Question # 1

Which has maximum protein content?

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Ground nut

Cow milk

Egg

Wheat

Ascorbic acid is a chemical name of

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Vitamin D

Vitamin A

Vitamin C

Vitamin B₆

A polymer may be

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Linear

Branched

Cross linked

All of these

Denaturation of protein means the structure of protein is disrupted, indicate which factor foes not denature protein

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Heating protein

pH changes

Oxidising agent

Keeping pH 7.35

Factors affecting denaturation of proteins:

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Change in temp and pH

Strong reducing agent

Strong oxidizing agent

All of these

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

Terylene is madeby polymerization of terephthalic acid with

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Ethylene glycol

Phenol

Ethanol

Catechol

Which property is not present in lipids?

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Liquid

Solid or semi solid

Soluble in water

Form emultion

Which is not an enzyme

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Transverses

Lipase

Lyase

None of these

DNA is a polynucleic acid. The monomer is known as a nucleotide. What is not the component of the nucleoptide

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Phosphate group

Deoxy ribose sugar

Uracil base

Adenine base

Plastics are pollution problem because many plastics:

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Are made from petroleleum

Are very inflammable

Burn to produce toxic funes

Decompose to produce toxic products

Which one of the following statements of glucose and sucrose is incorrect?

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Both are soluble in water

Both are naturally occuring

Both are carbohydrates

Both are disaccharides

A fat or oil is characterised for extent of unsaturation by one of the following number, which one

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Rancidity number

Acid number

Iodine number

Saponicfication number

Vegetables oils are:

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Unsaturated fatty acids

Glycerides of unsaturated fatty acids

Essential oils obtained form plants

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

An example of water soluble vitamin is

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Vitamin D

Vitamin E

Vitamin A

Vitamin C

The reaction between fat and NaOH is called:

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Esterification

Hydrogenolysis

Fermentation

Sponification

Substances that render enzymes catalytically inactive are called

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Conenzymes

Substrates

Inhibitors

Apoezymes

Two or more similar monomers combine to form:

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Homopolymer

Copolymer

Ter polymer

Thermoplastic polymers

Which of the following is a constituent of nylon?

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Adipic acid

Styrene

Teflon

None of these

For every reaction occurring in the body three is at least one type of

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Enzyme

Vitamin

Protein

Amino acid

Which is not a steroid

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Cholesterol

Ergosterol

Phospholipids

None of these

Glycogen is stored in

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Animals

Plants

Soil

None of these

On hydrolysis of starch, we finally get

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Glucose

Fructose

Both

Sucrose

The simplest separating unit of a polymer is called:

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Monomer

Dimer

Trimmer

Macromer

Glycine at pH7 has the structure

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H₂N -- CH₂-- COOH

H₃N⁺-- CH₂-- COOH

H₂N -- CH₂COO^-

H₃N⁺-- CH₂-- COO^-

Which of the following is not an example of addition polymer?

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Polyethene

Polystyrene

Neoprene

Terylene

Which of these polymers is an addition polymer?

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Nylon-6,6

Polystrene

Terylene

Epoxy resin

The prosthetic group in glycoprotein is

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Carbohydrate

Fat

Vitamin

Nucleic acid

Which of the following is not a synthetic polymer?

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Polyethylene

PVC

Nylon

Cellophane

Which is a protein?

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Nylon

Rayon

Natural silk

Terylene

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