1.

    Dark reaction of Photosynthesis is called so because?

    A

    It can also occur in dark

    B

    Cannot occur during day

    C

    Occurs more rapidly at night

    D

    It does not require light

    Question Tags
    📚 Subject:Botany
    📑 Chapter:Photosynthesis in Higher Plants
    🎯Topic:Dark Phase
    🎓 Ncert Level:Understanding
    🎯Difficulty :Medium
    ⚡ Time Required :1 mins
    🔄Ncert Concepts :Photosynthesis, Dark Reaction, Light-Independent Reactions

    Related Questions

    1.

    Which of the following characteristics out of I, II, III, IV are exhibited by C4−{C_4} - plant?

    I. Kranz anatomy

    II. Oxaloacetic acid

    III. Large bundle sheath cells

    IV. Found only in desert area

    A

    I, II and III

    B

    I, II and IV

    C

    II, III and IV

    D

    III, I and IV

    Question Tags
    📚 Subject:Botany
    📑 Chapter:Photosynthesis in Higher Plants
    🎯Topic:Dark Phase
    🎓 Ncert Level:Understanding
    🎯Difficulty :Medium
    ⚡ Time Required :2 mins
    🔄Ncert Concepts :C4 photosynthesis, Kranz anatomy, Oxaloacetic acid, bundle sheath cells, plant adaptation

    2.

    If a plant utilizes PEP carboxylase for primary CO2\rm{CO_2} fixation, it is MOST likely adapted to which environment?

    A

    Hot and dry

    B

    Cold and wet

    C

    Shaded and humid

    D

    Aquatic

    Question Tags
    📚 Subject:Botany
    📑 Chapter:Photosynthesis in Higher Plants
    🎯Topic:Dark Phase
    PYQ YEAR: 2017
    🎓 Ncert Level:Application
    🎯Difficulty :Medium
    ⚡ Time Required :1 mins
    🔄Ncert Concepts :Photosynthesis, C4 pathway, Plant adaptations

    3.

    Carboxylation (C3−{C_3} - cycle) is the fixation of Co2C{o_2} into

    A

    Amino acid

    B

    Cholesterol ring

    C

    Proteins

    D

    Organic intermediate

    Question Tags
    📚 Subject:Botany
    📑 Chapter:Photosynthesis in Higher Plants
    🎯Topic:Dark Phase
    🎓 Ncert Level:Remembering
    🎯Difficulty :Medium
    ⚡ Time Required :1 mins
    🔄Ncert Concepts :photosynthesis, carbon fixation, C3 cycle, carboxylation, organic molecules

    4.

    Photorespiration could easily be detected in

    A

    C3−{C_3} - plants

    B

    C4−{C_4} - plants

    C

    Both (a) and (b)

    D

    None of these

    Question Tags
    📚 Subject:Botany
    📑 Chapter:Photosynthesis in Higher Plants
    🎯Topic:Dark Phase
    🎓 Ncert Level:Understanding
    🎯Difficulty :Easy
    ⚡ Time Required :2 mins
    🔄Ncert Concepts :Photorespiration, C3 plants, C4 plants

    5.

    Organelles associated with photorespiration are

    A

    Chloroplast, mitochondria, peroxisome

    B

    Chloroplast, mitochondria, lysosome

    C

    Mitochondria, peroxisome, centrosome

    D

    Nucleus, centrosome, peroxisome

    Question Tags
    📚 Subject:Botany
    📑 Chapter:Photosynthesis in Higher Plants
    🎯Topic:Dark Phase
    🎓 Ncert Level:Remembering
    🎯Difficulty :Easy
    ⚡ Time Required :2 mins
    🔄Ncert Concepts :photorespiration, organelles, chloroplast, mitochondria, peroxisome, lysosome, centrosome, nucleus

    6.

    If the light becomes unavailable during photosynthesis then

    A

    Immediately biosynthetic process stops

    B

    Biosynthetic phase does not stops

    C

    Biosynthetic phase stopes forever

    D

    Biosynthetic phase continues for some time and then stops

    Question Tags
    📚 Subject:Botany
    📑 Chapter:Photosynthesis in Higher Plants
    🎯Topic:Dark Phase
    🎓 Ncert Level:Understanding
    🎯Difficulty :Medium
    ⚡ Time Required :2 mins
    🔄Ncert Concepts :photosynthesis, light-dependent reactions, light-independent reactions, energy storage

    7.

    CO2C{O_2} released in bundle sheath is used in the

    A

    C4−{C_4} - cycle

    B

    C3−{C_3} - cycle

    C

    Respiration

    D

    Sugar break down processes

    Question Tags
    📚 Subject:Botany
    📑 Chapter:Photosynthesis in Higher Plants
    🎯Topic:Dark Phase
    🎓 Ncert Level:Remembering
    🎯Difficulty :Medium
    ⚡ Time Required :1 mins
    🔄Ncert Concepts :Photosynthesis, C3 cycle, C4 cycle, Bundle sheath cells

    8.

    Which enzyme in the Calvin cycle is directly responsible for incorporating CO2 into an organic molecule?

    A

    3-phosphoglycerate kinase

    B

    Glyceraldehyde 3-phosphate dehydrogenase

    C

    RuBisCO

    D

    Triose phosphate isomerase

    Question Tags
    📚 Subject:Botany
    📑 Chapter:Photosynthesis in Higher Plants
    🎯Topic:Dark Phase
    🎓 Ncert Level:Remembering
    🎯Difficulty :Hard
    ⚡ Time Required :0.5 mins
    🔄Ncert Concepts :Calvin Cycle, RuBisCO, Carbon Fixation

    9.

    Which of the following are essential inputs for the Calvin cycle, also known as the dark reaction of photosynthesis?

    A

    Light

    B

    Chlorophyll

    C

    CO2CO_2

    D

    ATP and NADPH

    Question Tags
    📚 Subject:Botany
    📑 Chapter:Photosynthesis in Higher Plants
    🎯Topic:Dark Phase
    PYQ YEAR: 2024
    🎓 Ncert Level:Understanding
    🎯Difficulty :Medium
    ⚡ Time Required :1 mins
    🔄Ncert Concepts :Photosynthesis, Dark Reaction, Calvin Cycle, ATP, NADPH

    10.

    Photorespiration could easily be detected in

    A

    C3−{C_3} - plants

    B

    C4−{C_4} - plants

    C

    Both (a) and (b)

    D

    None of these

    Question Tags
    📚 Subject:Botany
    📑 Chapter:Photosynthesis in Higher Plants
    🎯Topic:Dark Phase
    🎓 Ncert Level:Understanding
    🎯Difficulty :Easy
    ⚡ Time Required :2 mins
    🔄Ncert Concepts :Photorespiration, C3 plants, C4 plants

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