Question # 1

The first action spectrum was obtained by.

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T.W. Engelmann

Van Neil

Melvin Calvia

Ernst Haeckel

Photosynthetic pigments are the substances that absorb visible light having wave length.

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150-340 nm

230-450 nm

380-750 nm

350-780 nm

Cuticular transpiration takes places at.

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Morning

Noon

Evening

Night

The number of oxidation steps during one Krebs. cycle are.

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02

03

04

05

An outer flexible covering of ciliates is.

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Cell wall

Pellicle

Sheath

Cuticle

The soluble part of the cytoplasm called.

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Stoma

Gel

Matrix

Cytosol

Ascaris lumbricoldes is an intestinal parasite of.

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Horse

Man

Donkey

Monkey

Lactose is a

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Mono saccharides

Oli saccharides

Poly saccharides

Pectin

A neurotic disorder in slightly older girls is

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Anorexia nervosa

?Dyspepsia

Bulimia Nervos

Obesity

In 1966 Ernst Hacckel proposed a third kingdom called

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Monera

Plantae

Fungi

Protoctista

In earthworm exchange of gases mainly takes place through.

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Gills

Lungs

Skin

Ostla

The two different places of DNA joined together is called as.

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Dimeric DNA

Chimeric DNA

Trimeric DNA

Tetrameric DNA

Primary succession may start in a dry soil or rock is called.

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Hydrosere

Xerosere

Derosere

Desert

A natural process in which surface soil is removed by the action of water or wind is

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Corrosion

Attrition

Erosion

Weathering

Archaebacteria tolerate temperatures up to

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10^oC

40^oC

67^oC

120^oC

Once nitrate enters the plant cell it is reduced to.

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Nitrite

Ammonia

Carbohydrate

Proteins

There are__ muscles in the human body., most of which occur in pairs.

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650

630

660

645

Lithosphere includes.

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Air

Water

Gases

Earth soil

The spread of tumor cells and establishment of secondary area of growth is known as.

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Necrosis

Apoptosis

Metastasis

Epigenesis

Genetic code is a combination of 3 nucleotides in DNA which specify a particular

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Amino acid

Fatty acid

Vitamin

Steriod

Trisomy of chromosome 18 is found in.

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Down's syndrome

Edward syndrome

Patau syndrome

Jacob's syndrome

Nociceptors produce sensation of

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Touch

Pain

Warmth

Pressure

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