Biomolecules Test - 4

The nucleotide has three chemically distinct components. One is a heterocyclic compound, the second is a monosaccharide and the third a phosphoric acid or phosphate.

Nucleic acids carry hereditary information and are passed on from parental generation to progeny.

There are two hydrogen bonds between A and T pairing. There are three hydrogen bonds between G andC pairing. Each strand appears like a helical staircase.

Starch is a variant of this but present as a store house of energy in plant tissues.

Water is the most abundant chemical for the living organisms.

In adult men, about 60% of their bodies are water.

A nucleic acid containing deoxyribose is called deoxyribonucleic acid (DNA) while that which contains ribose is called ribonucleic acid (RNA).

Almost all enzymes are proteins. There are some nucleic acids that behave like enzymes. These are called ribozymes.

Nucleic acids carry hereditary information and are passed on from parental generation to progeny.

Exoskeletons of arthropods, have a complex polysaccharide called chitin. These complex polysaccharides are heteropolymers.

DNA differ from RNA in having Thymine. Thymine is absent in RNA. RNA contain uracil in place of thymine.