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NEET UG Photosynthesis in Higher Plants — practice questions — page 3

Explore 100 free Photosynthesis in Higher Plants questions in NEET UG 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 61–90 of 100.

Who showed that sunlight is essential for plants to purify air fouled by burning candles?Read the answer and worked solution →Engelmann described the first action spectrum using which green alga?Read the answer and worked solution →In Engelmann's prism experiment, aerobic bacteria gathered mainly in which light regions?Read the answer and worked solution →Van Niel's hydrogen donor idea came from studies ofRead the answer and worked solution →When H2S is the hydrogen donor in green sulphur bacteria, the oxidation product isRead the answer and worked solution →In the balanced overall equation for making one glucose, how many water molecules are used as substrate?Read the answer and worked solution →The reactions that use ATP and NADPH but are not directly light driven are also calledRead the answer and worked solution →Paper chromatography shows that leaf colour comes from how many pigments?Read the answer and worked solution →Besides widening the usable wavelengths, accessory pigments protect chlorophyll a fromRead the answer and worked solution →Photosystems I and II are numbered according toRead the answer and worked solution →The reaction centre of each photosystem is formed by a single molecule ofRead the answer and worked solution →The water splitting complex of PS II sits on which side of the thylakoid membrane?Read the answer and worked solution →Splitting two water molecules gives one O2 molecule along with how many electrons?Read the answer and worked solution →Stroma lamellae membranes lack PS II and which enzyme?Read the answer and worked solution →Cyclic photophosphorylation also takes place when the only available light isRead the answer and worked solution →Which part of chloroplast ATP synthase changes shape to make ATP?Read the answer and worked solution →Melvin Calvin traced the path of carbon fixation in algae with which radioisotope?Read the answer and worked solution →Before RuBP was found, scientists searched for a CO2 acceptor with how many carbons?Read the answer and worked solution →The correct order of Calvin cycle stages isRead the answer and worked solution →A leaf fixes enough CO2 through the Calvin cycle to build two glucose molecules. How many ATP does it spend?Read the answer and worked solution →The German word Kranz, used for C4 leaf anatomy, meansRead the answer and worked solution →Bundle sheath cells in the leaves of C4 plants are characterised byRead the answer and worked solution →In C4 plants, the bundle sheath cells are rich in RuBisCO but lackRead the answer and worked solution →Which 4-carbon compounds made from OAA move into bundle sheath cells?Read the answer and worked solution →When RuBisCO binds O2 instead of CO2, the 2-carbon product formed isRead the answer and worked solution →Which statement correctly describes photorespiration?Read the answer and worked solution →Raising CO2 up to about what level can increase CO2 fixation before it turns damaging?Read the answer and worked solution →Under high light, C4 plants reach CO2 saturation at about how many microlitres per litre?Read the answer and worked solution →Which greenhouse crops are grown in CO2-enriched air to raise yields?Read the answer and worked solution →Which part of photosynthesis is most sensitive to temperature?Read the answer and worked solution →

Worked practice questions

Who showed that sunlight is essential for plants to purify air fouled by burning candles?

  1. Joseph Priestley
  2. Jan Ingenhousz
  3. Julius von Sachs
  4. T.W. Engelmann
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Correct answer: B. Jan Ingenhousz

Ingenhousz repeated Priestley's set-up once in the dark and once in sunlight and found that light was needed for the air to be restored.

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Engelmann described the first action spectrum using which green alga?

  1. Ulothrix
  2. Cladophora
  3. Spirogyra
  4. Chlamydomonas
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Correct answer: B. Cladophora

Engelmann lit Cladophora with prism-split light while it sat in a suspension of aerobic bacteria.

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In Engelmann's prism experiment, aerobic bacteria gathered mainly in which light regions?

  1. Yellow and orange
  2. Blue and red
  3. Violet and green
  4. Green and yellow
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Correct answer: B. Blue and red

Bacteria crowded where most oxygen was released, which was under blue and red light.

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