Welcome to your Plant Physiology
2.
A phytohormone existing in gaseous state is
3.
Osmosis involves diffusion of
4.
If the rate of transpiration becomes more than the rate of photosynthesis, plants will
6.
Internodal elongation is associated with
7.
Seeds when soaked in water imbibe in it because
8.
Which of the following regulate closure of stomata?
9.
Stomata open during the day and close at night because
10.
The rate of photosynthesis is not affected by
11.
The phytohormone that prevents the germination of seeds is
12.
Guttation is the elimination of excess of water from plants through
13.
A plant hormone related with inhibition of senescence is
14.
The space between the cell wall and plasma membrane in a plasmolysed cell is filled with
15.
The specific function of light energy in the process of photosynthesis is to
16.
The phytohormone that helps in the germination of seeds is
17.
In hot summer days, plant cooling is due to
18.
A plant hormone for inducing Morphogenesis in plant tissue culture is
20.
Which would do maximum harm to a tree?
21.
Compensation point means the condition
22.
Which one of the following would not be a limiting factor for photosynthesis?
23.
Process of endosmosis stops
26.
A cell that lacks chloroplast does not
27.
A plant is kept in a dark cupbord for about 48 hours before conducting any experiment on photosynthesis to
28.
Plants lose water by guttation when
29.
The production of starch and not glucose is often used as a measure of photosynthesis in leaves because
30.
Transpiration is very low during the storms due to
31.
To increase sugar production in sugarcanes, they are sprayed with
32.
The hormone responsible for phototropism and geotropism is
33.
Water will be absorbed by the root hairs when:
34.
In the process of Osmosis in a cell:
35.
One of the synthetic auxin is
36.
Positive geotropism is exhibited by
37.
Marine fish when thrown under tap water bursts because of
38.
Which one of these reaction occurs during photosynthesis?
39.
Which one of the following pairs is not correctly matched?
40.
Which of the following is not an effect of ethylene?
41.
In the mechanism of opening and closing of stomata, the important factor is
42.
Cell division in plants is promoted by
43.
When cell is fully turgid, which of the following will be zero?
44.
When a plant wilts, the sequence of events is as follows:
45.
Transpiration pull will be maximum under which of the following conditions?
