stroma
Lamellae membrane lacks
(A) PS I only
(B) PS I only
(C) PSI
and electron carriers
(D) Ps I and NADP reductace
Answers
Answer:
psi only
Explanation:
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Answer:
Read the following four statements, A, B, C and D and select the right option having both correct statements.
Statement :
(A) Z scheme of light reaction takes place in presence of PS-I only.
(B) Only PS-I is functional in cyclic photophosphorylaiton.
(C) Cyclic photophosphorylation results into synthesis of ATP and NADPH
2
.
(D) Stroma lamellae lack PS-II as well as NADP.
October 15, 2019
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Priyanshi Krish
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ANSWER
Z scheme of light reaction is noncyclic flow of an electron from PSII through quinone, cyt b
6
f complex and plastocyanin to NADPH via PSI;it includes both PSI and PSII. In cyclic photophosphorylation, electrons are passed from P700 of PS-I via electron transfer chain to back to P700 with the formation of ATP. It does not include PS II. Electrons are not passed to NADP reductase; no NADPH
2
is formed. Stroma lamellae lack PS II as well as NADP reductase enzyme while grana lamellae have both PS I and PS II. Thus, the correct answer is option B.
Explanation: