Tiêu đề 09. BIOMOLECULES.pdf ✅

PAPER 1 (1.) Match the following : a) Vinblastin i. Alkaloid b) Ricin ii. Polymer c) Codeine iii. Drug d) Gum iv. Poisionous (1) a-iii, b-iv, c- ii, d- i (2) a-i, b-ii, c- iv, d- iii (3) a-iii, b-iv, c- i, d- ii (4) a-iv, b-iii, c- i, d-iv (2.) Which of the following are polymeric : (1) Proteins (2) Polysaccharides (3) Nucleic acids (4) All of these (3.) Given below are two statements : Statement I : Molecules in the insoluble fraction with exception of lipids are polymeric substane. Statement-II : Some secondary metabolites have ecological importance. Choose the correct answer from the option given below: (1) Both Statement I and Statement II are incorrect (2) Statement I is correct but Statement II is incorrect (3) Statement I is incorrect but Statement II is correct (4) Both Statement I and Statement II are correct (4.) Which of the following is correct according to given diagrammatic representation (1) It is a nucleoside present in RNA (2) It is a nitrogenous base present in DNA (3) It is a nitrogenous base present in RNA (4) It is a nitrogenous base present in DNA and RNA (5.) Inulin consist of : (1) Only glucose (2) Only fructose (3) Only maltose (4) Protein (6.) Which of the following is true : (1) Polysaccharides are starting part of sugar chain (2) Cellulose is homopolymer
(3) The starch2 I , is red in colour (4) All of these (7.) A  -plated sheet organisation in a polypeptide chain is an example of : (1) 1 structure (2) 2 structure (3) 3 structure (4) 4 structure (8.) Which of the following is not true : (1) In B DNA, the number of base pair is 10 (2) The pitch of DNA is 3.4Å (3) There are two hydrogen bond between A and T (4) There are three hydrogen bond between G and C (9.) Given below are two statements : Statement I : The living state is a non equilibrium steady state to be able perform work. Statement-II : Living state and metabolism are synonymous Choose the correct answer from the option given below: (1) Both Statement I and Statement II are incorrect (2) Statement I is correct but Statement II is incorrect (3) Statement I is incorrect but Statement II is correct (4) Both Statement I and Statement II are correct (10.) Choose the type of enzyme involved in the following reaction. S G S S S G − + → −   + (1) Dehydrogenase (2) Transferase (3) Hydrolase (4) Lygase (11.) Find correct matching is/are : (a) Watson - Crick model = Secondary structure (b) Pocket of enzyme = 'Active site' (c) Trypsin = hormone (1) a and conly (2) a and b only (3) a only (4) a, b and c (12.) Zinc is a cofactor for the enzyme : (1) Proteolytic (2) Transferase (3) Lyases (4) Ligases (13.) Chitinous exoskelton of arthrodpods is formed by the polymerisation of : (1) N -acetyl glucosamine (2) Lipiglycans (3) D-Glucosamine (4) Keraitin sulphate (14.) Given below are two statements : Statement I :
Metabolism provides a mechanism for the production of energy Statement II : Living organism exist in an equilibrium state. Choose the correct answer from the options given below. (1) Both Statement I and Statement II are incorrect (2) Statement I is correct but Statement II is incorrect (3) Statement I is incorrect but Statement II is correct (4) Both, Statement I and Statement II are correct (15.) Given below are two statements : Statement I : Each of metabolic reactions results in transformations of biomolecules Statement II : Protein with cataytic power are named enzymes Choose the correct answer from the options given below. (1) Both Statement I and Statement II are incorrect (2) Statement I is correct but Statement II is incorrect (3) Statement I is incorrect but Statement II is correct (4) Both, Statement I and Statement II are correct (16.) In the given graphs which graphs represents, activation energy without enzyme and with enzyme. Choose the correct option : (1) A = Activation energy with enzyme (2) B = Activation energy with enzyme (3) B = Activation energy without enzyme (4) 1 and 3 both (17.) Which of the following is zwitterion : (1) (2) (3) (4) (18.) Prosthetic group is part of an enzyme it is : (1) Loosely attached organic compound (2) Tightly attached inorganic compound
(3) Tightly attached organic part (4) Loosely attached inorganic compound (19.) What are pockets in an enzyme : (1) Crevices made due to chain criss - crossing in tertiary structure of protein (2) An active sites of an enzyme (3) Site where substrates fit (4) All of these (20.) Match the following column I and column II : Column I Column II a) Acidic amino acidn I. Lysine b) Aromatic amino acid ii. Valine c)Neutral amino acid iii. Glutamic acid d) Basic amino acid iv. Tyrosine (1) a-iii, b-iv, c-ii, d-i (2) a-ii, b-iii, c-iv, d-i (3) a-i, b-iv, c-iii, d-ii (4) a-iv, b-iii, c-i, d-ii (21.) Which one of the following pairs of nitrogenous bases of nucleic acids, is wrongly matched with the category mentioned against it : (1) Guanine, adenine-purines (2) Adenine, thymine-purines (3) Thymine, uracil-pyrimdines (4) Uracil, cytosine-pyrimidines (22.) Haemoglobin consists of : (1) 2 and 2 subunits (2) 3 and 3 subunits (3) 4 and 4 subunits (4) 1 and 1 subunits (23.) In a certain process a molecule of glucose converts into lactic acid in skeletal muscle. Can you tell which type of process is this : (1) Anabolic (2) Catabolic (3) Amphibolic (4) All of these (24.) Almost all enzymes are proteins and are composed of one or several polypeptide chains. However there are a number of cases in which non-protein constituents called as : (1) Apoenzyme (2) Co-factor (3) Allosteric (4) Holoenzyme (25.) A typical fat molecule is made up of : (1) One glycerol and one fatty acid molecule (2) Three glycerol and three fatty acid molecules (3) Three glycerol molecules and one fatty acid molecule (4) One glycerol and three fatty acid molecules.