Question # 1

The word virus is derived from Latin word _____________

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Venomeq

Bacter

Venus

Both a& b

The thin extensions of the inner mitochondrial membrane are known as __________

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Cristae

Matrix

Thylakoids

Stroma

Which of the following element is component of chlorophyll?

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Iron

Magnesuim

Nitrogen

Sulphur

Which of the following structures are not cells.

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Lymophocytes

Eosinophils

Monocytes

Platelets

Experimentation is only a step of the scientific process but it is very important step because it always:

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Gives the biologist a correct result

Allows rejection of some alternative hypothesis

Ensures that hypothesis can be confirmed with certainity

Give scientists a chance to work in the laboratory

Oral cavity opens into .............. .

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Phyranx

Lyranx

Trachea

Bronchi

Aerobic respiration needs free ............. .

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Carbon

Nitrogen

Oxygen

None

........................ helps in grinding of food .

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Tongue

Teeth

Salivary glands

All

Coenzymes are small ................. molecules.

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Organic

Inorganic

Both

None

.............. is water-soluble vitamin.

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Vitamin A

Vitamin C

Vitamin D

Vitamin K

Group of similar organism that interbreed and produce fertile off springs is ____________

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Genus

Species

Phyla

Order

Nuclei of human cell contain ............ autosomes.

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23 pairs

22 pairs

12 pairs

14 pairs

Cell walls are found in these organisms, except for _________

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Plants

Animals

Becteria

Fungi

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