Biology : Biomolecules

Usually the activity of the enzymes is optimum at normal body temperature. At about 0$°$C the activity of the enzyme is

• minimum

• maximum

• Both (a) and (b)

• None of these

Non-reducing sugars have

• free CHO group and bound CO group

• free CO group and bound CHO group

• both CO and CHO free groups

• neither free CO nor free CHO groups

Which vitamin should not be stored ?

• Calciferol

• Retinal

• Niacin

• Ascorbic acid

Which enzyme converts glucose into alcohol ?

• Zymase

• Diastase

• Invertase

• Lipase

The enzyme, which combines with non-protein part to form a functional enzyme known as :

• co-enzyme

• holoenzyme

• apoenzyme

• prosthetic group

Major role of minor elements inside living organisms is to act as :

• binder of cell structure

• constituent of hormone

• building blocks of important amino acids

• cofactor of enzymes

Which enzyme is most specific ?

• Trypsin

• Pepsin

• Sucrose

• Nuclease

Kuhne:

• discovered parathyroid

• coined the term enzyme

• coined the term gene

• discovered enzyme

Defect in amino acid metabolism may results in :

• albinism

• porphyria

• Wilson's disease

• phenylketonuria

Which of the following is not a co-enzyme?

• NAD

• NADP

• FAD

• ATP