Welcome to your Plant Physiology
1.
Positive geotropism is exhibited by
2.
If the rate of transpiration becomes more than the rate of photosynthesis, plants will
3.
Marine fish when thrown under tap water bursts because of
4.
In the process of Osmosis in a cell:
6.
The rate of photosynthesis is not affected by
8.
Internodal elongation is associated with
9.
The phytohormone that prevents the germination of seeds is
10.
Cell division in plants is promoted by
11.
To increase sugar production in sugarcanes, they are sprayed with
12.
Plants lose water by guttation when
14.
When cell is fully turgid, which of the following will be zero?
15.
Stomata open during the day and close at night because
16.
Compensation point means the condition
17.
The production of starch and not glucose is often used as a measure of photosynthesis in leaves because
18.
Guttation is the elimination of excess of water from plants through
19.
The phytohormone that helps in the germination of seeds is
20.
In the mechanism of opening and closing of stomata, the important factor is
21.
Which of the following regulate closure of stomata?
22.
Water will be absorbed by the root hairs when:
23.
Transpiration is very low during the storms due to
24.
A plant is kept in a dark cupbord for about 48 hours before conducting any experiment on photosynthesis to
25.
Which one of these reaction occurs during photosynthesis?
26.
The specific function of light energy in the process of photosynthesis is to
27.
In hot summer days, plant cooling is due to
28.
Which one of the following pairs is not correctly matched?
30.
A plant hormone for inducing Morphogenesis in plant tissue culture is
31.
Process of endosmosis stops
32.
The space between the cell wall and plasma membrane in a plasmolysed cell is filled with
33.
One of the synthetic auxin is
34.
Which of the following is not an effect of ethylene?
35.
A phytohormone existing in gaseous state is
36.
A cell that lacks chloroplast does not
37.
A plant hormone related with inhibition of senescence is
38.
When a plant wilts, the sequence of events is as follows:
39.
Which would do maximum harm to a tree?
40.
Transpiration pull will be maximum under which of the following conditions?
42.
Which one of the following would not be a limiting factor for photosynthesis?
43.
Osmosis involves diffusion of
44.
Seeds when soaked in water imbibe in it because
45.
The hormone responsible for phototropism and geotropism is
Superb