Which of the following plants are grown in green house by exploiting a fact that higher CO2 leads more productivity?
a. Tomatoes
b. Papaya
c. Cycas
d. Pomegranate

Water stress may cause which of the following?
a. Closure of stomata
b. Wilting of leaf
c. reducing metabolic activity
d. all of these

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

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

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

What is the major limiting factor for photosynthesis?
a. CO2
b. Water
c. Sunlight
d. Chlorophyll

Mark the odd one (with respect to internal factors affecting photosynthesis)

1. Amount of chlorophyll

2. Light intensity

3. Mesophyll cells

4. Orientation of leaves

Choose the correct labelling for given  figure

1. D-saturation point, E-Maximum photosynthesis.

2. A-achieved at high light intensity.

3. D-10% of total sunlight, E-Compensation point.

4. A-light saturation at 10% of total sunlight.

The rate of photosynthesis is important in determining-

Consider the following two statements:

1. Both statements are correct and II explains I

2. Both statements are incorrect

3. I is correct and II is incorrect

4. I is incorrect and II is correct