Welcome to your Plant Physiology
1.
Which one of the following would not be a limiting factor for photosynthesis?
2.
When cell is fully turgid, which of the following will be zero?
3.
Guttation is the elimination of excess of water from plants through
4.
A cell that lacks chloroplast does not
5.
One of the synthetic auxin is
6.
Which of the following regulate closure of stomata?
7.
The specific function of light energy in the process of photosynthesis is to
8.
Which would do maximum harm to a tree?
9.
Process of endosmosis stops
10.
The hormone responsible for phototropism and geotropism is
11.
In the mechanism of opening and closing of stomata, the important factor is
12.
Transpiration is very low during the storms due to
14.
Plants lose water by guttation when
15.
Which one of these reaction occurs during photosynthesis?
16.
Water will be absorbed by the root hairs when:
17.
If the rate of transpiration becomes more than the rate of photosynthesis, plants will
18.
To increase sugar production in sugarcanes, they are sprayed with
19.
The production of starch and not glucose is often used as a measure of photosynthesis in leaves because
20.
A phytohormone existing in gaseous state is
21.
Transpiration pull will be maximum under which of the following conditions?
22.
Compensation point means the condition
23.
Marine fish when thrown under tap water bursts because of
24.
The phytohormone that prevents the germination of seeds is
25.
Which of the following is not an effect of ethylene?
26.
When a plant wilts, the sequence of events is as follows:
27.
The phytohormone that helps in the germination of seeds is
28.
Which one of the following pairs is not correctly matched?
30.
Positive geotropism is exhibited by
31.
Cell division in plants is promoted by
33.
A plant hormone related with inhibition of senescence is
34.
The space between the cell wall and plasma membrane in a plasmolysed cell is filled with
35.
Stomata open during the day and close at night because
37.
In the process of Osmosis in a cell:
38.
A plant hormone for inducing Morphogenesis in plant tissue culture is
39.
A plant is kept in a dark cupbord for about 48 hours before conducting any experiment on photosynthesis to
40.
Seeds when soaked in water imbibe in it because
41.
The rate of photosynthesis is not affected by
42.
Osmosis involves diffusion of
44.
In hot summer days, plant cooling is due to
45.
Internodal elongation is associated with
Superb