Welcome to your Plant Physiology
1.
Cell division in plants is promoted by
2.
Transpiration is very low during the storms due to
3.
A cell that lacks chloroplast does not
5.
If the rate of transpiration becomes more than the rate of photosynthesis, plants will
6.
In hot summer days, plant cooling is due to
7.
Transpiration pull will be maximum under which of the following conditions?
8.
The rate of photosynthesis is not affected by
10.
The production of starch and not glucose is often used as a measure of photosynthesis in leaves because
11.
In the process of Osmosis in a cell:
12.
Osmosis involves diffusion of
13.
When a plant wilts, the sequence of events is as follows:
14.
Positive geotropism is exhibited by
15.
Plants lose water by guttation when
16.
Guttation is the elimination of excess of water from plants through
17.
Seeds when soaked in water imbibe in it because
18.
In the mechanism of opening and closing of stomata, the important factor is
19.
When cell is fully turgid, which of the following will be zero?
20.
Marine fish when thrown under tap water bursts because of
21.
Which one of these reaction occurs during photosynthesis?
22.
A phytohormone existing in gaseous state is
23.
Which of the following regulate closure of stomata?
24.
A plant hormone for inducing Morphogenesis in plant tissue culture is
25.
Which of the following is not an effect of ethylene?
26.
One of the synthetic auxin is
27.
Which one of the following pairs is not correctly matched?
28.
Stomata open during the day and close at night because
29.
Compensation point means the condition
30.
The phytohormone that helps in the germination of seeds is
31.
A plant hormone related with inhibition of senescence is
32.
Water will be absorbed by the root hairs when:
33.
Internodal elongation is associated with
34.
The specific function of light energy in the process of photosynthesis is to
36.
A plant is kept in a dark cupbord for about 48 hours before conducting any experiment on photosynthesis to
38.
The space between the cell wall and plasma membrane in a plasmolysed cell is filled with
39.
The hormone responsible for phototropism and geotropism is
40.
Process of endosmosis stops
41.
Which one of the following would not be a limiting factor for photosynthesis?
42.
To increase sugar production in sugarcanes, they are sprayed with
43.
The phytohormone that prevents the germination of seeds is
45.
Which would do maximum harm to a tree?
