1.

    The enzyme responsible for the carboxylation of RuBP in the Calvin cycle is:

    A

    PEP carboxylase

    B

    RuBisCO

    C

    Hexokinase

    D

    Phosphofructokinase

    Question Tags
    📚 Subject:Botany
    📑 Chapter:Photosynthesis in Higher Plants
    🎯Topic:Dark Phase
    🎓 Ncert Level:Remembering
    🎯Difficulty :Easy
    ⚡ Time Required :0.5 mins
    🔄Ncert Concepts :dark reaction, Calvin cycle, RuBisCO

    Related Questions

    1.

    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

    2.

    In the Calvin cycle, for every three molecules of CO2CO_2 fixed, how many molecules of ATP and NADPH are required?

    A

    9 ATP and 6 NADPH

    B

    6 ATP and 9 NADPH

    C

    3 ATP and 2 NADPH

    D

    18 ATP and 12 NADPH

    Question Tags
    📚 Subject:Botany
    📑 Chapter:Photosynthesis in Higher Plants
    🎯Topic:Dark Phase
    PYQ YEAR: 2023
    🎓 Ncert Level:Application
    🎯Difficulty :Hard
    ⚡ Time Required :1 mins
    🔄Ncert Concepts :Photosynthesis, Calvin Cycle, ATP, NADPH

    3.

    Which of the following is maximum in chloroplast?

    A

    RuBP carboxylase

    B

    Hexokinase

    C

    Phosphatase

    D

    Nuclease

    Question Tags
    📚 Subject:Botany
    📑 Chapter:Photosynthesis in Higher Plants
    🎯Topic:Dark Phase
    🎓 Ncert Level:Remembering
    🎯Difficulty :Medium
    ⚡ Time Required :1 mins
    🔄Ncert Concepts :Enzymes, Chloroplast, Photosynthesis, RuBP carboxylase

    4.

    Which of the following is concerned with carbon dioxide fixation?

    A

    Krebs cycle

    B

    Calvin cycle

    C

    Ornithine cycle

    D

    Glycolysis

    Question Tags
    📚 Subject:Botany
    📑 Chapter:Photosynthesis in Higher Plants
    🎯Topic:Dark Phase
    🎓 Ncert Level:Remembering
    🎯Difficulty :Easy
    ⚡ Time Required :1 mins
    🔄Ncert Concepts :Carbon dioxide fixation, Photosynthesis, Cellular Respiration

    5.

    Photorespiration is the light dependent reaction in which utilisation of

    A

    Oxygen and release of H2O{H_2}O takes place

    B

    Oxygen and release of H+{H^ + } takes place

    C

    Oxygen and release of CO2C{O_2} takes place

    D

    Oxygen and release of ATP takes place

    Question Tags
    📚 Subject:Botany
    📑 Chapter:Photosynthesis in Higher Plants
    🎯Topic:Dark Phase
    🎓 Ncert Level:Remembering
    🎯Difficulty :Medium
    ⚡ Time Required :1 mins
    🔄Ncert Concepts :Photorespiration, Oxygen utilization, Carbon dioxide release

    6.

    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

    7.

    …A… plants have the higher temperature optimum than …B… the plants adapted climate

    Here A and B refer to

    A

    A refers to C4 plants and B refers to C3 plants.

    B

    A refers to C3 plants and B refers to C4 plants.

    C

    A refers to CAM plants and B refers to C4 plants.

    D

    A refers to C3 plants and B refers to CAM plants.

    Question Tags
    📚 Subject:Botany
    📑 Chapter:Photosynthesis in Higher Plants
    🎯Topic:Dark Phase
    🎓 Ncert Level:Understanding
    🎯Difficulty :Medium
    ⚡ Time Required :2 mins
    🔄Ncert Concepts :Temperature optima, plant adaptations, climate zones

    8.

    In an experiment, chloroplasts were made acidic by soaking them in acidic solution. What will happen if this chloroplast is transferred to a solution having basic pH?

    A

    ATP formation takes place

    B

    No ATP formation takes place

    C

    NAD formation takes place

    D

    Sugar formation takes place

    Question Tags
    📚 Subject:Botany
    📑 Chapter:Photosynthesis in Higher Plants
    🎯Topic:Dark Phase
    🎓 Ncert Level:Application
    🎯Difficulty :Medium
    ⚡ Time Required :2 mins
    🔄Ncert Concepts :Chemiosmosis, ATP synthesis, pH gradient, Photosynthesis

    9.

    Hexose monophosphate pathway takes place in

    A

    Endoplasmic reticulum

    B

    Cristae

    C

    Cytoplasm

    D

    Mitochondrial matrix

    Question Tags
    📚 Subject:Botany
    📑 Chapter:Photosynthesis in Higher Plants
    🎯Topic:Dark Phase
    🎓 Ncert Level:Remembering
    🎯Difficulty :Medium
    ⚡ Time Required :1 mins
    🔄Ncert Concepts :Cellular metabolism, Hexose monophosphate pathway, Cellular compartments

    10.

    To form one molecule of glyceraldehydes phosphate in Calvin cycle

    A

    9 ATP and 36 NADPH are required

    B

    6 ATP and 6 NADPH are required

    C

    3 ATP and 3 NADPH are required

    D

    9 ATP and 6 NADPH are required

    Question Tags
    📚 Subject:Botany
    📑 Chapter:Photosynthesis in Higher Plants
    🎯Topic:Dark Phase
    🎓 Ncert Level:Remembering
    🎯Difficulty :Medium
    ⚡ Time Required :2 mins
    🔄Ncert Concepts :Calvin Cycle, ATP, NADPH, Glyceraldehyde-3-phosphate

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