Question # 1

The basic element of organic compound is.

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Nitrogen

Carbon

Hydrogen

Oxygen

the most abundant organic compound in mammalian cell

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Water

Lipids

Proteins

Carbohydrates

To biological function of a protein is determined by its

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Primary structure

Secondary structure

Tertiary structure

Quaternary structure

Which one the following is not a lipid.

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Rubber

Chitin

Cholesterol

Cutin

The mRNA of the total cell RNA is about.

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3 - 4 %

1 - 2%

2 - 4%

3 - 5 %

Which class of molecule is the major component of cell membrane

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Phospolipid

Cellulose

Wax

Triglyceride

Peptide bonds are found in

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Carbohydrate

Lipid

Proteins

Inorganic compounds

The specific heat of vaporization of water Kcal/kg is

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457 kcal/kg

574 kcal/kg

547 kcal/kg

475 kcal/kg

Chemical nature of most cellular secretions is.

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Proteins

Lipids

Glyco proteins

Carbohydrates

Human tissues contains about 20% water in.

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Brain cells

Bone cells

Kidney cells

Skin cells

The most abundant carbohydrates in nature

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Starch

Maltose

Cellulose

Glucose

Which is the following is lipid.

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Chitin

Rubber

starch

Sucrose

Helical shape of polypeptide is due to presence within molecule.

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Covalent bond

Hydrogen bond

Peptide bond

disulphide bond

Keratin is an example of Fibrous protein present in.

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Muscles

Blood

Bones

Nails ad Hair

80% of total RNA in the cell comprises of.

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mRNA

tRNA

rRNA

RNA -DNA Hybrid

Cotton is apure

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Cellulose

Poly saccharide

Both a and b

None of these

The amino acid are mainly different from each other due to the type and nature of

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R- group

Amino group

Carboxyl group

Peptide bond

Glycogen is found abundantly in

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Liver

Muscles

Kidney

Both a and b

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