Question # 1

The closing and opening of stomata is directly controlled by

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Wind

Temperature

Water

Light

...... are highly evolved of all the plants on earth

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Bryophytes

Pteridophytes

Angiosperms

Gymnosperms

Candida albicans is a

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smut

Rust

Yeast

Morel

Vascular system is absent in

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Bryophytes

Gymnosperms

Angiosperms

Pteridophytes

Organelle _____is concerned with cell secretion.

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Ribosomes

Mitochondria

Centrioles

Golgi complex

Fungi resemble animals because they are

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Saprotophs

Autotrophs

Heterotrophs

Heterosporous

Optimum pH for sucrase is

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2.00

4.50

5.50

7.60

In human body amount of oxygen is.

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50%

65%

40%

70%

In 1966 Ernst Hacckel proposed a third kingdom called

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Monera

Plantae

Fungi

Protoctista

One of the following has no upper inclusions.

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Deer

Dog

Bear

Pig

An activated enzyme made of polypeptide chain and a co-factor is

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Substrate

Co-enzyme

Apoenzyme

Holoenzyme

The living cells of cartilage are called

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Cridocytes

chondrocytes

Blastocysts

Nematocytes

The receptor cells of Planaria are sensitive to.

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Light and pressure

Light pressure and touch

Touch , pressure and chemicals

Light, pressure, touch and chemicals

Which light enhance cell division and retards cell enlargment.

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Red

Green

Blue

Violet

Chemical that cause fever and are produce from blood cells are

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Bilirubin

Interferons

Pyrogens

Anti biodies

1 g of ammonia nitrogen requires how much water for excretion.

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50 ml

250 ml

100 ml

500 ml

Identical twins result from the fertilization of:

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One ovum by the sperm

One ovum by the two sperms

Two ova by two sperms

Two ova by one sperm

The living organisms producing their own food.

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Heterotrophs

Consumers

Green plants

Decomposers

Which of the following polymerase synthesize tRNA.

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RNA Polymerase -I

RNA Polymerase -III

RNA Polymerase -II

DNA Polymerase

A chromosome with equal length of its arms.

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Acrocentric

Metacentric

sub meta centric

Telocentric

Desert ecosystem of Bhakkar and Mian wali is called.

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Thal

Thar

Cholistan

Rohi

Human skin colour is also a quantitative trait which is controlled by

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3 - 6 gene pairs

1 - 3 gene pairs

None of these

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