NEET Biology Solved Question Paper 2011 | Previous Year Papers | Zigya

Subject

Biology

Class

NEET Class 12

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 Multiple Choice QuestionsMultiple Choice Questions

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1.

The layer of cells that secrete enamel of the tooth is

  • Dentoblast

  • Ameloblast

  • Osteoblast

  • Odontoblast


2.

The exchange of gases in the alveoli of the lungs takes place by

  • Osmosis

  • Simple diffusion

  • Passive transport

  • Active transport


3.

Carbon monoxide is a pollutant because it

  • Reacts with oxygen

  • Inhibits glycolysis

  • Reacts with haemoglobin

  • Makes nervous system inactive


4.

Calcitonin is a thyroid hormone which

  • Elevates potassium level in the blood

  • Lowers calcium level in a blood

  • Elevates calcium level in the blood

  • Has no effect on calcium


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5.

A condition of failure of kidney to form urine is called

  • Deamination

  • Entropy

  • Anuria

  • None of these


6.

Solenocytes are the main excretory structures in

  • Annelids

  • Molluscs

  • Echinodermates

  • Platyhelminthes


7.

The functional unit of the contractile system in striated muscle is

  • Cross Bridge

  • Myofibril

  • Myofibril

  • Z-band


8.

The contraction of gall bladder is due to

  • Gastrin

  • Secretin

  • Cholecystokinin

  • Enterogastrone


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9.

Sympathetic nervous system induces

  • Heartbeat

  • Secretion of digestive juice

  • Secretion of saliva

  • All of the above


10.

The canal system is a characteristic feature of

  • Echinoderms

  • Helminths

  • Coelenterates

  • Sponges


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