Welcome to your Plant Physiology
1.
Which one of the following pairs is not correctly matched?
2.
A plant is kept in a dark cupbord for about 48 hours before conducting any experiment on photosynthesis to
3.
When cell is fully turgid, which of the following will be zero?
4.
A plant hormone related with inhibition of senescence is
5.
Positive geotropism is exhibited by
6.
A plant hormone for inducing Morphogenesis in plant tissue culture is
7.
The phytohormone that prevents the germination of seeds is
8.
In the mechanism of opening and closing of stomata, the important factor is
9.
Which one of the following would not be a limiting factor for photosynthesis?
10.
Cell division in plants is promoted by
11.
One of the synthetic auxin is
13.
In hot summer days, plant cooling is due to
14.
Transpiration pull will be maximum under which of the following conditions?
15.
A cell that lacks chloroplast does not
16.
The specific function of light energy in the process of photosynthesis is to
17.
Internodal elongation is associated with
18.
Guttation is the elimination of excess of water from plants through
19.
Which of the following regulate closure of stomata?
20.
Water will be absorbed by the root hairs when:
21.
Transpiration is very low during the storms due to
22.
If the rate of transpiration becomes more than the rate of photosynthesis, plants will
23.
A phytohormone existing in gaseous state is
24.
The hormone responsible for phototropism and geotropism is
25.
The rate of photosynthesis is not affected by
26.
Which of the following is not an effect of ethylene?
27.
The phytohormone that helps in the germination of seeds is
28.
The production of starch and not glucose is often used as a measure of photosynthesis in leaves because
29.
Compensation point means the condition
30.
Marine fish when thrown under tap water bursts because of
31.
The space between the cell wall and plasma membrane in a plasmolysed cell is filled with
32.
In the process of Osmosis in a cell:
34.
When a plant wilts, the sequence of events is as follows:
35.
To increase sugar production in sugarcanes, they are sprayed with
37.
Which one of these reaction occurs during photosynthesis?
38.
Process of endosmosis stops
40.
Plants lose water by guttation when
41.
Which would do maximum harm to a tree?
43.
Seeds when soaked in water imbibe in it because
44.
Stomata open during the day and close at night because
45.
Osmosis involves diffusion of
Superb