Welcome to your Plant Physiology
1.
Seeds when soaked in water imbibe in it because
2.
In the process of Osmosis in a cell:
3.
Which would do maximum harm to a tree?
4.
Which one of the following would not be a limiting factor for photosynthesis?
5.
Transpiration is very low during the storms due to
8.
The specific function of light energy in the process of photosynthesis is to
9.
A plant hormone for inducing Morphogenesis in plant tissue culture is
10.
Which one of the following pairs is not correctly matched?
11.
One of the synthetic auxin is
12.
A cell that lacks chloroplast does not
14.
The rate of photosynthesis is not affected by
15.
Process of endosmosis stops
16.
The production of starch and not glucose is often used as a measure of photosynthesis in leaves because
17.
A plant is kept in a dark cupbord for about 48 hours before conducting any experiment on photosynthesis to
18.
In hot summer days, plant cooling is due to
19.
The phytohormone that prevents the germination of seeds is
20.
A plant hormone related with inhibition of senescence is
22.
Transpiration pull will be maximum under which of the following conditions?
23.
When a plant wilts, the sequence of events is as follows:
24.
When cell is fully turgid, which of the following will be zero?
25.
Water will be absorbed by the root hairs when:
26.
Positive geotropism is exhibited by
27.
The space between the cell wall and plasma membrane in a plasmolysed cell is filled with
28.
If the rate of transpiration becomes more than the rate of photosynthesis, plants will
29.
Which of the following regulate closure of stomata?
30.
A phytohormone existing in gaseous state is
31.
Internodal elongation is associated with
32.
Cell division in plants is promoted by
33.
Compensation point means the condition
34.
In the mechanism of opening and closing of stomata, the important factor is
35.
Guttation is the elimination of excess of water from plants through
36.
Which one of these reaction occurs during photosynthesis?
37.
Osmosis involves diffusion of
38.
The phytohormone that helps in the germination of seeds is
39.
The hormone responsible for phototropism and geotropism is
40.
To increase sugar production in sugarcanes, they are sprayed with
42.
Marine fish when thrown under tap water bursts because of
43.
Which of the following is not an effect of ethylene?
44.
Stomata open during the day and close at night because
45.
Plants lose water by guttation when
