"Kranz anatomy" is present in
1. All photosynthetic plants
2. Only C3 plants
3. Only succulent plants
4. Only C4 plants
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyWhere exactly is, the PEP case found?
a. Only Mesophyll cells
b. Bundle Sheath cells
c. both a and b
d. Passage cells
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyIn the diagrammatic representation of the Hatch and Slack pathway, A and B respectively represent:
1. Mesophyll cells and Bundle sheath cells
2. Bundle sheath cells and Mesophyll cells
3. Bundle sheath cells and Palisade cells
4. Mesophyll cells and Guard cells
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyPhosphoenol pyruvate (PEP) is the primary CO2 acceptor in
(1) C3 -plants
(2) C4 -plants
(3) C2 -plants
(4) C3 and C4 -plants
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyThe step of decarboxylation during C4 cycle occurs in:
a. Only Mesophyll cells
b. Bundle Sheath cells
c. both a and b
d. Passage cells
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyWith reference to factors affecting the rate of photosynthesis, which of the following statements is not correct?
(1) Light saturation for CO2-fixation occurs at 10% of full sunlight.
(2) Increasing atmospheric CO2 concentration upto 0.05% can enhance the CO2-fixation rate
(3) C3 plants respond to higher temperature with enhanced photosynthesis, while C4 plants have a much lower temperature optimum.
(4) Tomato is a greenhouse crop, which can be grown in a CO2-enriched atmosphere for higher yield.
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyThe first carbon dioxide fixation product of C4 plant is
(1) Oxaloacetic acid
(2) ribulose biphosphate
(3) phosphoenol pyruvate
(4) phosphoglyceric acid.
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologySelect the incorrect match from the following
1. One Calvin cycle – Requires 3 ATP and 2 NADPH
2. plant – Shows slower process of carbon fixation
3. plants – 20-25°C is optimum for photosynthesis
4. Hatch and Slack – Primary acceptor pathway is phosphoenolpyruvate
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyWhat is incorrect about bundle sheath cells-
a. Multilayered
b. large number of chloroplasts
c. Intercellular spaces
d. Thick walls
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyIn C plants CO are reduced into sugar is :
1. Mesophyll cells
2. In bundle sheath cells
3. In spongy parenchyma
4. Both A & B
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & Biology