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Photosynthesis in Higher Plants MCQs | Photosynthesis in Higher Plants Short Questions with Answers

(1) How many Calvin cycles form one hexose molecule
[A] 2
[B] 6
[C] 4
[D] 8
Answer: 6
(2) In a electron transport chain in terminal oxidation the cytochrome which donates electrons to O2 is
[A] Cytochrome b
[B] Cytochrome c
[C] Cytochrome a3
[D] Cytochrome a
Answer: Cytochrome a3
(3) In bacterial photosynthesis, the hydrogen donor is
[A] H2O
[B] H2SO4
[C] NH3
[D] H2S
Answer: H2S
(4) In blue-green algae photosystem-II contain an important pigment concerned with photolysis of water it is called
[A] B earotene
[B] Chlorophyll’ b’
[C] Cytochrome ‘c’
[D] Phycocyanin
Answer: Phycocyanin
(5) In C3 plants first stable product of photosynthesis during dark reactions is
[A] PGA
[B] PGAL
[C] RuBP
[D] Oxalo acetic acid
Answer: PGA
(6) In C4 pathway or C4 photosynthesis carbobn dioxide fication occures in chloroplast of
[A] Palisade tissue
[B] Spongy mesophyll
[C] Bundle sheath
[D] Guard cells
Answer: Spongy mesophyll
(7) In C3 plants first stable product of photosynthesis during dark reactions is
[A] PGA
[B] PGAL
[C] RuBP
[D] Oxalo acetic acid
Answer: PGA
(8) In C4 plants, Calvin cycle operates in
[A] Stroma of bundle sheath chloroplasts
[B] Grana of Bundle sheath chloroplasts
[C] Grana of mesophyll chloroplasts
[D] Stroma od mesophyll chloraplasts
Answer: Stroma of bundle sheath chloroplasts
(9) In C4 plants, initial carbondioxide fixation occurs on chloroplasts of
[A] Palisade tissue
[B] Spongy parnchyma
[C] Guard cells
[D] Hypodermis and chlorenchyma
Answer: Spongy parnchyma
(10) In C4 plants, synthesis of sugars/ final CO2 fixation occurs in
[A] Palisade cells
[B] Spongy cells
[C] Undifferentiated mesophyll cells
[D] Bundle sheath cells
Answer: Bundle sheath cells
(11) In case of C4 pathway
[A] CO2 combines with PGA
[B] CO2 combines with PEP
[C] CO2 first combines with RuBP
[D] CO2 combines with RMP
Answer: CO2 combines with PEP

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