Question # 1

Glucose is converted into ethanol by the enzyme present in the yeast

Choose an answer

Urease

Zymase

Invertase

Sucrase

Dehydrogenase is an erample of

Choose an answer

Transferase

Hydrolase

Lyase

Oxido-reductase

Collagen is a fibrous protein present most abundantly in

Choose an answer

heart

nucleus

connective tissues

Arteries

Third order of protein structure refers to

Choose an answer

Bending of protein chain

Three-dimensional structure of protein

Number and sequence of amino acids

Site of disulphide bonds

The most abundant protein in the human body is

Choose an answer

Collagen

Keratin

Myosin

Albumin

Prosthetic groups are

Choose an answer

helical structures in protein

sulphur containing parts of protein

non-protein parts in compound proteins

sites for hydrogen bonding

Fe+2 is the co-factor for

Choose an answer

Chrome oxidase

Glucose-6-phosphatase

Carbonic anhydrase

Hydrolase

Abumins and globulins are defined as

Choose an answer

Derived protein

Conjugated protein

Fibrous protein

Simple Protein

Dehydrogenase is an example of

Choose an answer

ligase

oxidoreductase

lyase

hydrolase

UV rays inactivate enzymes because they

Choose an answer

change sequence of amino acids of enzymes

They add prosthetic group to them

They increase their specificity

affect structure of enzymes

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

Choose an answer

Ligases

Lyases

Isomerases

Transferases

An element that is not an essential par of proteins is

Choose an answer

O

N

H

S

The enzymes that catalyse the addition or removal of ammonia are:

Choose an answer

Lyases

Ligases

Transferases

Kinses

An example of regulatory protein is

Choose an answer

nucleoprotein

hemoglobin

lactoglobulin

thyroxine

Which of the following is the element not present in all proteins?

Choose an answer

Carbon

Hydrogen

Nitrogen

Sulphur

Proteins loose their ability to work

Choose an answer

by slight heating

by change in structure

by slight cooling

when inside the body

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

Choose an answer

dipole forces

non-polar interactions

ionic bonds

Hydrogen bonds

Denaturation of proteins is often characterised by

Choose an answer

Loss of biological activity

Aiways being irreversible

Being ereater the lower the temperature

Changes in primary structure

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

Choose an answer

Derived protein

Albumins

Conjugated simple protein

Conjugated protein

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

Choose an answer

2° structure

3°structure

1° structure

4° structure

An example of simple protein is

Choose an answer

lipoprotein

Cholesterol

lecithin

globulin

Helical structure of proteins is stabilized by

Choose an answer

Peptide bond

Dipeptide bond

Van der Wall's forces

Hydrogen bonding

L-asparginase is helpful in treatment of

Choose an answer

skin disease

blood cancer

heart failure

obstructive jaundice

The structure of protein helps protein to

Choose an answer

be in proper shape

attach substrate

perform is function

All of these

Succinic thiokinase is an enzyme of the type

Choose an answer

mutase

peroxidase

ligase

lyase

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

Choose an answer

genetic

Regulatory

nucleo

structural

Increased concentration of enzyme alkaline phosphatase is a sign of

Choose an answer

hemophilia

heart disease

thrombosis

rickets

The most complex strueture a single polypetide can assume is

Choose an answer

1° structure

2°structure

3° structure

4° structure

More Classes

Other Links

MDCAT Chemistry Chapter 19 Macromolecules Online Test MCQs With Answers

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer