Question # 1

The other name of cross linked polymers is

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Linear polymer

Branched polymer

Inter connected polymers

None of these

In which of these processes are smell organic molecules made into macromolecules?

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The cracking of petroleum fractions

The fractional distillation of crude oil

The polymerization of ethane

The hydrolysis of proteins

Activity of the enzyme is reduced by

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Temperature

Concentration

pH

Inhibitors

Which one of the following elements is not present in all proteins

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Carbon

Hydrogen

Nitrogen

Sulphur

Which of the following is a molecular diseases?

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Allergy

Cancer

German measles

Sickle cell anemia

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

Sterols, vitamin D and terpenese belong to

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Simple lipids

Complex lipids

Derived lipids

None

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

The metal present in blood is

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Al

Hg

Cu

Fe

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

(CH₂O)_nis general formula for

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Monosaccharides

Oiligosaccharides

Polysaccharides

None of these

Vegetables oils are:

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Unsaturated fatty acids

Glycerides of unsaturated fatty acids

Essential oils obtained form plants

None of these

Glyptal polymer is obtained from glycerol on reacting with

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Malonic acid

Phthalic acid

Maleic acid

Acetic acid

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

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Polyethene

Polystyrene

Neoprene

Terylene

The monomeric units of starch is/are

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Glucose

Fructose

Glucose and fructose

Mannose

Which property is not present in lipids?

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Liquid

Solid or semi solid

Soluble in water

Form emultion

Glycogen is stored in

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Animals

Plants

Soil

None of these

Bakelite is a product formed form

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Reaction of formaldehyde with phenol

Reaction of polyethylene with phenol

Reaction of polypropylene with acid

It is a natural product

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

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Urease

Maltase

Zymase

Lypase

The simplest separating unit of a polymer is called:

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Monomer

Dimer

Trimmer

Macromer

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

Oxidation reduction is done by

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Oxidoreductase

Lipases

Lyase

None of these

Protein may have

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Primary structure

Secondary structure

Tertiary structure

All of these

Monosaccharides and oligosacchradies are generally called as

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Crystals

Sugars

Liquids

Non-sugars

Which teat is not given by both glucose and fructose

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Give yellow ppt of CHl₃with alkaline aqueous iodine

With 2, 4-DNPH give yellow ppt of hydrazone

Evolve H₂gas with Na metal

Oxidised with [Ag(NH₃)₂]⁺i.e. Tollen's reagent

Cotton is ______% cellulose

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90

100

99

30

Which of the following is fully fluorinated polymer?

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Neoprene

Teflon

Thiokol

PVC

Which of the following has magnesium?

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Carbonic anhydrase

Haemocyanin

chlorophyll

Vitamin B₁₂

The polymers which can be re-softened again and again are caled

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Thermoplastic

Thermosetting

Both a and b

None

Vegetable oils are

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Unsaturated fatty acids

Glycerides of unsaturated fatty acids

Glyccerides of saturated fatty acids

Essential oils obtained from plants

Which of these polymers is an addition polymer

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Nylon 6,6

Polystyrene

Terylene

Epoxy resin

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