Question # 1

_________ atom is the principal building block of many kind of biomolecules.

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Oxygen

Carbon

Hydrogen

Nitrogen

Streptomycin drug is obtained from:

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Fungi

Animals

Becteria

Plants

Which gas us absorbed through stomata of plant during night?

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Carbon dioxide

Oxygen

Nitrigen

Hydrogen

All the alveoli of one side unite to form:

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Lung

Kidney

Thorax

Chest Box

Process that carry nerve impulses away from the cell body are called.

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Axon

Dendrites

Synapses

Myelin sheath

Normal pH of blood is maintained at.

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7.35 -7.40

7.35-7.45

7.30-7.40

7.30-7.45

Among following, which is source of variations?

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Mutation

Crossing over

Gene flow

All of these

Urine contains the least amount of.

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Urea

Sodium Ions

Water

Potassium Ion

Inherited characters are called.

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Genes

Traits

Genetics

Fertilization

C-Shaped cartilaginous rings are present in the wall of.

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Bronchi

Bronchioles

Alveoli

Trachea

The name of tube between kidney and urinary bladder is.

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Ureter

Urethra

Renal tubula

Nephron

In the atmosphere, carbon is found as

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graphite

diamond

carbonates

carbon dioxide

How many pairs of homologous chromosomes are present in human body cells:

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22

23

24

25

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