Red
3. Violet
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
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Based on the graph, what colors are best absorbed by this plant:
0%
0%
0%
0% 1. Green and orange
2. Red and violets
3. Violet and green
4. 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
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EnergyEnergy
CombustionCombustion
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How does a candle How does a candle work?work?
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Cell RespirationCell Respiration
Glucose
C6H12O6
Oxygen
O2
Carbon Dioxide
CO2
Water
H2O
Energy
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Cell RespirationCell RespirationGlucose
C6H12O6
Oxygen
O2
Carbon Dioxide
CO2
Water
H2O
Energy
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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?
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Are your cells Are your cells respirating right respirating right now???now???
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So how do you get So how do you get glucose in your body?glucose in your body? And what is it exactly??And what is it exactly??
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It’s a cycle in plant cells, Jennnnay
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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 You are currently taking in oxygen and burning sugars within oxygen and burning sugars within the mitochondria to release the mitochondria to release chemical energy. chemical 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 I am sure you have heard of Aerobics.Aerobics.
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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
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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?
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Based on the graph, what color is this plant:
0%
0%
0% 1. Green
2. Red
3. Violet
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
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Based on the graph, what colors are best absorbed by this plant:
0%
0%
0%
0% 1. Green and orange
2. Red and violets
3. Violet and green
4. 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
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Based on the graph below, which color light is least absorbed by plants for
photosynthesis
0%
0%
0%
0%
0% 1. Red
2. Yellow
3. Green
4. Orange
5. Violet
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
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What is this graph showing you??
pH
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A scientist wants to study photosynthesis in a newly discovered species. Which of these cell
structures should the scientist study?
Vac
uoles
Chlo
ropla
sts
Mito
chond
ria
Rib
osom
es
0% 0%0%0%
1. Vacuoles
2. Chloroplasts
3. Mitochondria
4. 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
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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?
Cili
a
Mito
chond
ria
Rib
osom
es
Chlo
ropla
sts
0% 0%0%0%
1. Cilia
2. Mitochondria
3. Ribosomes
4. Chloroplasts
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
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Which of these processes results in carbon dioxide production?
Osm
osis
Res
piratio
n
Eva
porat
ion
Photo
synth
esis
0% 0%0%0%
1. Osmosis
2. Respiration
3. Evaporation
4. 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
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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
Cel
lula
r res
pira
tion
Fer
men
tatio
n
0% 0%0%0%
1. Osmosis
2. Mitosis
3. Cellular respiration
4. 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
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Let’s fill in this chart with the molecules and then the energy transformations
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