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B.Sc Microbiology Photosynthesis in Higher Plants — practice questions

Explore 8 free Photosynthesis in Higher Plants questions in B.Sc Microbiology Biology. Open each question or exercise to read its content, reference answers and available explanation.

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Photosynthesis in Higher Plants questions and exercises with answers

Showing questions 1–8 of 8.

Photosynthesis primarily occurs in which organelle?Read the answer and worked solution →Chlorophyll absorbs light most strongly inRead the answer and worked solution →The Calvin cycle (dark reactions) occurs inRead the answer and worked solution →The oxygen released during photosynthesis comes fromRead the answer and worked solution →The enzyme that fixes CO₂ in the Calvin cycle isRead the answer and worked solution →The first stable product of CO₂ fixation in C4 plants isRead the answer and worked solution →Photosynthesis in outlineRead the answer and worked solution →Taken in or given out?Read the answer and worked solution →

Worked practice questions

Photosynthesis primarily occurs in which organelle?

  1. mitochondria
  2. ribosomes
  3. chloroplasts
  4. nucleus
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Correct answer: C. chloroplasts

Chloroplasts — light reactions on thylakoid membranes carbon fixation in the surrounding stroma.

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Chlorophyll absorbs light most strongly in

  1. green only
  2. blue and red regions
  3. yellow only
  4. UV only
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Correct answer: B. blue and red regions

Peak absorbance near 430 nm (blue) and 660 nm (red). Green is reflected — why leaves look green.

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The Calvin cycle (dark reactions) occurs in

  1. thylakoid membranes
  2. stroma of chloroplasts
  3. mitochondria
  4. cell wall
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Correct answer: B. stroma of chloroplasts

Calvin cycle runs in the stroma — the fluid around the thylakoid stacks. Uses ATP and NADPH from the light reactions.

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