Question

1. what are macromolecules? give examples.
2. ILLUSTRATE A GLYCOSIDIC , PEPTIDE, AND A PHOSPHO- DIESTER BOND.
3. WHAT IS MEANT BY TERTIARY STRUCTURE OF PROTEINS​

Answer 1

Answer:

1. macromolecules are the molecules which are are small in size but bigger than micro molecules
2. good morning dear
3. have a beautiful morning ahead

Answer 2

Answer:

$\huge\bigstar\underbrace{\mathtt\red{Ã} \mathtt\red{Ñ} \mathtt\purple{S} \mathtt\blue{W} \mathtt\pink{Ê} \mathtt\pink{R}}\bigstar★$

Explanation:

1. Macromolecules are large complex molecules present in colloidal state in intercellular fluid. They are formed by the condensation of low molecular weight micromolecules and hence are polymeric in nature. Polysaccharides, proteins, and nucleic acids are common examples of macromolecules.

2.

(a) A glycosidic bond is formed normally between C-1 and C-4, of adjacent monosaccharide units.

(b) Peptide bond is a covalent bond that is formed between two adjacent amino acids by condensation of NH2 gp of one amino acid and C=O group of other amino acid.

(c) Phosphodiester bond is a strong covalent bond formed between phosphate and two adjacent sugar groups. Such bonds form the sugar-phosphate backbone of nucleic acids.

3. The tertiary structure of a protein refers to the overall three-dimensional arrangement of its polypeptide chain in space. It is generally stabilized by outside polar hydrophilic hydrogen and ionic bond interactions, and internal hydrophobic interactions between nonpolar amino acid side chains