Welcome to your Plant Physiology
1.
The production of starch and not glucose is often used as a measure of photosynthesis in leaves because
2.
A plant hormone related with inhibition of senescence is
3.
To increase sugar production in sugarcanes, they are sprayed with
4.
Which of the following regulate closure of stomata?
5.
A plant is kept in a dark cupbord for about 48 hours before conducting any experiment on photosynthesis to
6.
In the process of Osmosis in a cell:
7.
When cell is fully turgid, which of the following will be zero?
8.
Which one of the following pairs is not correctly matched?
9.
Stomata open during the day and close at night because
10.
Which of the following is not an effect of ethylene?
11.
The phytohormone that helps in the germination of seeds is
12.
Plants lose water by guttation when
13.
Guttation is the elimination of excess of water from plants through
14.
Compensation point means the condition
15.
A cell that lacks chloroplast does not
16.
The hormone responsible for phototropism and geotropism is
17.
Which one of the following would not be a limiting factor for photosynthesis?
18.
The rate of photosynthesis is not affected by
19.
Which one of these reaction occurs during photosynthesis?
20.
A plant hormone for inducing Morphogenesis in plant tissue culture is
21.
Process of endosmosis stops
23.
In hot summer days, plant cooling is due to
24.
Osmosis involves diffusion of
25.
A phytohormone existing in gaseous state is
26.
The space between the cell wall and plasma membrane in a plasmolysed cell is filled with
28.
Transpiration pull will be maximum under which of the following conditions?
29.
Which would do maximum harm to a tree?
30.
If the rate of transpiration becomes more than the rate of photosynthesis, plants will
31.
Seeds when soaked in water imbibe in it because
32.
Internodal elongation is associated with
33.
The specific function of light energy in the process of photosynthesis is to
34.
Water will be absorbed by the root hairs when:
35.
The phytohormone that prevents the germination of seeds is
38.
One of the synthetic auxin is
39.
Transpiration is very low during the storms due to
40.
Cell division in plants is promoted by
41.
Positive geotropism is exhibited by
42.
In the mechanism of opening and closing of stomata, the important factor is
43.
Marine fish when thrown under tap water bursts because of
45.
When a plant wilts, the sequence of events is as follows:
Superb