Biochemistry

The following compounds are phospholipids:

A. Lecithin and sphingomyelin

B. Plasmalogens and cerebrosides

C. Diacylglycerols and cephalins

D. Glycerol and gangliosides

Target of drug is?

A. Receptors

B. transporters

C. Enzymes

Choose the correct option regarding to principles of drug action?

A. Stimulation

B. Cytotoxic action

C. Irritation

D. All of the above

Drug and their metabolites are not excreted in?

A. Urine

B. Faeces

C. Milk

D. Inhaled air

Biotransformation of drugs may lead to?

A. Inactivation

B. Active metabolite from an active drugs

C. Activation of inactive drug(prodrug)

D. All of the above

Primary sites of drug metabolism in our body?

A. Kidneys
B. Intestine
C. Liver
D. Lungs

In DNA structure a adenine makes the hydrogen bond only with

A. Thiamine
B. Guanine
C. Cytosine
D. Uracil

In DNA structure a adenine makes the hydrogen bond only with

A. Thiamine
B. Guanine
C. Cytosine
D. Uracil

In Z-DNA confirmation of DNA helix the number of base pairs present in each turn is

A. 10

B. 11

C. 12

D. 13

The sugar present in RNA is

A. Ribose

B. Deoxyribose]

C. Fructose

D. Pentose