Welcome to your Plant Physiology
1.
Which one of the following pairs is not correctly matched?
2.
Transpiration pull will be maximum under which of the following conditions?
3.
The phytohormone that prevents the germination of seeds is
4.
When a plant wilts, the sequence of events is as follows:
5.
A plant hormone for inducing Morphogenesis in plant tissue culture is
6.
Which of the following regulate closure of stomata?
7.
Which one of these reaction occurs during photosynthesis?
9.
If the rate of transpiration becomes more than the rate of photosynthesis, plants will
10.
To increase sugar production in sugarcanes, they are sprayed with
11.
A plant is kept in a dark cupbord for about 48 hours before conducting any experiment on photosynthesis to
12.
In the process of Osmosis in a cell:
13.
In hot summer days, plant cooling is due to
15.
The phytohormone that helps in the germination of seeds is
16.
Osmosis involves diffusion of
17.
The specific function of light energy in the process of photosynthesis is to
18.
When cell is fully turgid, which of the following will be zero?
19.
A plant hormone related with inhibition of senescence is
20.
Water will be absorbed by the root hairs when:
21.
A phytohormone existing in gaseous state is
22.
Seeds when soaked in water imbibe in it because
23.
The production of starch and not glucose is often used as a measure of photosynthesis in leaves because
24.
The rate of photosynthesis is not affected by
25.
In the mechanism of opening and closing of stomata, the important factor is
26.
The space between the cell wall and plasma membrane in a plasmolysed cell is filled with
28.
Cell division in plants is promoted by
30.
Which of the following is not an effect of ethylene?
31.
Transpiration is very low during the storms due to
32.
Positive geotropism is exhibited by
33.
Which would do maximum harm to a tree?
34.
Which one of the following would not be a limiting factor for photosynthesis?
36.
The hormone responsible for phototropism and geotropism is
37.
A cell that lacks chloroplast does not
38.
Guttation is the elimination of excess of water from plants through
39.
Stomata open during the day and close at night because
40.
Internodal elongation is associated with
41.
Plants lose water by guttation when
42.
Marine fish when thrown under tap water bursts because of
43.
One of the synthetic auxin is
44.
Compensation point means the condition
45.
Process of endosmosis stops
Superb