Welcome to your Plant Physiology
1.
One of the synthetic auxin is
2.
Which of the following is not an effect of ethylene?
3.
Compensation point means the condition
4.
Transpiration pull will be maximum under which of the following conditions?
5.
Osmosis involves diffusion of
6.
A phytohormone existing in gaseous state is
7.
In the process of Osmosis in a cell:
8.
The production of starch and not glucose is often used as a measure of photosynthesis in leaves because
10.
The rate of photosynthesis is not affected by
11.
A plant hormone related with inhibition of senescence is
13.
Which would do maximum harm to a tree?
14.
In the mechanism of opening and closing of stomata, the important factor is
15.
A plant is kept in a dark cupbord for about 48 hours before conducting any experiment on photosynthesis to
16.
A cell that lacks chloroplast does not
17.
Stomata open during the day and close at night because
18.
Water will be absorbed by the root hairs when:
19.
Cell division in plants is promoted by
20.
Seeds when soaked in water imbibe in it because
21.
Which of the following regulate closure of stomata?
22.
Guttation is the elimination of excess of water from plants through
23.
The space between the cell wall and plasma membrane in a plasmolysed cell is filled with
24.
To increase sugar production in sugarcanes, they are sprayed with
25.
Plants lose water by guttation when
26.
When cell is fully turgid, which of the following will be zero?
27.
Positive geotropism is exhibited by
28.
In hot summer days, plant cooling is due to
29.
If the rate of transpiration becomes more than the rate of photosynthesis, plants will
31.
A plant hormone for inducing Morphogenesis in plant tissue culture is
32.
Which one of the following would not be a limiting factor for photosynthesis?
33.
When a plant wilts, the sequence of events is as follows:
35.
The phytohormone that prevents the germination of seeds is
37.
Marine fish when thrown under tap water bursts because of
38.
Which one of these reaction occurs during photosynthesis?
39.
Internodal elongation is associated with
40.
Which one of the following pairs is not correctly matched?
41.
Process of endosmosis stops
42.
The hormone responsible for phototropism and geotropism is
43.
The phytohormone that helps in the germination of seeds is
44.
Transpiration is very low during the storms due to
45.
The specific function of light energy in the process of photosynthesis is to
