Blue green algae are:
A.Actinomycetes
B.Acellular
C.Prokaryotes
D.Eukaryotes
Category: Agriculture Plant Physiology Mcqs
An apparatus for measuring transpiration in plants is called:
A.Auxanometer
B.Potometer
C.Hygrometer
D.Lactometer
A natural growth regulator (hormone) is:
A.Benzaldehyde
B.2, 4-D
C.N.A.A.
D.Ethylene
The real force causing entry of water into a cell from other cell is:
A.Diffusion pressure deficit
B.Turgor pressure
C.Osmotic pressure
D.Wall pressure
In 1948, V.S. Chardakov who devised a simple and efficient method to determine the test solution in which no change in concentration occurs was:
A.Austrian Scientist
B.American Scientist
C.Bulgarian Scientist
D.Russian Scientist
Wilting of plant results from excessive:
A.Absorption
B.Photosynthesis
C.Respiration
D.Transpiration
Which one of the following factors causes an increase in transpiration rate?
A.A hot dry windy day
B.A cool damp windy day
C.A hot damp windy day
D.None of the above
During the photosynthesis the oxygen in glucose comes from:
A.Carbon dioxide
B.Water
C.Both from carbon dioxide and water
D.Oxygen in the air
ABA (abscic acid) appears to be universal among:
A.Algae
B.Liveworts
C.Vascular plants
D.All mosses
