Column-I | Column-II | ||
a. | Catalyse the transfer of specific groups other than hydrogen from one substrate to other | (i) | Oxido- reductases |
b. | Catalyse the breakdown of larger molecules into smaller with addition of water |
(ii) | Lyases |
c. | Catalyse removal of groups from substrates by mechanism other than hydrolysis leaving double bonds |
(iii) | Transferases |
d. | Catalyse linking together of 2 compounds | (iv) | Ligases |
(v) | Hydrolases |
(a) | The inhibitor closely resembles the enzyme in its molecular structure. |
(b) | Inhibitor competes with the substrate for substrate binding site of the enzyme. |
(c) | It leads to decline in activity of the enzyme. |
(d) | Malonate inhibition by succinate dehydrogenase is an example of the same. |
Column I | Column II | ||
a. | (i) | Alanine | |
b. | (ii) | Serine | |
c. | (iii) | Glycine | |
d. | (iv) | Glycerol |
Assertion(A): | The acid-insoluble fraction contains lipids and proteins. |
Reason(R): | The molecular weight of proteins and lipids is in the range of ten thousand daltons and above. |
1. | Both (A) and (R) are true and (R) is the correct explanation of (A). |
2. | Both (A) and (R) are true but (R) is not the correct explanation of (A). |
3. | (A) is true, (R) is false. |
4. | (A) is false, (R) is true. |
Column -I | Column-II | ||
a. | Cellulose | (i) | Storehouse of energy in plants |
b. | Inulin | (ii) | Exoskeleton of arthropods |
c. | Starch | (iii) | Polymer of fructose |
d. | Chitin | (iv) | Structural element of plant cell wall |
a. | Alanine is a sulphur containing amino acid |
b. | Tyrosine is an aromatic amino acid |
c. | Uracil is a substituted pyrimidine found in nucleic acids containing deoxyribose sugar |
d. | The nitrogenous bases are projected more or less perpendicular to the sugar-phosphate backbone of polynucleotide chain |
Column I | Column II | ||
a. | The structural component of the cell wall of fungi | (i) | Malonate |
b. | Competitive inhibitor of succinic dehydrogenase |
(ii) | Sucrose |
c. | Glycosidic bond | (iii) | Chitin |
d. | Alkaloid used as painkiller | (iv) | Morphine |
Assertion(A): | When glucose is catabolised to lactic acid, energy is liberated. |
Reason(R): | In an exothermic reaction, the energy level of ‘Product’ (lactic acid) is lower than that of ‘Substrate’ (glucose). |
1. | Both (A) and (R) are true but (R) is not the correct explanation of (A) |
2. | Both (A) and (R) are true and (R) is the correct explanation of (A) |
3. | (A) is true, (R) is false |
4. | (A) is false, (R) is true |