Welcome to your Plant Physiology
1.
Transpiration is very low during the storms due to
3.
A phytohormone existing in gaseous state is
5.
Which would do maximum harm to a tree?
6.
In hot summer days, plant cooling is due to
7.
Which of the following regulate closure of stomata?
8.
When cell is fully turgid, which of the following will be zero?
9.
A plant hormone related with inhibition of senescence is
10.
Which of the following is not an effect of ethylene?
11.
In the process of Osmosis in a cell:
12.
The rate of photosynthesis is not affected by
13.
The phytohormone that helps in the germination of seeds is
15.
Transpiration pull will be maximum under which of the following conditions?
16.
The phytohormone that prevents the germination of seeds is
17.
Internodal elongation is associated with
18.
The specific function of light energy in the process of photosynthesis is to
19.
Compensation point means the condition
20.
Process of endosmosis stops
21.
Water will be absorbed by the root hairs when:
22.
Seeds when soaked in water imbibe in it because
23.
Osmosis involves diffusion of
24.
The space between the cell wall and plasma membrane in a plasmolysed cell is filled with
25.
To increase sugar production in sugarcanes, they are sprayed with
27.
Marine fish when thrown under tap water bursts because of
28.
Stomata open during the day and close at night because
29.
One of the synthetic auxin is
30.
When a plant wilts, the sequence of events is as follows:
31.
A plant hormone for inducing Morphogenesis in plant tissue culture is
32.
Guttation is the elimination of excess of water from plants through
33.
A cell that lacks chloroplast does not
34.
A plant is kept in a dark cupbord for about 48 hours before conducting any experiment on photosynthesis to
35.
Positive geotropism is exhibited by
36.
Which one of the following would not be a limiting factor for photosynthesis?
37.
Which one of the following pairs is not correctly matched?
38.
In the mechanism of opening and closing of stomata, the important factor is
39.
The hormone responsible for phototropism and geotropism is
40.
Cell division in plants is promoted by
41.
The production of starch and not glucose is often used as a measure of photosynthesis in leaves because
42.
If the rate of transpiration becomes more than the rate of photosynthesis, plants will
44.
Which one of these reaction occurs during photosynthesis?
45.
Plants lose water by guttation when
Superb