Page 1 : Guru Study Centre, , , , , , , , Ss ern Bio-| (Biomolecules), Assignment - Full, 1. a oe compounds like sulphate, phosphate, etc., 8. Choose the element which is negligible in living, (a) acid soluble pool —(b)_acid insoluble fraction matter., (9 both (a) and (b) —(d)_none of these. (a) Si (b) Mg, 2. The four elements called “big-four” which make up 95% (0) Ca @s, cena pea pa Hinge 9, All the carbon compounds obtained from living, @ CHOS (d) CN0,P tissues are named as ,, biomol nds, 3. Thesum total composition of acid soluble and acid insoluble . ‘ oan sig . on lc, fraction represents the entire composition of em, (a) dead cells (b) gene pool 10, Identify the term ‘ash’ in ot whi tease, (c) cellular pool (d) gene library. sample analysis from the statements given :, 4. Biomolecules are (a) Organic compounds oxidised to gaseous form (CO, and, (a) inorganic materials water vapour) after burning of the tissue, (b) organic materials (0) The material left after buming the tissue which contains, ‘ ac inorganic elements (e.g., calcium, magnesium etc), (Q all the carbon compounds obtained from living 6) ‘Comsairts ternotio in the Forni of passe, @ Na DNA d RNA. (d) Compounds which may be soluble in intracellular fluid, ly ant i, . Grinding of a living tissue in trichloroacetic acid, 5. Which of the two groups of the given formula is involved in il —- aon ‘ol the fiom compounds, peptide bond formation between different amino acids? like sulphate, phosphate etc, which are categorised, in, t (@) acid insoluble fraction, Ou.N—c—coon® (b) acid soluble fraction, | (€) Both (a) and (b), @® (d) not found In cellular pool, (a) 2 and 3 (bo) 1 and3 12. Amino acids are ic compounds and are, () land4 (d) 2and4 called a-amino acids. Why?, 6. Which of the following statements are correct? (a) ish oan a ks gi caleedind eoriphy ae, I, Relative abundance of carbon and hydrogen different carbons, with respect to other elements is higher in any (b) Amino acids are organic compounds containing an, living organisms. ‘ive j amino group and an acidic group as substituents on the, Il. Living organisms more nitrogen ani same carbon, oxygen per unit mass than inanimate objects (c) Amino acids are inorganic compounds containing an, (e.g., earth crust). amino group and acidic group as substituents on two, IIL. Alll the elements present in a sample of earth’s different carbons, crust are also present in a sample of living tissue. (d) Amino acids are inorganic compounds containing an, IV. Living organisms have more Ca, Mg, Na in them amino group and acidic group as substituents on the, than inanimate object. same carbon, (a) All of these (b) All except IV Zi 2 ¥, (©) Only (d) None of these 13. —— —_ the, 7. After doing the chemical analysis of organic positions., , compounds found in living organisms, two, fractions were observed namely., , (@) Acid soluble pool and acid insoluble pool, , (b) Carbon pool and hydrogen poo!, , (c) Inorganic poo! and organic pool, , (d) Aquous poo! and non-aquous pool, , (a) Hydrogen, carboxy! group, amino group and a variable, group (R), , (b) Two carboxyl groups amino group and OH, , {c) Two hydrogen, one carboxy! group, amino group and a, variable group (R), , {d) Twoaminogroups, one hydrogen and one carboxyl group, , 93

Page 2 : 14., , 15., , 16., , 17., , 19., , Which of the following statements is incorrect?, (a) All the elements present in a sample of earth's crust are also present in a sample of living tissue, , (b) Relative abundance of carbon and hydrogen with respect to other elements is higher in any living organisms than, in earth's crust, , (c) Living organisms have more nitrogen and oxygen per unit mass than in animate object (e.g. earth crust), (d) Living organisms have more Ca, Mg, Na in them than in animate object, One of the following is almost not found in living organism —, (a) Si (b) Mg (c)Ca (¢)s, , Tissui, , Grinding in ClgCCOOH, , Thick slurry, Stained through cheesecloth, , 2 fractions are obtained, , A. Filtrate / Acid soluble pool _B. Retentate acid insoluble fraction or pellet, , |. Molecular weight ranging from 18 to 800 daltons (Da) approximately, , Il. Has four types of organic compounds - protein nucleic acid, polysaccharide and lipid, Ill. Contain chemicals that have molecular weight more than 