Question # 1

A polymeric substance that is formed in the liquid state and then hardened to a rigid solid is called a:

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Fiber

Plastic

Vanish

Polyamide resin

Vegetable oils are

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Unsaturated fatty acids

Glycerides of unsaturated fatty acids

Glycerides of saturated fatty acids

Essential oils obtained from plants

The product of addition polymerization reaction is

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PVC

Nylon

Terylene

Polyamide

RNA is a polymer of nucleotide which consist of three components. Which one is not the component in the nucleotide of an RNA

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D-Ribose

Wracil base

Prosphate group

Thyamine base

Cotton is ______% cellulose

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90

100

99

30

The raw material to form nylon is

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Adipic acid

Butadiene

Isoprene

Ethylene

Which of the following is a polyamide?

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Nylon

Orlon

Teflon

Terylene

Which one of the following is the most abundant organic substance found in nature

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Fructose

Starch

Glucose

Cellulose

The substance upon which an enzyme acts is known as its

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Domain

Field

Substrate

Reactant

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

How is the secondary structure of protein stabilized

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Through hydrogen bonding

Through ionic bonding

Through van der wall forces

Through covalent bonding

Glycogen is stored in

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Animals

Plants

Soil

None of these

The degree of unsaturation in fats or oils is usually measured by numbers of grams of iodine required by 100 grmas of fat, this is called

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Oil number

Saturation number

Iodine number

Un saturation number

In macromolecules DP stands for

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Dissociation parameter

Dissociation polymer

Degree of polymerization

None of these

Two vitamins absorbed from intestine along with fats are

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A, D

A, B

A, C

D, B

Terylene is madeby polymerization of terephthalic acid with

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Ethylene glycol

Phenol

Ethanol

Catechol

Enzymes are catalysts which contain other than carbon and hydrogen one other element

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Oxygen

Sulphur

Phosphorus

Iodine

Major food factors are:

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Fats and oils

Carbohydrates

Protiens

All of these

The fibre which is made form acrylonitrile as monomer

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PVC

Rayon fibre

Acrylic fibre

Polyester fibre

One of the followings is not type of polymer

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Homopolymer

Copolymer

Heteropolymer

Terpolymer

Activity of the enzyme is reduced by

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Temperature

Concentration

pH

Inhibitors

Which is a protein?

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Nylon

Rayon

Natural silk

Terylene

Simple sugars are :

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Monosaccharides

Disaccharides

Oligo saccharides

Trisaccharides

Which of the following is not present in RNA?

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Uracil

Thymine

Ribose

Phosphate

Which of the following is not present in nucleotide?

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Guanine

Cytosine

Adenine

Tryoxine

Peptide bond is a key feature in

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Polysaccharide

Proteins

Nucleotide

Vitamins

Which of the following is fully fluorinated polymer?

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Neoprene

Teflon

Thiokol

PVC

What is the most common catalyst used in hydrogenation of oils

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Cobalt

Nickel

Tungsten

Copper

Which of the following enzymes brings about the hydrolysis of fats?

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Urease

Maltase

Zymase

Lypase

Which of these polymers is an addition polymer

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Nylon 6,6

Polystyrene

Terylene

Epoxy resin

Purines include

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Adenine

Guanine

Both a and b

None

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