Welcome to your Plant Physiology
1.
In the process of Osmosis in a cell:
2.
Water will be absorbed by the root hairs when:
3.
Which of the following is not an effect of ethylene?
4.
A plant is kept in a dark cupbord for about 48 hours before conducting any experiment on photosynthesis to
5.
The specific function of light energy in the process of photosynthesis is to
6.
Which of the following regulate closure of stomata?
7.
When a plant wilts, the sequence of events is as follows:
8.
In the mechanism of opening and closing of stomata, the important factor is
9.
Compensation point means the condition
10.
Guttation is the elimination of excess of water from plants through
11.
A cell that lacks chloroplast does not
12.
A plant hormone for inducing Morphogenesis in plant tissue culture is
13.
Seeds when soaked in water imbibe in it because
14.
Stomata open during the day and close at night because
15.
The rate of photosynthesis is not affected by
16.
One of the synthetic auxin is
17.
Cell division in plants is promoted by
18.
The phytohormone that helps in the germination of seeds is
19.
Which one of these reaction occurs during photosynthesis?
20.
Which one of the following pairs is not correctly matched?
22.
Transpiration is very low during the storms due to
23.
Which would do maximum harm to a tree?
24.
Transpiration pull will be maximum under which of the following conditions?
26.
A phytohormone existing in gaseous state is
28.
The production of starch and not glucose is often used as a measure of photosynthesis in leaves because
29.
Osmosis involves diffusion of
30.
Positive geotropism is exhibited by
32.
Internodal elongation is associated with
33.
Which one of the following would not be a limiting factor for photosynthesis?
34.
Plants lose water by guttation when
35.
To increase sugar production in sugarcanes, they are sprayed with
36.
Process of endosmosis stops
37.
The hormone responsible for phototropism and geotropism is
38.
Marine fish when thrown under tap water bursts because of
39.
If the rate of transpiration becomes more than the rate of photosynthesis, plants will
40.
The space between the cell wall and plasma membrane in a plasmolysed cell is filled with
41.
In hot summer days, plant cooling is due to
42.
The phytohormone that prevents the germination of seeds is
43.
When cell is fully turgid, which of the following will be zero?
45.
A plant hormone related with inhibition of senescence is
Superb