Welcome to your Plant Physiology
2.
Stomata open during the day and close at night because
3.
Seeds when soaked in water imbibe in it because
4.
Process of endosmosis stops
5.
A cell that lacks chloroplast does not
6.
If the rate of transpiration becomes more than the rate of photosynthesis, plants will
7.
Plants lose water by guttation when
8.
Which of the following regulate closure of stomata?
9.
Internodal elongation is associated with
10.
One of the synthetic auxin is
11.
Water will be absorbed by the root hairs when:
12.
The phytohormone that helps in the germination of seeds is
13.
Which one of the following pairs is not correctly matched?
14.
When cell is fully turgid, which of the following will be zero?
15.
The phytohormone that prevents the germination of seeds is
16.
When a plant wilts, the sequence of events is as follows:
17.
The space between the cell wall and plasma membrane in a plasmolysed cell is filled with
19.
Transpiration is very low during the storms due to
20.
To increase sugar production in sugarcanes, they are sprayed with
21.
In hot summer days, plant cooling is due to
22.
A plant hormone related with inhibition of senescence is
23.
In the mechanism of opening and closing of stomata, the important factor is
24.
Which of the following is not an effect of ethylene?
25.
Transpiration pull will be maximum under which of the following conditions?
26.
Which one of the following would not be a limiting factor for photosynthesis?
28.
Which one of these reaction occurs during photosynthesis?
29.
Marine fish when thrown under tap water bursts because of
30.
The specific function of light energy in the process of photosynthesis is to
32.
Guttation is the elimination of excess of water from plants through
33.
Positive geotropism is exhibited by
34.
Which would do maximum harm to a tree?
35.
The production of starch and not glucose is often used as a measure of photosynthesis in leaves because
36.
The hormone responsible for phototropism and geotropism is
37.
A plant hormone for inducing Morphogenesis in plant tissue culture is
38.
Compensation point means the condition
39.
Cell division in plants is promoted by
40.
In the process of Osmosis in a cell:
41.
The rate of photosynthesis is not affected by
42.
A phytohormone existing in gaseous state is
44.
Osmosis involves diffusion of
45.
A plant is kept in a dark cupbord for about 48 hours before conducting any experiment on photosynthesis to
