Photosynthesis in Higher Plants MCQs | Photosynthesis in Higher Plants Multiple Choice Questions with Answers

(1) Oxygen containing carotenoids are
[A] Carotenes
[B] Xanthophylls
[C] Phycobilins
[D] Anthocyanins
Answer: Xanthophylls
(2) Oxygen liberated during photosynthesis comes from
[A] CO2
[B] Glucose
[C] H2O
[D] Fructose
Answer: H2O
(3) P700 is a special from of which pigment
[A] Chlorophyll-b
[B] Carotenes
[C] Chlorophyll-a
[D] Phycobilins
Answer: Chlorophyll-a
(4) Path of dark reaction of photosynthesis was traced through the use of
[A] 32P
[B] 14CO2
[C] 18O2
[D] X-rays
Answer: 14CO2
(5) In the calvin cycle, the assimilatory power is used during
[A] Formation of PGA
[B] Conversion of PGA to PGAL
[C] Formation of fructose 1-6 diphsophate from PGAL
[D] Formation of glucose from fructose – di- phosphate
Answer: Conversion of PGA to PGAL
(6) Unidirectional flow of e- in non-cyclic photophosphorylation is
[A] PS II — e- —> PS I — e- —> NADP — e- —> water
[B] Water — e- —> PSII — e- —> PS I — e- —> NADP
[C] PS I — e- —> NADP — e- —> water — e- —> PS II
[D] Water — e- —> PS I — e- —> PS II — e- —> NADP
Answer: Water — e- —> PSII — e- —> PS I — e- —> NADP
(7) Which is sensitive to longer wavelength of light?
[A] Photolysis
[B] PSI
[C] PS II
[D] Photophosphorylation
Answer: PSI
(8) Phytol tail is present at
[A] 3rd carbon of IInd ring
[B] 2nd carbon of IIIrd ring
[C] 7th carbon of IVth ring
[D] 3rd carbon of IVth ring
Answer: 3rd carbon of IVth ring
(9) Reduction of co-enzyme NADP depends on
[A] Reduction of CO2
[B] Evolution of O2
[C] Photolysis of water
[D] Formation of ATP
Answer: Photolysis of water
(10) Loculus is the internal space of
[A] Grana
[B] Stroma
[C] Thylakoid
[D] Quantasome
Answer: Thylakoid
(11) Calvins cycle involves
[A] Oxidative phosphorylation
[B] Oxidative carboxylation
[C] Reductive carboxylation
[D] Reductive phophorylation
Answer: Reductive carboxylation
(12) In C4 plants, carboxylation is twice, it can be represented as
[A] Pyruvic acid + CO2 malic acid + CO2
[B] RUDP + CO2 and pyruvic acid + CO2
[C] PEPA + CO2 and RUDP + CO2
[D] PEPA + CO2 and malic acid + CO2
Answer: PEPA + CO2 and RUDP + CO2
(13) In non-cyclic photophosphorylation, all the participants acts as electron donor and acceptor except
[A] Chl-a of PS I
[B] Chl-a of PS II
[C] NADP
[D] Both (A) and (B)
Answer: NADP
(14) Which of the following protist is a photoautotroph
[A] Thiobacillus
[B] Ferrobacillus
[C] Diatoms
[D] Chlorobium
Answer: Diatoms
(15) Photosynthesis occurs in
[A] Chloroplast
[B] Golgi body
[C] Endoplasmic reticulum
[D] Nucleus
Answer: Chloroplast
(16) The optimum temperature for photosynthesis is
[A] 25-35℃
[B] 10-15℃
[C] 35-40℃
[D] 20-25℃
Answer: 20-25℃
(17) Photorespiration occurs in
[A] Four cell organelles
[B] Two cell organelles
[C] One cell organelle
[D] Three cell organelle
Answer: Three cell organelle
(18) Reduction of NADP occurs in
[A] Oxidative photophosphorylation
[B] Cyclic photophosphorylation
[C] Non-cyclic photophosphorylation
[D] None
Answer: Non-cyclic photophosphorylation
(19) Kranz anatomy is found in the leaves of
[A] Wheat
[B] Mustard
[C] Potato
[D] Sugarcane
Answer: Sugarcane
(20) Peroxisomes are involved in which type of reactions
[A] Calvin cycle
[B] Glyoxylate cycle
[C] Glycolate cycle
[D] Bacterial photosynthesis
Answer: Glycolate cycle

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