Start learning →

AP Intermediate 1st Year Photosynthesis in Higher Plants — practice questions

Explore 57 free Photosynthesis in Higher Plants questions in AP Intermediate 1st Year Biology. Open each question or exercise to read its content, reference answers and available explanation.

Practise Photosynthesis in Higher Plants with Quill →

Photosynthesis in Higher Plants questions and exercises with answers

Showing questions 1–30 of 57.

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 →In photosynthesis, the oxygen released into the atmosphere comes fromRead the answer and worked solution →Inside a leaf cell, photosynthesis is carried out inRead the answer and worked solution →Why do healthy leaves look green?Read the answer and worked solution →The molecular oxygen released during photosynthesis comes fromRead the answer and worked solution →Cyclic photophosphorylation differs from non-cyclic in that itRead the answer and worked solution →Per Mitchell's chemiosmotic hypothesis, ATP synthesis in chloroplasts is driven byRead the answer and worked solution →The enzyme RuBisCO catalyses the joining of CO₂ to which molecule?Read the answer and worked solution →To synthesise one molecule of glucose, the Calvin cycle must consumeRead the answer and worked solution →C3 plants are so named becauseRead the answer and worked solution →Kranz anatomy of C4 plants isRead the answer and worked solution →Blackman's law of limiting factors says thatRead the answer and worked solution →The MAIN photosynthetic pigment in green plants is:Read the answer and worked solution →Light reactions of photosynthesis occur in the:Read the answer and worked solution →In photosynthesis, the source of O2 released into the atmosphere is:Read the answer and worked solution →In the Z-scheme of photosynthesis, electrons flow:Read the answer and worked solution →In the Calvin cycle, CO2 is fixed by the enzyme:Read the answer and worked solution →The C4 pathway (Hatch-Slack) uses which enzyme for the initial CO2 fixation?Read the answer and worked solution →CAM plants (like cactus and pineapple) open their stomata mainly:Read the answer and worked solution →The colour of light LEAST absorbed by chlorophyll (and most reflected by leaves) is:Read the answer and worked solution →Chlorophyll-a primarily absorbs:Read the answer and worked solution →Carotenoids serve in photosynthesis as:Read the answer and worked solution →Photolysis of water occurs at:Read the answer and worked solution →ATP in light reactions is made by:Read the answer and worked solution →RuBisCO catalyses the addition of CO₂ to:Read the answer and worked solution →

Worked practice questions

Photosynthesis primarily occurs in which organelle?

  1. mitochondria
  2. ribosomes
  3. chloroplasts
  4. nucleus
Show answer and solution

Correct answer: C. chloroplasts

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

Open this question →

Chlorophyll absorbs light most strongly in

  1. green only
  2. blue and red regions
  3. yellow only
  4. UV only
Show answer and solution

Correct answer: B. blue and red regions

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

Open this question →

The Calvin cycle (dark reactions) occurs in

  1. thylakoid membranes
  2. stroma of chloroplasts
  3. mitochondria
  4. cell wall
Show answer and solution

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.

Open this question →

How to practise

  1. Choose a Photosynthesis in Higher Plants question and try to work out your answer.
  2. Open the question to check the correct answer and read its worked solution.
  3. Continue in the app for bite-sized lessons, explanations and review with Quill. You can start without creating an account.

Put it into practice

Continue with Photosynthesis in Higher Plants practice for AP Intermediate 1st Year. Read explanations as you go. No signup form needed to start.

Practise Photosynthesis in Higher Plants →

More Biology topics

The Living World & Biological ClassificationAnimal KingdomBody Fluids and CirculationBreathing and Exchange of GasesCell Cycle and Cell DivisionLocomotion and MovementNeural Control and Chemical CoordinationPlant Growth and Development