800 Da., , IV. Has monomers, , V. Has generally polymers, , VI. Represent chemical rough composition of cytosol, , VII. Represent the framework of cytoplasm and cell organelles, , Which of the following is the correct statements (I to Vil) for Aand B, , , , A B, (a) il, iV, Vi, Vil, o [TV TM, V, Vil, (c) V,Vi UM, V, Vil, (d) Viv {l, IV, Vi, Vil, Lipid come under acid insoluble fraction during analysis of chemical composition of tissues. Why?, (a) It has low molecular weight, (b) Ithas high molecular weight, (c) Itis polymer, , (d) On grinding, the biomembranes are broken into pieces and form insoluble vesicles, , The inorganic compounds like sulphate, phosphate, etc., are found in —, , (a) Acid soluble pool (b) Acid insoluble fraction, , (c) Both acid soluble pool and acid insoluble fraction (d) Not found in cellular pool, , All of the following statements are correct except —, , (a) Elemental analysis gives elemental composition of living tissues, , tb) Analysis for compound gives an idea of the kind of organic and inorganic constituents present in living tissues, (0) In plant ash contains carbon in maximum amount, , (d) Both a and b, , The four elements called“ Big-four’ which make up 95% of all elements found in a living system are (a)C,H,O,N (b) C,H, O, P (c) C,H, 0, S (d)C, N,O,P

Page 3 : 1,, , 2., , Assignment-2, , In amino acid is a, , (a) Substituted methane (b) Substituted ethane, , (c) Any acid having amino group (d) Derivative of indoacetic acid, , In order to produce amino acids from methane how many substituents should occupy the valency positions of the, carbon, , (a)1 (b)3 (c)2 (d)4, , Protein amino acids are called , (a) @-amino acids (b) B-amino acids (c) Y-amino acids (d) O-amino acids, The number of amino and carboxyl groups in an amino acid is never , , , , , , , , , , , , , , , , , , , , , (a) 1 and 1 (b) 2 and 1 (c) 3and 1 (d) 1 and2, Which of the two groups of following formula involved in peptide bond between different amino acids?, H2, ‘yN—C—cooH?, Fé, (a)2and3 (b) 1and3 (c) 1and 4 (d)2and4, Based up on the number of NH, and COOH amino acids are (a) 3 types (b) 2 types (c) 4 types () 20 types, Which one is correct?, Acidic Amino Acids Basic Amino Acids Neutral Amino Acid, (a) Glutamic acid Lysine Valine, (b) Lysine Valine Glutamic acid, (c) Glutamic acid Valine Lysine, (d) Lysine Glutamic acid Valine, The aromatic amino acid(s) is (are) (a) Typrosine (b) Phenylalanine (c) tryptophan (d)All, i i 4}, H3N-CH-COOH == H3N-CH-COOH” == H3gN-CH-COO™, (A) (B) (C), , Which of the above is Zwitterionic form?, (aA - (b)C (c)B (d) All, , 95

Page 4 : 10. Which of the following is a saturated fatty acid?, , (a) Oleic acid (b) Linoleic acid, (c) Arachidonic acid — (d)_-Palmitic acid, , 11, Study the given statements and select the correct option., , 12., , 13., , 14., , 15., , 16., , 17., , 18., , (i) Carbohydrates, proteins, nucleic acids and lipids are, primary metabolites., , (ii) Alkaloids, flavonoids, rubber, etc. are secondary, metabolites., , (iii) Linoleic, linolenic and palmitic acids are the three, essential fatty acids., , (a) Statements (i) and (ii) are correct, , (b) Statements (i) and (iii) are incorrect, , (c) Statements (i) and (iii) are correct, , (d) Only statement (ii) is incorrect, , Essential amino acids include, {a) leucine (b) valine, {c) tryptophan (d) all of these., , The component present in both nucleotides and nucleosides, is, , (a) sugar (b) phosphate, , {c)_ nitrogenous base (d)_ both (a) ands)., , Saturated fatty acids possess__ bonds between carbon, atoms and are__at room temperature,, , (a) single, solids (b) double, solids, , (c) single, liquids (d) double, liquids, , Cytidine is a, , (a) nitrogenous base — (b) nucleoside, (c) nucleotide (d) nucleic acid., Lecithin is a, , (a) sterol (b) glycolipid, , ()_ phospholipid {d) sphingolipid., , Which of the following statements about amino acids is, , incorrect?, , (a) Essential amino acids are not synthesized in the body,, therefore have to be provided in the diet., , (b) Leucine, isoleucine, lysine, valine are essential amino, acids., , (co) Cysteine and methionine are sulphur containing amino, acids., , (d) Lysine and arginine are acidic amino acids., , ll, f CHs- O—C—R,, R-C— oo t, CH>-O— r- O—CHs— Git, ou ss, CH,| CHs, ‘CH;, , 19., , 20., , 