Question # 1

Curved or comma shaped bacteria are called.

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Vibrio

spirillum

Spirochetes

Bacli

Monosaccharide which are rare in nature and occur in some bacteria is.

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Trioses

Tetroses

Hexoses

Pentoses

The predatory oyster mushroom paralyses the following organisms.

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Nematodes

Algae

Bacteria

Snails

Antiserum is a serum containing.

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Hormones

Antigen

Enzymes

Antibodies

Why hemoglobin is 98% saturated, the oxygen content per 100 ml of blood is.

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19.6 ml

18.6 ml

17.6 ml

16.6 ml

Reindeer moss is a

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Fungus

Lichen

Moss

Mold

The digestive cacuoles and autophagosomes are also called.

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Primary lysosomes

Secondary Lysosomes

Endocytosis

All above

In spermatophytes, seed is formed from.

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Ovule

Ovary

Anther

Embryosac

Accessory photosynthetic pigment xanthophyll's are

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Green in colour

Red in colour

Yellow in colour

None of these

An enzyme is said to be denatured when

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It has no co-factor

It is in a condition of low temperature

Its structure is destroyed

None of these

During respiratory chain co enzyme Q is oxidized.

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Cytochrome a

Cytochrome b

Cytochrome c

Cytochrome a3

Cell cycle involves.

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Growth of cell

Replication of DNA

Cell division

None of these

Inheritance of skin colour in man is controlled by eight pairs of genes , which are:

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Linked

Codominent

Multiple alleles

Assorting independently

Which hormone is chemically steroid .

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ADH

Corticosherone

Insulin

Thyoxine

How many types of finches did Darwin collect on Galapagos Island.

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13 types

20 types

25 types

30 types

In terrestrial plants major mechanical stress is imposed by.

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Gravity

Temperature

Wind

Soil

The Sclerenchyma has thick secondary walls usually impregnated with.

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Chitin

Pectin

sillica

Lignin

An example of long day plant is

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Tomato

Cabbage

Corn

Soyabean

Mammalian kidney including human is adapted to conserve water upto.

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69.5%

79.5%

89.5%

99.5%

As distal end humerus forms hinge joint with

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Radius

Ulna

Tibia

Both a & b

Chiasmata formation take place duirng.

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Leptotene

diakinesis

Diplotene

Pachytene

In neurons the message is transmitted across synapse in the form of chemical messenger called.

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Nerve impulse

Synaptic vesicle

Neurotransmitters

Communlaction

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