Question # 1

Amount of nitrogen in expired air is:

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70%

80%

79%

4%

A DNA molecule consists of______ polynucleotide strands.

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2

3

4

5

Is an Analgesic:

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Diazepam

Aspirine

Paracetamol

Both B and C

The major process that brings carbon from atmosphere into living world is:

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Photosynthesis

Respiration

Both a and b

None of these

Rate of breathing depends upon concentration of which gas:

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Oxygen

Carbon dioxide

Nitrogen

Hydrogen

Ribs which protect the kidneys are.

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First two

Last two

Middle

Last four

Is the smallest bone of human body?

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Malleus

Incus

Stapes

Cochlea

Smoking may also lead to the cancers in:

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Kidneys and pancreas

Oral cavity and larynx

Breast and bladder

All of them

Cacti are example of:

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Hydrophytes

Xerophytes

Halophytes

None of these

U-Shaped part of renal tubule is called.

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Renal corpuscle

Glomerulus

Loop of henle

Bowman's capsule

Every ripened ovule is called:

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Leaves

Flower

Seed

Fruit

The name of tube between kidney and urinary bladder is.

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Ureter

Urethra

Renal tubula

Nephron

The lens found in human eye is:

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Concave

Convex

Both a and b

None of these

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