1.

    A scientist isolates chloroplasts and provides them with 14CO2^{14}CO_2 in the dark. After a brief period, the 14C^{14}C is found predominantly in:

    A

    RuBP

    B

    3-PGA

    C

    Glucose

    D

    Triose phosphate

    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, Dark Reactions

    Related Questions

    1.

    Stroma in the chloroplasts of higher plants contain

    A

    Light-independent reaction enzymes

    B

    Light-dependent reaction enzymes

    C

    Ribosomes

    D

    Chlorophyll

    Question Tags
    📚 Subject:Botany
    📑 Chapter:Photosynthesis in Higher Plants
    🎯Topic:Dark Phase
    🎓 Ncert Level:Remembering
    🎯Difficulty :Easy
    ⚡ Time Required :1 mins
    🔄Ncert Concepts :chloroplast structure, photosynthesis, light-dependent reactions, light-independent reactions

    2.

    Every CO2C{O_2} molecule entering the Calvin cycle needs

    A

    2 molecule of NADPH and 3 molecule of ATP for its fixation

    B

    2 molecule of NADPH and 2 molecule of ATP for its fixation

    C

    Variable amount of ATP

    D

    Only NADPH

    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, photosynthesis, ATP, NADPH, carbon fixation

    3.

    PGA, the first carbon dioxide fixation product was firstly discovered in

    A

    Chlorella

    B

    Scenedesmus

    C

    Spinach

    D

    Maize

    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, PGA, Plant evolution

    4.

    Kranz anatomy is the characteristics of

    A

    C5−{C_5} - plants

    B

    C3−{C_3} - plants

    C

    C2−{C_2} - plants

    D

    C4−{C_4} - plants

    Question Tags
    📚 Subject:Botany
    📑 Chapter:Photosynthesis in Higher Plants
    🎯Topic:Dark Phase
    🎓 Ncert Level:Remembering
    🎯Difficulty :Medium
    ⚡ Time Required :1 mins
    🔄Ncert Concepts :Kranz anatomy, C4 plants, Photosynthesis

    5.

    The enzyme responsible for fixing CO2\rm{CO_2} to PEP in C4 plants is:

    A

    RuBisCORuBisCO

    B

    PEPcarboxylasePEP carboxylase

    C

    ATPsynthaseATP synthase

    D

    NADPreductaseNADP reductase

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

    6.

    RUBP is?

    A

    First stable compound in PCR cycle

    B

    Substrate for reduction phase

    C

    Last compound of carboxylation phase

    D

    Primary CO2C{O_2} acceptor of RPP cycle

    Question Tags
    📚 Subject:Botany
    📑 Chapter:Photosynthesis in Higher Plants
    🎯Topic:Dark Phase
    🎓 Ncert Level:Remembering
    🎯Difficulty :Medium
    ⚡ Time Required :2 mins
    🔄Ncert Concepts :Photosynthesis, Calvin Cycle, Carbon Fixation, RuBP

    7.

    ATP synthesised by cells in

    I. chloroplast II. Mitochondria

    III. Golgi body

    Select the correct option

    A

    I and III

    B

    I and II

    C

    II and III

    D

    I, II and III

    Question Tags
    📚 Subject:Botany
    📑 Chapter:Photosynthesis in Higher Plants
    🎯Topic:Dark Phase
    🎓 Ncert Level:Remembering
    🎯Difficulty :Easy
    ⚡ Time Required :1 mins
    🔄Ncert Concepts :ATP synthesis, chloroplast, mitochondria, Golgi body

    8.

    Generally, plants adapted to dry tropical conditions have

    A

    C2{C_2} pathway

    B

    C3{C_3} pathway

    C

    C5{C_5} pathway

    D

    C4{C_4} pathway

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

    9.

    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

    10.

    In CAM-plants, carbon dioxide acceptor is

    A

    RuBP

    B

    PEP

    C

    OAA

    D

    PGA

    Question Tags
    📚 Subject:Botany
    📑 Chapter:Photosynthesis in Higher Plants
    🎯Topic:Dark Phase
    🎓 Ncert Level:Remembering
    🎯Difficulty :Easy
    ⚡ Time Required :1 mins
    🔄Ncert Concepts :CAM pathway, carbon fixation, PEP carboxylase

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