Welcome to your Plant Physiology
1.
When cell is fully turgid, which of the following will be zero?
2.
The space between the cell wall and plasma membrane in a plasmolysed cell is filled with
3.
Transpiration is very low during the storms due to
4.
To increase sugar production in sugarcanes, they are sprayed with
5.
A plant hormone related with inhibition of senescence is
6.
The phytohormone that prevents the germination of seeds is
7.
A phytohormone existing in gaseous state is
8.
Plants lose water by guttation when
9.
Internodal elongation is associated with
10.
Which one of these reaction occurs during photosynthesis?
11.
In hot summer days, plant cooling is due to
12.
The hormone responsible for phototropism and geotropism is
13.
Which of the following regulate closure of stomata?
14.
Seeds when soaked in water imbibe in it because
15.
When a plant wilts, the sequence of events is as follows:
16.
Which would do maximum harm to a tree?
17.
Osmosis involves diffusion of
18.
Positive geotropism is exhibited by
19.
Stomata open during the day and close at night because
20.
A cell that lacks chloroplast does not
23.
Compensation point means the condition
24.
The phytohormone that helps in the germination of seeds is
25.
Guttation is the elimination of excess of water from plants through
27.
Which one of the following pairs is not correctly matched?
28.
One of the synthetic auxin is
29.
Which of the following is not an effect of ethylene?
30.
Process of endosmosis stops
31.
Water will be absorbed by the root hairs when:
32.
The rate of photosynthesis is not affected by
33.
The production of starch and not glucose is often used as a measure of photosynthesis in leaves because
34.
Transpiration pull will be maximum under which of the following conditions?
35.
Cell division in plants is promoted by
36.
Which one of the following would not be a limiting factor for photosynthesis?
37.
If the rate of transpiration becomes more than the rate of photosynthesis, plants will
39.
A plant hormone for inducing Morphogenesis in plant tissue culture is
40.
A plant is kept in a dark cupbord for about 48 hours before conducting any experiment on photosynthesis to
41.
The specific function of light energy in the process of photosynthesis is to
43.
Marine fish when thrown under tap water bursts because of
44.
In the process of Osmosis in a cell:
45.
In the mechanism of opening and closing of stomata, the important factor is
Superb