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• Preview
• Science Concepts
• Using Science Graphics
• Writing Skills

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1. What pigment causes a plant to look green?

• A. NADH
• B. NAPH
• C. carotenoid
• D. chlorophyll

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1. What pigment causes a plant to look green?

• A. NADH
• B. NAPH
• C. carotenoid
• D. chlorophyll

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2. What is the product of the electron transport
chain of photosynthesis?

• F. water
• G. glucose
• H. pyruvate
• J. ATP and NADPH

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2. What is the product of the electron transport
chain of photosynthesis?

• F. water
• G. glucose
• H. pyruvate
• J. ATP and NADPH

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3. The oxygen that is produced during
photosynthesis comes directly from the

• A. absorption of light.
• B. mitochondrial membranes.
• C. splitting of water molecules.
• D. splitting of carbon dioxide molecules.

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3. The oxygen that is produced during
photosynthesis comes directly from the

• A. absorption of light.
• B. mitochondrial membranes.
• C. splitting of water molecules.
• D. splitting of carbon dioxide molecules.

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Use the diagram of a chloroplast to answer the
following question.4. Which of the following
correctly identifies the structure marked X and
the activities that take place there?

• F. stroma-Calvin cycle
• G. thylakoid-Calvin cycle
• H. stroma-light reactions
• J. thylakoid-light reactions

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Use the diagram of a chloroplast to answer the
following question.4. Which of the following
correctly identifies the structure marked X and
the activities that take place there?

• F. stroma-Calvin cycle
• G. thylakoid-Calvin cycle
• H. stroma-light reactions
• J. thylakoid-light reactions

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5. Which of the following is not involved in the
aerobic part of cellular respiration?

• A. ATP
• B. glycolysis
• C. mitochondria
• D. the Krebs cycle

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5. Which of the following is not involved in the
aerobic part of cellular respiration?

• A. ATP
• B. glycolysis
• C. mitochondria
• D. the Krebs cycle

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6. Which of the following is not a product of the
Krebs cycle?

• F. CO2
• G. ATP
• H. FADH2
• J. ethyl alcohol

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6. Which of the following is not a product of the
Krebs cycle?

• F. CO2
• G. ATP
• H. FADH2
• J. ethyl alcohol

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The graph shows data on photosynthesis in one
type of plant. Use the graph and your knowledge
of science to answer the following question.7.
Which statement is supported by the data?

• A. Photosynthesis does not occur at 0 C.
• B. The rate of photosynthesis at 40 C is greater
  than the rate at 20 C.
• C. The optimum temperature for photosynthesis is
  approximately 46 C.
• D. The rate of photosynthesis increases as
  temperature increases from 25 C to 30 C.

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The graph shows data on photosynthesis in one
type of plant. Use the graph and your knowledge
of science to answer the following question.7.
Which statement is supported by the data?

• A. Photosynthesis does not occur at 0 C.
• B. The rate of photosynthesis at 40 C is greater
  than the rate at 20 C.
• C. The optimum temperature for photosynthesis is
  approximately 46 C.
• D. The rate of photosynthesis increases as
  temperature increases from 25 C to 30 C.

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8. The inner membrane of a mitochondrion is
folded. These folds are called christae. How
might cellular respiration be different if the
inner mitochondrial membrane were not folded?
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8. The inner membrane of a mitochondrion is
folded. These folds are called christae. How
might cellular respiration be different if the
inner mitochondrial membrane were not folded?

• The christae increase the surface area of the
  inner wall of the mitochondria, which allows more
  electron transport chain pathways and ATP
  synthase. Thus the rate of cellular respiration
  is increased.