Question # 1

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 enzyme which is found in saliva, accelerates the conversion of starch into sugar is

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Pepsin

Thrombin

Ptyalin

Fumarase

Increased concentration of enzyme alkaline phosphatase is a sign of

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hemophilia

heart disease

thrombosis

rickets

Abumins and globulins are defined as

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Derived protein

Conjugated protein

Fibrous protein

Simple Protein

All are examples of different classes of enzymes except

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Hydrolases

Isomerases

Oxido-reductases

Mutases

The protein component of enzyme ls called

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apoenzyme

proenzyme

holoenyme

co-enzyme

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

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Urease

Zymase

Invertase

Sucrase

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

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Lyases

Ligases

Transferases

Kinses

The structure of protein helps protein to

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be in proper shape

attach substrate

perform is function

All of these

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

An example of regulatory protein is

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nucleoprotein

hemoglobin

lactoglobulin

thyroxine

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

The type of isomerism shown by alkyl halides is

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geometric

functional

positional

metamerism

Enzymes are

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simple proteins

derived proteins

compound proteins

conjugated proteins

Lactoglobulin is found in

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nucleus

nerve cells

Plants only

muscles and in plants

Proteins have linkage between amino acids

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imide

amide

ester

ether

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

Dehydrogenase is an example of

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ligase

oxidoreductase

lyase

hydrolase

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

UV rays inactivate enzymes because they

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change sequence of amino acids of enzymes

They add prosthetic group to them

They increase their specificity

affect structure of enzymes

An example of simple protein is

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lipoprotein

Cholesterol

lecithin

globulin

More Classes

Other Links

MDCAT Chemistry Chapter 18 Carboxylic Acids Online Test MCQs With Answers

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