Question # 1

What happens when a mismatched blood group is injected in recipient?

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Antibodies of the recipient's blood destroy donor's RBCs

Antibodies of the donor's blood breakdown recipient's RBCs

Both of these can happen

None of these and such transfusion can be safe

Forests are the source of:

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Drugs

Fuel

Timber

All of these

The smallest cells of bacteria are celled:

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Plasmodesmata

Plasma membrane

Mycoplasms

Plasmolysis

............... is a great stabilizer of body temperature.

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Carbon

Nitrogen

Water

None

The connection between stomach & esophagus is called ............. sphincter.

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Cardiac

Muscular

Both

None

When we add more substrate to an already occurring enzymatic reaction and there is no increase in the rate of reaction what would you predict?

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All active sites have been occupied by substrate molecules

The enzyme molecules have denatured

More substrate acted as inhibitor

More substrate has disturbed the pH of the medium

Which food group is our body's best source of energy?

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Meat Group

Fats,oils and sweets

Breads and cereals

Milk and cheese

To what category of molecules do enzymes belong?

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Carbohydrates

Lipids

Nucleic acids

Proteins

Oxygen takes part in aerobic respiration in:

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Glycolysis

Link step between Glycolysis and krebs cycle

Electron transport chain

Krebs cycle

Down's syndrome is case of .................. .

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Autosomy

Monosomy

Trisomy

Tetrasomy

The scientific name of human being is:

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Homo sapiens

Pisum sativum

Amanta

E. coli

No of steps of biological method are

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Six

Seven

Two

Eight

Five senses are involved in:

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Hypothesis

Observations

Deduction

Experiment

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