NEET Biology Solved Question Paper 2011

Multiple Choice Questions

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A condition of failure of kidney to form urine is called

  • Deamination

  • Entropy

  • Anuria

  • None of these

C.

Anuria

The terms anuria, oligonuria, polynuria and dysuria are used for the absence of urine, scanty urine, large amounts of urine, and painful urination respectively. Deamination is the removal of amino (NH) group frequently from an amino acid by transaminase enzymes.

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    Solenocytes are the main excretory structures in

    • Annelids

    • Molluscs

    • Echinodermates

    • Platyhelminthes

    Answer

    The canal system is a characteristic feature of

    • Echinoderms

    • Helminths

    • Coelenterates

    • Sponges

    Answer

    Carbon monoxide is a pollutant because it

    • Reacts with oxygen

    • Inhibits glycolysis

    • Reacts with haemoglobin

    • Makes nervous system inactive

    Answer

    Sympathetic nervous system induces

    • Heartbeat

    • Secretion of digestive juice

    • Secretion of saliva

    • All of the above

    Answer
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    The contraction of gall bladder is due to

    • Gastrin

    • Secretin

    • Cholecystokinin

    • Enterogastrone

    Answer

    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

    Answer

    The functional unit of the contractile system in striated muscle is

    • Cross Bridge

    • Myofibril

    • Myofibril

    • Z-band

    Answer

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

    • Osmosis

    • Simple diffusion

    • Passive transport

    • Active transport

    Answer
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    The layer of cells that secrete enamel of the tooth is

    • Dentoblast

    • Ameloblast

    • Osteoblast

    • Odontoblast

    Answer