PEPA, the first CO2 acceptor in C4 cycle is 3 – C compound

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
Answer : (c)

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

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

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
Answer: (a)

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

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
Answer : (d)

7.Photosynthesis is fastest in
(a) Blue light
(b) Sunlight
(c) Red light
(d) Green light
Answer : (b)

8.Photosynthesis is the fastest in
Blue light
Sun light
Red light
Green light
Answer: (b)

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
Answer: (b)

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

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

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

13.Photosystem II occurs in
(a) Stroma
(b) Cytochrome
(c) Grana
(d) Mitochondrial surface
Answer : (c)

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
Answer: (c)

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

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

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
Answer: (d)

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

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

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