Question # 1

Release of nitrates by saprophytic bacteria helps in

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Carbon cycle

Oxygen cycle

Nitrogen cycle

Water cycle

The respiratory system is most efficient in ______

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Man

Bird

Fish

Snake

Co-enzyme is a

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Covalently bonded non-protein part of an enzyme

Loosely bonded non-protein part of an enzyme

Co-factor consists of metal ions

None of these

Myoglobin occurs in

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Red blood cells

White blood cells

Plasma

Muscle fibres

Lytic cycle completion occurs about

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15 min

25 Min

35 Min

05 Min

Chlorophyll molecule contains except.

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Magnesium

Iron

Calcium

Phosphorus

Algae which take part in building coral reefs along with coral animals are

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Brown algae

Green algae

Algae

Diatoms

Which one is not the phase of Calvin cycle.

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Carbon fixation

Reduction

Regeneration of CO2 acceptor

Phosphorylation

Five kingdom system of classification proposed by Margulis and Schwartz is not based on

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Genetics

Cellular organization

Nucleic acid

Mode of nutrition

A structure within a cell that perform specific function is called

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Molecule

Atom

Organelle

Element

Cell wall is secreted by

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Protoplasm

Nucleoplasm

Ribosome

Golgi complex

Which of the following is not found in all bacteria is

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Cell membrane

A nucleoid

Flygella

None of these

The percentage of calcium in human body is.

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1%

2%

3%

4%

The fluid that surrounds the Thylakoid is called

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Matrix

Stroma

Medium

Cytoplasm

The male gametophyte of an angiosperm is the

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Anther

Embroyo sac

Microspore

Germinated pollen grain

Polymorphism is a characteristic of members of phylum.

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Porifera

Cnidaria

Annelida

Arthropoda

The phylum which is exclusively marine is

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Canidaria

proifera

Echinadermata

Annelida

All bryophytes share certain characteristics which are

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Reproductive cells in protective chambers

A waxy cuticle, true leaves and reproductive cells in protective chambers

Vascular tissues, true leaves and a waxy cuticle

Vascular tissue and a waxy cuticle

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