Welcome to your Plant Physiology
1.
Cell division in plants is promoted by
2.
A phytohormone existing in gaseous state is
3.
The specific function of light energy in the process of photosynthesis is to
4.
Stomata open during the day and close at night because
5.
A plant hormone for inducing Morphogenesis in plant tissue culture is
7.
If the rate of transpiration becomes more than the rate of photosynthesis, plants will
8.
Which one of the following pairs is not correctly matched?
9.
The phytohormone that helps in the germination of seeds is
10.
Compensation point means the condition
11.
Which of the following regulate closure of stomata?
12.
Which of the following is not an effect of ethylene?
13.
Water will be absorbed by the root hairs when:
14.
Transpiration is very low during the storms due to
15.
Guttation is the elimination of excess of water from plants through
16.
Plants lose water by guttation when
18.
The phytohormone that prevents the germination of seeds is
20.
The space between the cell wall and plasma membrane in a plasmolysed cell is filled with
21.
Which would do maximum harm to a tree?
22.
The rate of photosynthesis is not affected by
24.
Internodal elongation is associated with
25.
Seeds when soaked in water imbibe in it because
26.
Which one of these reaction occurs during photosynthesis?
27.
Positive geotropism is exhibited by
28.
Transpiration pull will be maximum under which of the following conditions?
29.
Which one of the following would not be a limiting factor for photosynthesis?
30.
In the mechanism of opening and closing of stomata, the important factor is
31.
A plant is kept in a dark cupbord for about 48 hours before conducting any experiment on photosynthesis to
32.
Marine fish when thrown under tap water bursts because of
33.
A cell that lacks chloroplast does not
34.
In the process of Osmosis in a cell:
35.
In hot summer days, plant cooling is due to
37.
Process of endosmosis stops
38.
One of the synthetic auxin is
39.
A plant hormone related with inhibition of senescence is
40.
The production of starch and not glucose is often used as a measure of photosynthesis in leaves because
41.
Osmosis involves diffusion of
42.
When a plant wilts, the sequence of events is as follows:
43.
When cell is fully turgid, which of the following will be zero?
44.
To increase sugar production in sugarcanes, they are sprayed with
45.
The hormone responsible for phototropism and geotropism is
Superb