21,, , Given structural formula is correctly identified alongwith, , its related function by which of the following options?, , (a) Cholesterol — A component of animal cell, membrane, , (b) Lecithin — — A component of cell membrane, , (Q) Triglyceride — An energy source, , (d) Adenosine — A component of nucleic acids, , Given structural formula is correctly identified alongwith, its related function by which of the following options?, , HO, (a) Cholesterol - A component of animal cell membrane, {b) Lecithin © —A component of cell membrane, , (Triglyceride - An energy source, (d) Adenosine -A component of nucleic acids, , Which one of the following is a basic amino acid, COOH COOH, | |, , (a) NH,-C-H (b) NH,-C-H, | |, CHICHs)» (CH,),NH,, COOH COOH, | |, , (c) NH,-C-H (d) NH,-C-H, | |, CH,OH CH,, , It is said that elemental composition of living organisms and, that of inanimate objects (like earth's crust) are similar in the, sense that all the major elements are present in both. Then, what would be the difference between these two groups, choose a correct answer from among the following, , (a) Living organisms have more gold in them than, , (b) Living organisms have more water in their body than, inanimate objects, , (c} Living organisms have more carbon, oxygen, and, hydrogen per unit mass than inanimate objects, , (d) Living organisms have more calcium in them than, inanimate objects

Page 5 : Assignment-3, , Inulin found in a plant cell is a, , (a) Lipid (b) Protein, (c)_ Polysaccharide (d) Vitamin, Which of the following is a disaccharide, , {a) Ribose {b) Maltose, {c) Glucose (d) Cellulose, , ‘Sucrose, a common table sugar, is composed of, , {a) Glucose + fructose {b) Glucose + galactose, (c) Fructose + galactose (d) None of these, , Which is non-reducing sugar, , (a) Glucose (b) Galactose, , (c) Mannose (d) Sucrose, Glycoproteins contain, , (a) Protein and fat, , (b) Protein and salt, , {c}_ Protein and vitamin, (d) Protein and carbohydrates, , No cell could live without, (a) Phytochrome (b) Enzymes, (c} Chloroplasts (d) Protein, , Which one of the following biomolecules is correctly, , characterized, , (a) Lecithin - a phosphorylated glyceride found in the cell, membrane, , (b) Palmitic acid - an unsaturated fatty acid with 18 carbon, atoms, , (c) Adenylic acid - adenosine with a glucose phosphate, molecule, , (d) Alanine amino acid - Contains an amino group and an, , acidic group anywhere in the molecule, , Find out the mismatched pair, , (a) Agar Polymer of glucose and, sulfur-containing, carbohydrates, , {b) Chitin - Polymer of glucosamine, , (c). Peptidoglycan Polysaccharide linked to, peptides, , (d) Lipopolysaccharides A complex of lipid and, polysaccharide, , le) Glycogen - Polymer of glucose, , Which of the following is not a disaccharide, , (a) Maltose (b) Starch, , (c} Sucrose {d) Lactose, , 10., , 11., , 12., , 13., , 14,, , 15., , 16., , Which of the following fats is least harmful to heart, , (a) Saturated fat (b) Cholesterol, (c) Polyunsaturated fat (d) Oils, , Chitin is a, , (a) Polysaccharide, , (b) Nitrogenous polysaccharide, , (c) Lipoprotein, , (d) Protein, , Which of the following is not a conjugated protein, (a) Peptone (b) Phosphoprotein, {c} Lipoprotein (d) Chromoprotein, , Which one of the following statements is wrong, , (a) Sucrose is a disaccharide, , (b) Cellulose is a polysaccharide, , (c) Uracil is a pyrimidine, , (d) Glycine is a sulfur-containing amino acid, , ‘Sugars are technically called carbohydrates, referring to the, fact that their formulae are only multiple of C(H,0)., Hexoses, therefore, have six carbons, twelve hydrogens, and, six oxygen atoms, Glucose is a hexose. Choose from among, the following another hexose, (a) Fructose, , (c) Ribulose, , (b) Erythrose, (d) Ribose, , Aminoacids, as the name suggests, have both an amino, group and a carboxyl group in their structure. In addition, all, naturally occurring amino acids (those which are found in, proteins) are called L-aminoacids. From this, can you guess, from which compound can the simplest amino acid be made, , (a) Formic acid (b) Methane, (c)_ Phenol (d) Glycine, Match the following and choose the correct combination, from the options given, , Column I Column II, (Organic Compound) (Example), A. Fatty acid 1. Glutamic acid, B. