NTA Abhyas NEET2020ChemistryBiomoleculesPractice
Which of the following statements are CORRECT? I. Amino acids are organic compounds containing an amino group and an acidic group as substituents on the same carbon i.e., the α-carbon. II. Primary metabolites have identifiable functions and play known roles in normal physiological processes. III. Ribulose Bisphosphate Carboxylase-Oxygenase (RUBISCO) is the most abundant protein in the whole of the biosphere. IV. Star
Options
- AI and III
- BII and IV
- CI, II, III and IV
- DI, II and III
Correct answer
D. I, II and III
Step-by-step solution
Amino acids contain acidic and amino groups attached to the carbon. Metabolites can be primary or secondary. Primary metabolites are those that take part in primary functions like carbohydrates, proteins etc. Secondary are those that do not directly take part in function. Examples: Alkaloids, morphine etc. RUBISCO is the most abundant protein in the whole biosphere while collagen is abundant in animal world. Starch is homopolysaccharide that has branched and straight chains and thus can form secondary helical struc