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211.

Alcohol is produced during the process of:

A.	Photosynthesis and respiration	B.	Aerobic respiration
C.	Anaerobic respiration	D.	None of the above

212.

Which pigment is essential for nitrogen fixation by leguminous plants?

A.	Phycocyanin	B.	Leghaemoglobin
C.	Phycoerythrin	D.	Anthocyanin

213.

A plant is kept in 30 ppm. of CO2 concentration what will happen to it?

A.	Plant will not grow but will not die	B.	Plant will show normal photosynthesis
C.	Plant will die soon	D.	Plant will grow faster

214.

Semi-permeability is the property of:

A.	Plasma membrane	B.	Cell wall
C.	Golgi body	D.	Endoplasmic reticulum

215.

A thoroughly cleaned goat bladder if filled with syrup, tightly tied immersed in a vessel of water:

A.	Plasmolysis will occur	B.	The volume of the liquid within the bladder will remain constant
C.	The volume of liquid within the bladder will increase	D.	The volume of liquid within the bladder will decrease

216.

Protoplasm is:

A.	Polyphasic colloidal system	B.	Collodial solution
C.	Suspension	D.	True solution

217.

Which of the following elements has not been proved to be essential for plants?

A.	Potassium	B.	Sodium
C.	Zinc	D.	Iron

218.

The apparatus generally used for studying the rate of transpiration stream is:

A.	Potometer	B.	Evaporimeter
C.	Atmometer	D.	Perimeter

219.

High concentration of synthetic auxins would:

A.	Prevent lateral buds to grow	B.	Kills weeds
C.	Cause root initiation	D.	Control cell enlargement

220.

The process of photophos-phorylation was discovered by:

A.	Priestley	B.	Warburg
C.	Arnon	D.	Calvin