Photosynthesis in Higher Plants

Multiple Choice Questions

Advertisement
Zigya App

CO2 acceptor in C3 cycle is

  • OAA

  • RuBP

  • PEP

  • Malic acid

B.

RuBP

Primary carbon dioxide acceptor in C4 plant is phosphoenol pyruvic acid,it contains 3 carbon atoms. in C3 plants ribulose 1,5 bisphosphate (RUBP) is the primary CO2 acceptor. It is a 5 carbon compound. In C4 plants phospho enol pyruvate (PEP) is primary CO2 acceptor.

  • Switch
    • Advertisement

    Plants purify air by which process?

    • Photorespiration

    • Photosynthesis

    • Photophosphorylation

    • Transpiration

    Answer

    The order of occurrence of the cytochromes in the F1 particle is

    • cyt-b, cyt-c, cyt-a-cyt a3

    • cyt-c, cyt-b, cyt-a-cyt a3

    • cyt-a, cyt-b, cyt-c-cyt a3

    • cyt-a3, cyt-a, cyt-c-cyt b

    Answer

    From which of the following, photosynthetic autotrophs receive their energy?

    • Heat

    • Inorganic chemicals

    • Organic chemicals

    • Light

    Answer

    Which of the following is photophosphorylation?

    • Production of ATP from ADP

    • Production of NADP

    • Synthesis of ADP from ATP

    • Production of PGA

    Answer
    Advertisement

    Sunken stomata occur in

    • xerophytes

    • hydrophytes

    • mesophytes

    • opsanophytes

    Answer

    The first carbon dioxide fixation in C4 pathway occurs in chloroplasts of

    • guard cells

    • mesophyll cells

    • bundle sheath cells

    • epidermal cells

    Answer

    Photorespiration in C3 -plants starts from :

    • glycine

    • glycerate

    • phosphoglycolate

    • phosphoglycerate

    Answer

    Dimorphism of chloroplast is found in

    • C3 - plants

    • C4 - plants

    • CAM plants

    • Both (b) and (c)

    Answer
    Advertisement
    <

    Chemiosmotic theory of ATP synthesis, in the chloroplast and mitochondria, is based on :

    • proton gradient

    • membrane potential

    • accumulation of K ions

    • accumulation of Na ions

    Answer
    Advertisement