In C₄ plants, photorespiration does not occur-
1. They have different RuBisCO.
2. They have no RuBisCO.
3. They have mechanism to increase the concentration of CO₂
4. They cannot utilize ATP

The rate of photosynthesis is important in determining-
1. Height of plant
2. Girth of Plant
3. Yield of Plant
4. Growth of plant

At any point, the rate of photosynthesis is determined by the factor which is available at---------- levels.
1. optimal
2. higher than required
3. sub-optimal
4. won’t depend

Who gave the law of limiting factors and when?
1. Lieman-1906
2. Blackman-1905
3. Lieman-1905
4. Blackman-1906

Light is a limiting factor for plants in shade-
1. as they do not get full sunlight
2. as they do not get at most 10 % of full sunlight
3. as they do not get at least 50 % of full sunlight
4. as they do not get at most 70% full sunlight

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

At low light conditions, which plant responds to high CO₂ conditions?
1. C₃
2. C₄
3. Neither
4. Both

Which plants show saturation at 360 ul/L?
1.C₃
2. C₄
3. C₂
4. Both 1 and 2

Which of the following plants are grown in green house by exploiting a fact that higher CO₂ leads more productivity?
1. Tomatoes
2. Papaya
3. Cycas
4. Pomegranate

Temperature will affect which process more sensitively?
1. Dark process
2. Non Cyclic Process
3. Cyclic Process
4. Splitting of water