Cellular Energy. I. Energy for Living Things A. Organisms need energy to live B. Energy is the...
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Transcript of Cellular Energy. I. Energy for Living Things A. Organisms need energy to live B. Energy is the...
![Page 1: Cellular Energy. I. Energy for Living Things A. Organisms need energy to live B. Energy is the ability to do work.](https://reader030.fdocuments.net/reader030/viewer/2022032722/56649ceb5503460f949b7165/html5/thumbnails/1.jpg)
Cellular Energy
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I. Energy for Living ThingsA. Organisms need
energy to live
B. Energy is the ability to do work
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II. Energy Storing Molecules
a. ATP and NADPH
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Adenosine Triphosphate (ATP)
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ribose
adenine
phosphates
A. ATP is made of ribose sugar, adenine, and three phosphate groups.
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B. Organisms use ATP to temporarily store chemical energy.
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C. ATP is replenished by eating food.
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D. Energy is stored in bonds
ribose
adenine
high energy bonds
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E. Energy is released when a bond is broken
And…
adenosine diphosphate is produced (ADP)
ribose
adenine
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IV. All energy on Earth comes from the Sun
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A. Visible Light Waves
1. ROY G BIV
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B. Chlorophyll- a pigment that absorbs violet, blue, and red light (inside chloroplasts).
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` Autotroph- “self” Feeder (ex- plants) Heterotroph- Consumes other plants and
animals (ex- animal)
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I. ChloroplastsA. Chloroplasts: in leaves of plants- have
chlorophyll
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C Parts of the chloroplast1. Stroma –fluid/space inside each chloroplast
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2. Grana – stacks of Thylakoid sacs
3. Thylakoids –sacs which contain chlorophyll, site of photosynthesis
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Thylakoids
Grana Stroma
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D. Why are leaves green?
Because chlorophyll
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V. PhotosynthesisA. Photo – Light
B. Synthesis – Putting together
C. “making things with light”
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D. Chloroplasts capture light energy and build carbohydrates (food) from raw materials.
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E. Photosynthesis equation
6CO2 + 6H2O C6H12O6 + 6O2
Light energy
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VI. Light Reaction
1. Light energy from the sun hits chlorophyll molecules
2. ATP and NADPH is formed
3. Used H₂O and produces O₂
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4. ATP and NADPH are used as energy for the dark reaction
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VI. Dark Reaction or Calvin Cycle
1. The second part of photosynthesis
2. doesn’t need light energy to occur
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VI. Calvin Cycle/ Dark Cycle
3. Carbon dioxide (from the air) and ATP and NADPH from the light reaction are used to make carbohydrates (food).
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Cellular RespirationA. Cellular Respiration takes sugar from
photosynthesis and uses oxygen to make energy(ATP) for the body.
B. Photosynthesis and respiration are complementary processes
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Cellular RespirationC. Overall Reaction
C6H12O6 + 6O2 6CO 2 + 6H2O + Energy
Energy = the ability to do work
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D. Cellular Respiration occurs in all living organisms (including plants and animals)