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NEET Biology Solved Question Paper 2010

Multiple Choice Questions

31.

Assertion : Insulin is antagonistic to glucagon.

Reason : It is an anabolic hormone.

If both assertion and reason are true and reason is the correct explanation of assertion.
If both assertion and reason are true but reason is not the correct explanation of assertion.
If assertion is true but reason is false.
If both assertion and reason are false.

32.

Assertion : Auditory ossicles are small bones present in the cavity of inner ear.

Reason : Auditory ossicles maintain the balance of air pressure between two sides of ear drum.

If both assertion and reason are true and reason is the correct explanation of assertion.
If both assertion and reason are true but reason is not the correct explanation of assertion.
If assertion is true but reason is false
If both assertion and reason are false.

33.
Assertion : Pharyngeal nephridia play a role in the conservation of water in the earthworm.
Reason : They help the earthworm in keeping the skin moist for cutaneous respiration.

If both assertion and reason are true and reason is the correct explanation of assertion

If both assertion and reason are true but reason is not the correct explanation of assertion.

If assertion is true but reason is false.

If both assertion and reason are false.

If assertion is true but reason is false.

Pharyngeal nephridia occur in three pairs of bunches in the 4^th, 5^th and 6^th segments lying on each side ofthe alimentary canal. The ducts ofthe nephridia of the 6^th open into the buccal cavity while the ducts from the nephridia bunches of the 4^th and 5^th segments open into the pharynx. These ducts carry excretory products from the pharyngeal nephridia into the gut.

Enteronephric condition is an adaptation for the conservation of water which is absorbed by the inner lining of the alimentary canal. Ectonephric nephridia discharge their contents directly to the outside which help the earthworm in keeping the skin moist for cutaneous respiration only. Integumentary nephridia are ectonephric nephridia while, pharyngeal and septal nephridia are enteronephric.

34.

Assertion : Pantothenic acid deficiency is probably the most common vitamin deficiency.

Reason : Macrocytic anaemia is a characteristic feature of pantothenic acid deficiency.

If both assertion and reason are true and reason is the correct explanation of assertion
If both assertion and reason are true but reason is not the correct explanation of assertion.
If assertion is true but reason is false.
If both assertion and reason are false