It has been estimated that carbon dioxide content within the maize plant-canopies was 260 or less during day, whereas it rose to ______
A.400
B.500
C.600
D.700
Category: Agriculture Plant Physiology Mcqs
Fermentation is conducted by:
A.All fungi
B.All bacteria
C.Some fungi and some bacteria
D.All microorganisms
Proteins are made up of:
A.Amino acid
B.Nucleic acids
C.Sugars
D.Fatty acids
Quantasomes contain:
A.200 chlorophyll molecules
B.230 chlorophyll molecules
C.250 chlorophyll molecules
D.300 chlorophyll molecules
If CO2 is given off in respirtion, why does the amount of CO2 in the atmosphere remain relatively constant?
A.CO2 forms carbonate rocks
B.CO2 is a buffer
C.CO2 is converted in photosynthesis to carbohydrates
D.CO2 is split up during photosynthesis
Which of the following effects of auxins on plants is the basis for commercial application?
A.Callus formation
B.Curvature of stem
C.Industion of root formation in stem cuttings
D.All of the above
Non-essential element for the proper growth of plant is:
A.Cobalt
B.Magnesium
C.Chlorine
D.Calcium
Position and frequency of stomata can be determined by:
A.Calculating the loss of water
B.Cobalt chloride paper method
C.Potometer
D.Porometer
The removal of apical buds and young leaves _____ branching:
A.Decreases
B.Increases
C.Maintains
D.No effect
Mineral salts, which are absorbed by the roots for the soil, are in the form of:
A.Dilute solution
B.Very concentrated solution
C.Concentrated solution
D.Very dilute solution
