Welcome to your Plant Physiology
1.
Osmosis involves diffusion of
2.
In the mechanism of opening and closing of stomata, the important factor is
3.
The rate of photosynthesis is not affected by
5.
Compensation point means the condition
6.
The phytohormone that helps in the germination of seeds is
7.
Which one of the following would not be a limiting factor for photosynthesis?
8.
The phytohormone that prevents the germination of seeds is
9.
Which one of the following pairs is not correctly matched?
10.
Transpiration is very low during the storms due to
11.
Guttation is the elimination of excess of water from plants through
12.
Process of endosmosis stops
13.
Positive geotropism is exhibited by
15.
A plant hormone for inducing Morphogenesis in plant tissue culture is
17.
In hot summer days, plant cooling is due to
18.
Cell division in plants is promoted by
19.
Which of the following is not an effect of ethylene?
20.
To increase sugar production in sugarcanes, they are sprayed with
21.
A phytohormone existing in gaseous state is
22.
If the rate of transpiration becomes more than the rate of photosynthesis, plants will
23.
A cell that lacks chloroplast does not
24.
Seeds when soaked in water imbibe in it because
25.
A plant hormone related with inhibition of senescence is
27.
Internodal elongation is associated with
29.
Transpiration pull will be maximum under which of the following conditions?
30.
Which of the following regulate closure of stomata?
31.
The space between the cell wall and plasma membrane in a plasmolysed cell is filled with
32.
A plant is kept in a dark cupbord for about 48 hours before conducting any experiment on photosynthesis to
33.
The production of starch and not glucose is often used as a measure of photosynthesis in leaves because
34.
When a plant wilts, the sequence of events is as follows:
35.
Plants lose water by guttation when
36.
Marine fish when thrown under tap water bursts because of
37.
Stomata open during the day and close at night because
38.
The specific function of light energy in the process of photosynthesis is to
39.
When cell is fully turgid, which of the following will be zero?
40.
One of the synthetic auxin is
41.
The hormone responsible for phototropism and geotropism is
42.
Which would do maximum harm to a tree?
43.
Which one of these reaction occurs during photosynthesis?
44.
In the process of Osmosis in a cell:
45.
Water will be absorbed by the root hairs when:
Superb