Cooperation of the two photosystems of the chloroplast is required for
(A) ATP synthesis
(B) reduction of NADP
(C) enhancement of dark reaction
(D) generation of protein motive force

Chemiosmotic theory of ATP synthesis in the chloroplasts and mitochondria is based on (a) Proton gradient (b) Accumulation of K+ ions (c) Accumulation of Na+ ions (d) Membrane potential

Chemiosmotic theory of ATP synthesis in the chloroplasts and mitochondria is based on (a) Proton gradient (b) Accumulation of K^(+) ions (c) Accumulation of Na^(2+) ions (d) Membrane potential

Consider the following statements regarding photosynthesis (A) ATP formation during photosynthesis is temed as photophosphorylation (B) Kranz anatomy pertains to leaf (C) Reduction of NADP^(+) to NADPH occurs during Calvin cycle (D) In a chlorophyll molecule mangesium is present in phytol tail

Stroma in the chloroplasts of higher plant contains (a) Chlorophyll (b) Light-dependent reaction enzymes (c) Light-independent reaction enzymes (d) Ribosomes

During cyclic photophosphorylation (1) Only PSI is functional. (2) The electron is circulated within the photosystem. (3) Grana lamellae is involved only. (4) Both ATP and NADPH+ H^(+) are synthesised. (a) (1) and (2) are incorrect (b) (3) and (4) are incorrect (c) (1) and (3) are correct (d) (2) and (4) are correct

(a) What is the reaction which a taking place ? (b) Give the function of acidified copper sulphate solution. (c) Give a reaction in which acetylene gas is prepared by synthesis reaction. (d) Compare the reaction of acetylene with bromine water and liquid bromine. (e) What happens when acetylene is heated in copper tube at 600^@C ?

The C_(4) plants are photosynthesis more efficient then C_(3) plant because (a) The CO_(2) efflux is not prevented (b) They have more chloroplasts (c) The CO_(2) compensation point is more. (d) CO_(2) generated during photorespiration is trapped and recycled through PEP carboxylase

Consider the following five statement ( A to E ) w.r.t. Chloroplast shown below. Select the correct option statin which ones . Are True ( T) and which ones are False ( F ) A. It is impermeable and lacks porins. B. it is selectively permeable having carrier proteins for transport. C. Stacked thylakoids one over other which is the site production of assimilatory power. D. Present between two grana and contains enzymes of dark reaction. E.It contains enzymes for the synthesis of sugar and proteins.

There is no alternation of generation in Escherichia coli because of the absence of (a) Syngamy (b) Reduction division (c) Conjugation (d) Both a & b

The entire process of photosynthesis consists of a number of reactions. Where in the cell do each of these take place ? (a) Synthesis of ATP and NADPH………. (b) Photolysis of water ………. ( c) fixation of CO_(2) …….. (d) Synthesis of sugar molecule ...... (e) Synthesis of starch......