Photosynthesis

The O₂ released during photosynthesis comes from   .

• CO₂
• H₂O
• NADPH
• RuBP

Which of the following is an important difference between light-dependent and light-independent reactions of photosynthesis?

• The light-dependent reactions occur only during the day; the light-independent reactions occur only during the night.
• The light-dependent reactions occur in the cytoplasm; the light-independent reactions occur in chloroplasts.
• The light-dependent reactions utilize CO₂ and H₂O; the light-independent reactions produce CO₂ and H₂O.
• The light-dependent reactions produce ATP and NADPH₂; the light-independent reactions use energy stored in ATP and NADPH.

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NGSS.HS-LS1-5

The single, flattened structure is called a

• Stroma
• Pigment
• Thylakoid
• Chloroplast

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NGSS.HS-LS1-5

The end products of the light-dependent reactions of photosynthesis are   .

• ADP, H₂O, NADPH₂
• ADP, PGAL, RuBP 
• ATP, CO₂, H₂O
• ATP, NADPH₂, O₂

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NGSS.HS-LS1-5

The diagram shows photosystems II and I. What is a major event that occurs when matter and energy moves through photosystem II?

• ATP is synthesized
• Water molecules are split
• Chlorophyll is produced
• CO₂ is used

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NGSS.HS-LS1-5

The most important role of pigments in photosynthesis is to _____.

• capture light energy
• screen out harmful ultraviolet rays
• store energy in glucose molecules
•  release energy from glucose molecules

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NGSS.HS-LS1-5

Chlorophyll molecules are in which part of the chloroplast?

• grana stacks
• stroma
• stomata
• plasma membrane

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NGSS.HS-LS1-5

  Light reactions do all of the following EXCEPT _____.

• convert sunlight to chemical energy
• synthesize ATP and NADPH₂
• reduce CO₂
• convey excited electrons from chlorophyll to an electron acceptor (NADPH₂)

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NGSS.HS-LS1-5

The energy required to run the light-independent reactions of photosynthesis comes from which two substances produced during the light-dependent reactions?

• ATP and NADPH₂
• ADP and PO₄
• H⁺ and O₂
• O₂ and ATP

What is an end product of this reaction?

• Chlorophyll A and B
• H₂O
• CO₂
• A glucose molecule

Tags

NGSS.HS-LS1-5

NGSS.HS-LS2-5