Welcome to your Plant Physiology
1.
Seeds when soaked in water imbibe in it because
2.
When cell is fully turgid, which of the following will be zero?
3.
If the rate of transpiration becomes more than the rate of photosynthesis, plants will
5.
In the mechanism of opening and closing of stomata, the important factor is
6.
Compensation point means the condition
7.
The production of starch and not glucose is often used as a measure of photosynthesis in leaves because
8.
Transpiration pull will be maximum under which of the following conditions?
10.
A plant hormone related with inhibition of senescence is
12.
In hot summer days, plant cooling is due to
13.
Which of the following is not an effect of ethylene?
14.
Water will be absorbed by the root hairs when:
15.
A phytohormone existing in gaseous state is
16.
To increase sugar production in sugarcanes, they are sprayed with
17.
The specific function of light energy in the process of photosynthesis is to
19.
Which one of the following pairs is not correctly matched?
20.
A plant hormone for inducing Morphogenesis in plant tissue culture is
21.
A cell that lacks chloroplast does not
22.
Which one of the following would not be a limiting factor for photosynthesis?
23.
Cell division in plants is promoted by
24.
A plant is kept in a dark cupbord for about 48 hours before conducting any experiment on photosynthesis to
25.
Process of endosmosis stops
26.
The space between the cell wall and plasma membrane in a plasmolysed cell is filled with
28.
Transpiration is very low during the storms due to
29.
The phytohormone that helps in the germination of seeds is
30.
When a plant wilts, the sequence of events is as follows:
31.
Plants lose water by guttation when
32.
Guttation is the elimination of excess of water from plants through
33.
One of the synthetic auxin is
34.
The phytohormone that prevents the germination of seeds is
35.
Internodal elongation is associated with
36.
Which of the following regulate closure of stomata?
37.
Which would do maximum harm to a tree?
38.
Which one of these reaction occurs during photosynthesis?
39.
Osmosis involves diffusion of
40.
Positive geotropism is exhibited by
41.
Marine fish when thrown under tap water bursts because of
42.
The hormone responsible for phototropism and geotropism is
43.
Stomata open during the day and close at night because
44.
In the process of Osmosis in a cell:
45.
The rate of photosynthesis is not affected by
Superb