1.

    If a plant is exposed to 14CO2^{14}CO_2 in the dark and then transferred to light, the 14C^{14}C label will appear first in which of the following carbohydrates?

    A

    Starch

    B

    Sucrose

    C

    Triose phosphates (glyceraldehyde-3-phosphate and dihydroxyacetone phosphate)

    D

    Fructose-1,6-bisphosphate

    Question Tags
    📚 Subject:Botany
    📑 Chapter:Photosynthesis in Higher Plants
    🎯Topic:Dark Phase
    🎓 Ncert Level:Application
    🎯Difficulty :Hard
    ⚡ Time Required :1 mins
    🔄Ncert Concepts :Calvin Cycle, Carbon Fixation, Carbohydrate Synthesis

    Related Questions

    1.

    Photorespiration is also called

    I. Glycolate pathway

    II. C3−{C_3} - cycle

    III. Oxidative photosynthetic carbon cycle

    Select the correct option

    A

    I and II

    B

    II and III

    C

    III and I

    D

    I, II and III

    Question Tags
    📚 Subject:Botany
    📑 Chapter:Photosynthesis in Higher Plants
    🎯Topic:Dark Phase
    🎓 Ncert Level:Remembering
    🎯Difficulty :Easy
    ⚡ Time Required :2 mins
    🔄Ncert Concepts :Photorespiration, Glycolate pathway, C3 cycle, Oxidative photosynthetic carbon cycle

    2.

    In C3{C_3}-plants, the first stable compound formed after carbon dioxide fixation is

    A

    Phosphoglyceraldehyde

    B

    Malic acid

    C

    Oxaloacetic acid

    D

    3-phosphoglycerate

    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

    3.

    The first stable product formed after CO2 fixation in the C3 cycle is:

    A

    RuBP

    B

    3-PGA

    C

    G3P

    D

    Glucose

    Question Tags
    📚 Subject:Botany
    📑 Chapter:Photosynthesis in Higher Plants
    🎯Topic:Dark Phase
    🎓 Ncert Level:Remembering
    🎯Difficulty :Medium
    ⚡ Time Required :0.5 mins
    🔄Ncert Concepts :Dark Phase, Calvin Cycle, C3 Cycle, Carbon Fixation, RuBisCO

    4.

    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

    5.

    In C3{C_3} plants, the first stable product of photosynthesis during dark reaction is

    A

    PGAL

    B

    RuBP

    C

    PGA

    D

    OAA

    Question Tags
    📚 Subject:Botany
    📑 Chapter:Photosynthesis in Higher Plants
    🎯Topic:Dark Phase
    🎓 Ncert Level:Remembering
    🎯Difficulty :Easy
    ⚡ Time Required :1 mins
    🔄Ncert Concepts :Photosynthesis, C3 cycle, Carbon fixation, Calvin cycle

    6.

    I. Initial CO2C{O_2} acceptor

    II. Extent of photorespiration

    III. Enzyme catalysing reaction that fixes CO2C{O_2}

    IV. Presence of Calvin cycle

    V. Leaf anatomy

    Which one does not differ in a C3{C_3} and C4−{C_4} - plants?

    A

    I and V

    B

    Only IV

    C

    II and III

    D

    Only II

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

    7.

    Photorespiration is also called

    I. Glycolate pathway

    II. C3−{C_3} - cycle

    III. Oxidative photosynthetic carbon cycle

    Select the correct option

    A

    I and II

    B

    II and III

    C

    III and I

    D

    I, II and III

    Question Tags
    📚 Subject:Botany
    📑 Chapter:Photosynthesis in Higher Plants
    🎯Topic:Dark Phase
    🎓 Ncert Level:Understanding
    🎯Difficulty :Easy
    ⚡ Time Required :2 mins
    🔄Ncert Concepts :photorespiration, glycolate pathway, C3 cycle, oxidative photosynthetic carbon cycle

    8.

    The primary CO2C{O_2} acceptor molecule in C3{C_3} cycle is a

    A

    3-carbon aldose sugar

    B

    5-carbon ketose sugar

    C

    3-carbon ketose sugar

    D

    5-carbon aldose sugar

    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, Carbon fixation, Ribulose-1, 5-bisphosphate (RuBP)

    9.

    I. Initial CO2C{O_2} acceptor

    II. Extent of photorespiration

    III. Enzyme catalysing reaction that fixes CO2C{O_2}

    IV. Presence of Calvin cycle

    V. Leaf anatomy

    Which one does not differ in a C3{C_3} and C4−{C_4} - plants?

    A

    I and V

    B

    Only IV

    C

    II and III

    D

    Only II

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

    10.

    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, C3 cycle, Carbon fixation

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