Photosynthesis Questions: Paper - 05

Sr. No.

Questions

Answers

1.

A photosynthesizing plant is releasing ¹⁸O more than the normal. The plant must have been supplied with

(a) O₃

(b) H₂O with ¹⁸O

(c) CO₂ with ¹⁸O

(d) C₆H₁₂O₆ with ¹⁸O

2.

A plant is kept in 300 ppm CO₂ concentration. What will happen to it (Rajasthan PMT 1985)
(a) Plant will die soon 
(b) Plant will grow but will not die
(c) Plant will show normal photosynthesis 
(d) Respiration will be greatly decreased

3.

Activation radiation for photosynthesis are represented by wavelength of (CBSE 1996)
(a) 640-650 nm
(b) 600-950 nm
(c) 400-700 nm
(d) 340-450 nm

4.

Aganal chloroplasts occur in
(a) C₃ plants
(b) Hydrophytes
(c) C₄ Plants
(d) Succulents

5.

All plastids have essentially same structure because
(CBSE 1992)
(a) They have to perform same function 
(b) They are localized in aerial parts of plants
(c) All plastids store starch, lipid and proteins 
(d) One type of platid can be differentiated into another type of plastid depending on cell requirements

6.

Assimilatory power produced in hill reaction and used in Blackman’s reaction refers to
(a) Generation of ATP and NADPH₂
(b) Reduction of CO₂
(c) Splitting of water
(d) Disintegration of plastids

7.

Which wavelength of light carries out photosynthesis in bacteria (Rajasthan PMT 1985)
(a) Ultraviolet light  
(b) Blue
(c) Red 
(d) Far red

8.

ATP is a source of energy for
(a) Light reaction in C4 plants
(b) Photophosphorylation
(c) Biochemical reactions
(d) Photolysis of water

9.

Bacterial photosynthesis contains
(a) PSI
(b) PSII
(c) Both PSI and PSII
(d) None of them

10.

Bacteriochlorophyll differs from chlorophyll ‘a’ in having (CPMT 1989)
(a) One pyrrol with one hydrogen 
(b) One pyrrol with two hydrogen
(c) One pyrrol with three hydrogen
(d) One pyrrol with four hydrogen

11.

Besides water and light, which is more essential as a raw material for food formation (BHU 1979)
(a) O2 
(b) CO2
(c) Mineral salts
(d) NAD

12.

Both respiration and photosynthesis require
(a) Sunlight
(b) Green cells
(c) cytochromes
(d) Organic substrate

13.

C4 cycle was discovered by
(a) Hill
(b) Calvin
(c) Hatch and slack
(d) Blackman

14.

C4 plants are adapted to (AIIMS 1984)
(a) Hot ad dry climate 
(b) Temperate climate
(c) Cold and dry climate 
(d) Hot and humid climate

15.

C₄ plants belong to
(a) Gramineae
(b) Monocots
(c) Dicots
(d) Both monocots and Dicots

16.

Calvin cycle occurs in (MP PMT 1996)
(a) Chloroplast
(b) Cytoplasm
(c) Mitochondria
(d) Glyoxysomes

17.

Calvin cycle occurs in (BHU 1983)
(a) Chloroplasts
(b) Cytoplasm
(c) Mitochondria
(d) Glyoxysomes

18.

Calvin’s cycle is found in (Raj. PMT 1997)
(a) Only C3 plants 
(b) Only photosynthetic plants
(c) All C4 plants 
(d) All photosynthetic plants

19.

CAM photosynthesis occurs in plants with
(MP PMT 1993)
(a) Thin green leaves with reticulate venation 
(b) Thin green leaves with parallel venation
(c) Fleshy green leaves 
(d) Thin coloured leaves

20.

Carbon dioxide is fixed in (MP PMT 1999)
(a) Light reaction
(b) Dark reaction
(c) Aerobic respiration
(d) Anaerobic respiration