Photosynthesis in Higher Plants (Class - XI)

Photosynthesis in Higher Plants

15 Questions Published

Questions

Question 1 Multiple Choice (Single Answer)

The experiments of which of the following scientists showed that small bubbles were formed around green parts in bright sunlight, while in the dark, they did not?

  1. Joseph Priestley
  2. Julius von Sachs
  3. T. W. Engelmann
  4. Jan Ingenhousz
  5. Cornelius van Niel
Question 2 Multiple Choice (Single Answer)

In chloroplasts, there is a membranous system. Which of the following is/are not a part of this membranous system?

a. Grana
b. Starch granule
c. Stroma lamellae

  1. Only a
  2. Only a and b
  3. Only b
  4. Only b and c
  5. Only c
Question 3 Multiple Choice (Single Answer)

Which of the following statements is/are false?

a. The substances that have an ability to absorb light at specific wavelengths are called pigments.
b. The membrane system is responsible for the synthesis of ATP and NADPH.
c. Most of the photosynthesis takes place in the yellow and green regions of the spectrum.

  1. Only a
  2. Only a and b
  3. Only b
  4. Only b and c
  5. Only c
Question 4 Multiple Choice (Single Answer)

In photosynthesis, the proton accumulation is in the

  1. lumen
  2. ribosome
  3. mitochondria
  4. vacuole
  5. cytoplasm
Question 5 Multiple Choice (Single Answer)

In which of the following parts of a cell is ATP synthesised?

a. Ribosome
b. Mitochondria
c. Chloroplast
d. Nucleus

  1. Only a and b
  2. Only a and c
  3. Only a and d
  4. Only b and d
  5. Only b and c
Question 6 Multiple Choice (Single Answer)

Which of the following is the major pigment responsible for trapping light for photosynthesis?

  1. Chlorophyll b
  2. Xanthophylls
  3. Chlorophyll a
  4. Carotenoids
  5. None of these
Question 7 Multiple Choice (Single Answer)

Which of the following is not a characteristic of C4 plants?

  1. C4 plants show a response to high light intensities.
  2. C4 plants lack a process called photorespiration.
  3. C4 plants have a special type of leaf anatomy.
  4. C4 plants cannot tolerate higher temperatures.
  5. C4 plants have greater productivity of biomass.
Question 8 Multiple Choice (Single Answer)

Which of the following products of light reaction is/are used to drive the processes leading to the synthesis of sugars?

a. Oxygen
b. ATP
c. NADPH

  1. Only a
  2. Only a and b
  3. Only b
  4. Only b and c
  5. Only c
Question 9 Multiple Choice (Single Answer)

Which of the following is/are not internal factor(s) that affect(s) photosynthesis?

  1. Orientation of leaves
  2. Mesophyll cells and chloroplast
  3. Amount of chlorophyll
  4. Carbon dioxide concentration
  5. Number of leaves
Question 10 Multiple Choice (Single Answer)

Which of the following statements is/are false?

a. In carbon fixation cycle, carbon dioxide is added by ATPase enzyme to a 5-carbon compound RuBP.
b. Light harvesting complexes are made up of hundreds of pigment molecules bound to proteins.
c. The enzyme NADP reductase is located on the stroma side of the membrane.

  1. Only a
  2. Only a and b
  3. Only b
  4. Only b and c
  5. Only c
Question 11 Multiple Choice (Single Answer)

The large cells around the vascular bundles of the C4 pathway plants are called bundle sheath cells. Which of the following is/are not characteristic(s) of bundle sheath cells?

a. No intercellular spaces
b. Thick walls impervious to gaseous exchange
c. Very less number of chloroplasts

  1. Only a
  2. Only a and b
  3. Only b
  4. Only b and c
  5. Only c
Question 12 Multiple Choice (Single Answer)

Match the following

a. Carboxylation phase 1. During this phase, carbohydrate is formed at the expense of the photochemically made ATP and NADPH.
b. Reduction phase 2. During this phase, CO2 combines with ribulose-1,5-bisphosphate.
c. Regeneration phase 3. During this phase, the CO2 acceptor ribulose-1,5-bisphosphate is formed again, so that the cycle continues.
  1. a - 3, b - 1, c - 2
  2. a - 2, b - 1, c - 3
  3. a - 1, b - 2, c - 3
  4. a - 3, b - 2, c - 1
  5. a - 2, b - 3, c - 1
Question 13 Multiple Choice (Single Answer)

Which scientist gave the "Law of Limiting Factors" in 1905?

  1. Joseph Priestley
  2. Jan Ingenhousz
  3. Julius von Sachs
  4. T. W. Engelmann
  5. Blackman
Question 14 Multiple Choice (Single Answer)

Match the following:

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Name of the pigments Colour
a. Chlorophyll a 1. Yellow-green
b. Chlorophyll b 2. Yellow
c. Xanthophylls 3. Bright or blue-green in the chromatogram
  1. a - 3, b - 1, c - 2
  2. a - 3, b - 2, c - 1
  3. a - 1, b - 2, c - 3
  4. a - 1, b - 3, c - 2
  5. a - 2, b - 1, c - 3
Question 15 Multiple Choice (Single Answer)

Which of the following is not included in light reactions or in the 'photochemical' phase?

  1. Water splitting
  2. Formation of high-energy NADPH
  3. Light absorption
  4. Release of ATP
  5. Oxygen release