Question # 1

The enzymes that bring about exchange of functional groups like phosphate are called

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Ligases

Lyases

Isomerases

Transferases

The specifie substance (metabolite) that fits on the enzyme surface and is converted to products is called

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Co-factor

Isoenzyme

Prosthetic group

Substrate

Which of the following bond is responsible for joining the amino acids in proteins?

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Metallic Bond

Di sulfide bond

Peptide Bond

The type of isomerism shown by alkyl halides is

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geometric

functional

positional

metamerism

An element that is not an essential par of proteins is

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O

N

H

S

An example of simple protein is

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lipoprotein

Cholesterol

lecithin

globulin

For a particular halogen, the reactivity of alkyl halides

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remains same with C-increase

decreases with C-increase

increases with C-increase

decreases with C-decrease

Amino acids react together to form the primary structure of proteins which is accompanied by

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addition of water

addition of ammonia

removal of ammonia

removal of water

Prosthetic groups are

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helical structures in protein

sulphur containing parts of protein

non-protein parts in compound proteins

sites for hydrogen bonding

Simplest Structure of a protein that has only covalent bonding between amino acids is

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2° structure

3°structure

1° structure

4° structure

Based on the physico-chemical properties, proteins may be classified into the following types

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Simple proteins

Compound proteins

Derived proteins

All of the above

The structure of protein helps protein to

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be in proper shape

attach substrate

perform is function

All of these

Enzymes are

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simple proteins

derived proteins

compound proteins

conjugated proteins

Enzymes have been classified on the basis of

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protein structure

prosthetic groups

type of reaction they catalyse

bonding in them

The most abundant protein in the human body is

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Collagen

Keratin

Myosin

Albumin

Proteins loose their ability to work

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by slight heating

by change in structure

by slight cooling

when inside the body

Abumins and globulins are defined as

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Derived protein

Conjugated protein

Fibrous protein

Simple Protein

Alpha helix and beta pleated sheath are secondary structures of protein which are maintained by

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dipole forces

non-polar interactions

ionic bonds

Hydrogen bonds

Fe+2 is the co-factor for

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Chrome oxidase

Glucose-6-phosphatase

Carbonic anhydrase

Hydrolase

The proteins which give an amino acid and non-protein group on hydrolysis are known as

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Derived protein

Albumins

Conjugated simple protein

Conjugated protein

Which of the following is not a category of proteins based upon their function?

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genetic

Regulatory

nucleo

structural

Increased concentration of enzyme alkaline phosphatase is a sign of

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hemophilia

heart disease

thrombosis

rickets

Lactoglobulin is found in

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nucleus

nerve cells

Plants only

muscles and in plants

Dehydrogenase is an erample of

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Transferase

Hydrolase

Lyase

Oxido-reductase

Succinic thiokinase is an enzyme of the type

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mutase

peroxidase

ligase

lyase

Collagen is a fibrous protein present most abundantly in

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heart

nucleus

connective tissues

Arteries

An example of bydrolase is

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Amylase

Lipase

Fumarase

A,C

All are examples of different classes of enzymes except

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Hydrolases

Isomerases

Oxido-reductases

Mutases

More Classes

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MDCAT Chemistry Chapter 19 Macromolecules Online Test MCQs With Answers

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