Question # 1

Cellulose does:

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Satisfy human appetite

Stimulates intestinal peristalsis

Gives fibre and bulk to the food

All of these

Glyptal polymer is obtained from glycerol on reacting with

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Malonic acid

Phthalic acid

Maleic acid

Acetic acid

Which behaves as insulator for animals body?

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Carbohydrates

Proteins

Fats

Skin

Which of the following is fully fluorinated polymer?

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Neoprene

Teflon

Thiokol

PVC

Soft drinks and baby feeding bottles are generally made up of

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Polyester

Polyurethane

Polyurea

Polystyrene

Bakelite is obtained from phenol by reacting with

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Acetaldehyde

Acetal

Formaldehyde

Chlorobenzene

β-D-glucose is a monomer for

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Strach

Cellulose

Glycogen

Protein

Purine derivative among the following bases is

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Thymine

Uracil

Guanine

Cytosine

Which of the following is a water soluble vetamin?

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Niacin

Riboflavin

Trypsin

Ascorbic acid

Terylene is madeby polymerization of terephthalic acid with

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Ethylene glycol

Phenol

Ethanol

Catechol

The high molecular weight materials which yield on hydrolysis the amino acids is called:

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Carbohydrates

Lipids

Fatty acids

Proteins

The three dimensional folding and twisting of a polypeptide chain give rise to

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Primary structure

Secondary structure

Tertiary structure

All of these tertiary

Polysaccharides are also called

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Crystals

Sugars

Liquids

None sugars

The fibre which is made form acrylonitrile as monomer

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PVC

Rayon fibre

Acrylic fibre

Polyester fibre

Enzymes, in the living systems

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Provide energy

Provide immunity

Transport oxygen

Catalyze biochemical processes

Which polymerization is free radical machanism based

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Addition

Condensation

Both a and b

None

Which of these polymers is an addition polymer

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Nylon 6,6

Polystyrene

Terylene

Epoxy resin

Plastics are a pollution problem because many plastics

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Are made from petroleum

Are very inflammable

Burn to produce toxic fumes

Decompose to produce toxic products

Glycogen is stored in

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Animals

Plants

Soil

None of these

The temp. and pressure used for PVC polymerization is

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10°C and 10 atm

20°C and 20 atm

52°C and 9 atm

100°C and 10 atm

Which is not an enzyme

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Transverses

Lipase

Lyase

None of these

The protein which only yield amino acids and their derivatives

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Simple proteins

Complex proteins

Derived protein

All of these

Peptide bond is a key feature in

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Polysaccharide

Proteins

Nucleotide

Vitamins

Which of the following polymers is used for weather resistant paints

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Arcylic resins

Polyvinyl acetate

Polystyrene

PVC

Enzymes catalyse all biological reactions occurring in the cell. What is true about an enzyme

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Enzyme is a small molecule

Enzyme is acidic in nature

Enzyme is a protein

Enzyme is a lipid

Teflon, styron and neoprene are all

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Copolymers

Condensation polymers

Homopolymers

Monomers

Protein are classified into

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Simple protein

Complex protein

Derived proteins

All of these

Polyester resins have special use in:

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Clothing

Paints

Emulsion

Floor covering

Polymer formation from monomers starts by

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Condensation reaction between monomers

Coordination reaction between monomers

Conversion of monomer to monomer ions by protons

Hydrolysis of monomers

Macromolecules or polymers are large molecules built up from small molecules called monomers. This hypothesis put forward by

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Schrodixger

Standinger

Lewis

Newton

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