Photosynthesis Questions: Paper - 09

Sr. No.

Questions

Answers

1.

PEPA, the first CO₂ acceptor in C₄ cycle is
(a) 5 – C compound
(b) 4 – C compound
(c) 3 – C compound
(d) 2 – C compound

2.

Photo-oxidation or photolysis of water (in photosynthesis ) occurs in association of
(a) Cytochrome B6
(b) Plastocyanin
(c) PSII
(d) PSI

3.

Photorespiration occurs in
(a) Mitochondria
(b) All living cells
(c) Green photosynthesis parts
(d)  Root

4.

Photosynthesis consists of essentially two biological reaction systems, one followed by the other, the second of these system does which of the following (CPMT 1988)
(a) Fixes CO₂
(b) Traps light energy
(c) Synthesizes starch
(d) Work only in the presence of light

5.

Photosynthesis is (JIPMER 1986; CPMT 1988, 90)
(a) Oxidative, exergonic, catabolic 
(b) Reductive, endergonic, anabolic
(c) Reductive, exergonic, anabolic 
(d) Reductive, endergonic, catabolic

6.

Photosynthesis is a  process in which
(a) ATP is generated
(b) NADH is reduced to NAD
(c) Oxidative phosphorylation occurs
(d) CO2 is reduced

7.

Photosynthesis is fastest in
(a) Blue light
(b) Sunlight
(c) Red light
(d) Green light

8.

Photosynthesis is the fastest in
Blue light
Sun light
Red light
Green light

9.

Photosynthetic bacteria and blue-green algae have molecular component of their light-receptor systems
(Delhi PMT 1991)
(a) Chloroplast
(b) Chromatophores
(c) Lamellae 
(d) Grana

10.

Photosynthetic phosphorylation is
(a) Oxidative process
(b) Photo process
(c) Both (a) and
(d) None of the above

11.

Photosynthetic pigments found in the chloroplasts occur in
(a) Thylakoid membranes
(b) Plastoglobules
(c) Matrix
(d) Chloroplasts envelope

12.

Photosynthetic pigments in chloroplast are embedded in membrane of (CBSE 1991)
(a) Thylakoids 
(b) Photoglobin
(c) Matrix   
(d) Envelopeof chloroplast

13.

Photosystem II occurs in
(a) Stroma
(b) Cytochrome
(c) Grana
(d) Mitochondrial surface

14.

Photosystem-I contains (BHU 1983; Rajasthan PMT 1987, 92)
(a) Chl a, Chl b, carotenoid and P680 
(b) Chl a, Chl b and P690
(c) Chl a, Chl b and P700 
(d) Chl a, xanthophyll and P700

15.

Pigment acting as a reaction centre during photosynthesis is
(a) Carotene
(b) Phytochrome
(c) P700
(d) Cytochrome

16.

Pigment system I performs independently
(a) Noncyclic photophosphorylation
(b) Cyclic photophosphorylation
(c) Oxidative phosphorylation
(d) Photolysis

17.

Pigment system-I receives radiant energy and releases electron (MP PMT 1992)
(a) Chlorophyll-683
(b) Chlorophyll-673
(c) Chlorophyll-695
(d) P-700

18.

Plants are known as purifiers of air due to process of
(MP PMT 1996)
(a) Respiration
(b) Photosynthesis
(c) Transpiration
(d) Desiccation

19.

PS II performs
(a) Reduction of CO₂
(b) Photolysis of water
(c) Liberation of energy
(d) Formation of water

20.

PS-I gets de-energised electrons from
(a) water
(b) Plastoquinone
(c) Plastocyanin
(d) Cytochrome f.