Welcome to your Plant Physiology
1.
When cell is fully turgid, which of the following will be zero?
2.
Stomata open during the day and close at night because
4.
Which one of the following would not be a limiting factor for photosynthesis?
5.
Transpiration is very low during the storms due to
6.
Guttation is the elimination of excess of water from plants through
7.
Plants lose water by guttation when
8.
Compensation point means the condition
10.
Transpiration pull will be maximum under which of the following conditions?
11.
Cell division in plants is promoted by
12.
A plant hormone for inducing Morphogenesis in plant tissue culture is
13.
Water will be absorbed by the root hairs when:
14.
The production of starch and not glucose is often used as a measure of photosynthesis in leaves because
15.
The hormone responsible for phototropism and geotropism is
16.
Which of the following is not an effect of ethylene?
17.
Osmosis involves diffusion of
18.
The space between the cell wall and plasma membrane in a plasmolysed cell is filled with
19.
Internodal elongation is associated with
20.
A plant is kept in a dark cupbord for about 48 hours before conducting any experiment on photosynthesis to
21.
The phytohormone that helps in the germination of seeds is
22.
Process of endosmosis stops
23.
Marine fish when thrown under tap water bursts because of
24.
In the process of Osmosis in a cell:
25.
The rate of photosynthesis is not affected by
26.
If the rate of transpiration becomes more than the rate of photosynthesis, plants will
28.
In the mechanism of opening and closing of stomata, the important factor is
29.
When a plant wilts, the sequence of events is as follows:
31.
A cell that lacks chloroplast does not
32.
In hot summer days, plant cooling is due to
33.
To increase sugar production in sugarcanes, they are sprayed with
34.
The specific function of light energy in the process of photosynthesis is to
35.
A phytohormone existing in gaseous state is
36.
The phytohormone that prevents the germination of seeds is
37.
A plant hormone related with inhibition of senescence is
38.
Positive geotropism is exhibited by
39.
Which would do maximum harm to a tree?
40.
Seeds when soaked in water imbibe in it because
41.
Which one of these reaction occurs during photosynthesis?
42.
One of the synthetic auxin is
44.
Which one of the following pairs is not correctly matched?
45.
Which of the following regulate closure of stomata?
Superb