NCERT Solutions for Chapter: Biomolecules, Exercise 1: MULTIPLE CHOICE QUESTIONS

Sugars are technically called carbohydrates, referring to the fact that their formulae are only multiple of C(H2O). Hexoses therefore have six carbons, twelve hydrogens and six oxygen atoms. Glucose is a hexose. Choose from among the following another hexose. 

When you take cells or tissue pieces and grind them with an acid in a mortar and pestle, all the small biomolecules dissolve in the acid. Proteins, polysaccharides, and nucleic acids are insoluble in mineral acid and get precipitated. The acid-soluble compounds include amino acids, nucleosides, small sugars, etc. When one adds a phosphate group to a nucleoside, one gets another acid-soluble biomolecule called 

A homopolymer has only one type of building block called monomer repeated 'n' number of times. A heteropolymer has more than one type of monomer. Proteins that are heteropolymers usually made of

Proteins perform many physiological functions. For example, some functions as enzymes. Which of the following represents an additional function that some proteins discharge?

Glycogen is a homopolymer made of

The number of 'ends' in a glycogen molecule would be

The primary structure of a protein molecule has

Enzymes are biocatalysts. They catalyse biochemical reactions. In general they reduce activation energy of reactions. Many physico-chemical processes are enzyme mediated. Which of the following reactions is not enzyme-mediated in biological system?