Question # 1

The skeleton of birds is light due to.

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Extension of lungs

Air chambers

Air spaces

Air sacs

Which one of the following kinds of atom does not occur in carbohydrates

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Carbon

Hydrogen

Nitrogen

Oxygen

Haem portion of hemoglobin is same to porphyrin ring with a difference of.

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Carbon atom

Hydrogen atom

Iron atom

Oxygen atom

Which of the following is not a fibrous protein.

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Keratin

My ocin

Fibrin

Hormones

An outer flexible covering of ciliates is.

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Cell wall

Pellicle

Sheath

Cuticle

Irreversible inhibitors form which bonds active site.

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Hydrogen bonds

Covalent bonds

Ionic bonds

Hydrophobic bond

The respiratory system is most efficient in ______

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Man

Bird

Fish

Snake

The cell wall consists of two over lapping shell in

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Euglenoids

Diatoms

Dinoflegellates

Brown algae

During photorespiration, glycine is converted into serine in the

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Golgi bodies

Chloroplast

Mitochondria

Ribosome

Which statement about ATP is not true

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It is used as an energy currency by all cells

It is formed only under aerobic condition

Some ATP is used to drive the synthesis of storage compounds

It provides energy for many different biochemical reaction

Myoglobin occurs in

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Red blood cells

White blood cells

Plasma

Muscle fibres

A respiratory protein which is present i all aerobic organism is.

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Haemoglobin

Cytochrome

Myoglobin

Cytochrone c

In 1953 Watson and Crick proposed structure of the

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RNA molecule

ATP molecule

DNA molecule

NAD molecule

Lichens are example of.

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Parasitism

Predation

Commensalism

Mutualism

Karyokinetic involves division of.

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Cell

Nucleus

Cell membrane

Cytoplasm

In oceans especially in tropical regions temperature of surface water is about

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10^oC

15^oC

25^oC

35^oC

Which one is absent in animal cells.

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spindle

Centriole

Chromatids

Phragmoplast

Cystic fibrosis patients lack a gene that codes for trans-membrane carrier of the

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Chloride ion

Sodium ion

Potassium ion

Calcium ion

All of the following bones are associated with coxal bones, except.

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Illum

Ischium

Pubis

Calvicle

A collection of bacterial and phage viruses clones containing a particular segment of DNA from the source cell is called.

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Expressing system

Genome

Genomic library

Recombinant DNA

Adult transgenic tobacco plants glowed when sprayed with the substrate.

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Luciferin

Myoglobin

Hemoglobin

Methionine

The most critical phase of mitosis, which ensures equal distribution of chromatids in the daughter cells is.

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Prophase

Tele phase

Meta phase

Anaphase

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