Welcome to your Plant Physiology
1.
Transpiration pull will be maximum under which of the following conditions?
2.
Which of the following regulate closure of stomata?
3.
Marine fish when thrown under tap water bursts because of
4.
Internodal elongation is associated with
5.
In hot summer days, plant cooling is due to
6.
A plant hormone related with inhibition of senescence is
7.
The rate of photosynthesis is not affected by
8.
The hormone responsible for phototropism and geotropism is
9.
The space between the cell wall and plasma membrane in a plasmolysed cell is filled with
10.
A plant hormone for inducing Morphogenesis in plant tissue culture is
11.
If the rate of transpiration becomes more than the rate of photosynthesis, plants will
12.
Water will be absorbed by the root hairs when:
13.
Cell division in plants is promoted by
14.
Process of endosmosis stops
15.
In the mechanism of opening and closing of stomata, the important factor is
16.
When cell is fully turgid, which of the following will be zero?
18.
Seeds when soaked in water imbibe in it because
19.
Which one of these reaction occurs during photosynthesis?
20.
The phytohormone that prevents the germination of seeds is
21.
A cell that lacks chloroplast does not
22.
Compensation point means the condition
23.
Plants lose water by guttation when
24.
Which would do maximum harm to a tree?
26.
The phytohormone that helps in the germination of seeds is
27.
Osmosis involves diffusion of
28.
Positive geotropism is exhibited by
29.
Transpiration is very low during the storms due to
30.
The production of starch and not glucose is often used as a measure of photosynthesis in leaves because
31.
When a plant wilts, the sequence of events is as follows:
32.
Guttation is the elimination of excess of water from plants through
34.
Which one of the following would not be a limiting factor for photosynthesis?
35.
To increase sugar production in sugarcanes, they are sprayed with
36.
Which of the following is not an effect of ethylene?
37.
The specific function of light energy in the process of photosynthesis is to
38.
Stomata open during the day and close at night because
39.
A plant is kept in a dark cupbord for about 48 hours before conducting any experiment on photosynthesis to
40.
A phytohormone existing in gaseous state is
41.
One of the synthetic auxin is
42.
Which one of the following pairs is not correctly matched?
44.
In the process of Osmosis in a cell:
Superb