In C4 plants, photorespiration does not occur-

Who gave the law of limiting factors and when?
a. Lieman-1906
b. Blackman-1905
c. Lieman-1905
d. Blackman-1906

Light is a limiting factor for plants in shade-
a. as they do not get full sunlight
b. as they do not get at most 10 % of full sunlight
c. as they do not get at least 50 % of full sunlight
d. as they do not get at most 70% full sunlight

C3 plants show saturation at----- ul/L.
a. 450
b. 360
c. 400
d Both a and b

What is the major limiting factor for photosynthesis?
1. CO2
2. Water
3. Sunlight
4. Chlorophyll

Which of the following is wrong regarding photorespiration?
1. utilization of ATP
2. Production of little sugar
3. Release of CO₂
4. Wasteful Process

What kind of graph one will obtain if he observes CO2 fixation rates at low intensities?
a. Parabola
b. Linear
c. Circular
d. Hyperbola

At low light conditions, which plant responds to high CO2 conditions?
a. C3
b. C4
c. Neither
d. Both

At any point, the rate of photosynthesis is determined by the factor which is available at---------- levels.
a. optimal
b. higher than required
c. sub-optimal
d. won’t depend