Welcome to your Plant Physiology
2.
Seeds when soaked in water imbibe in it because
3.
In hot summer days, plant cooling is due to
4.
The hormone responsible for phototropism and geotropism is
5.
The production of starch and not glucose is often used as a measure of photosynthesis in leaves because
6.
A plant hormone for inducing Morphogenesis in plant tissue culture is
7.
Transpiration pull will be maximum under which of the following conditions?
8.
The space between the cell wall and plasma membrane in a plasmolysed cell is filled with
9.
Which of the following is not an effect of ethylene?
10.
Plants lose water by guttation when
12.
When a plant wilts, the sequence of events is as follows:
13.
The phytohormone that helps in the germination of seeds is
14.
Marine fish when thrown under tap water bursts because of
15.
A phytohormone existing in gaseous state is
16.
Water will be absorbed by the root hairs when:
17.
In the process of Osmosis in a cell:
18.
To increase sugar production in sugarcanes, they are sprayed with
19.
Osmosis involves diffusion of
20.
Internodal elongation is associated with
21.
If the rate of transpiration becomes more than the rate of photosynthesis, plants will
22.
The specific function of light energy in the process of photosynthesis is to
23.
When cell is fully turgid, which of the following will be zero?
26.
Compensation point means the condition
27.
The phytohormone that prevents the germination of seeds is
28.
Guttation is the elimination of excess of water from plants through
29.
The rate of photosynthesis is not affected by
30.
One of the synthetic auxin is
31.
Which would do maximum harm to a tree?
33.
Cell division in plants is promoted by
34.
A plant is kept in a dark cupbord for about 48 hours before conducting any experiment on photosynthesis to
35.
A plant hormone related with inhibition of senescence is
36.
A cell that lacks chloroplast does not
37.
Which of the following regulate closure of stomata?
38.
Process of endosmosis stops
39.
In the mechanism of opening and closing of stomata, the important factor is
40.
Which one of these reaction occurs during photosynthesis?
41.
Stomata open during the day and close at night because
42.
Which one of the following pairs is not correctly matched?
43.
Transpiration is very low during the storms due to
44.
Which one of the following would not be a limiting factor for photosynthesis?
45.
Positive geotropism is exhibited by
Superb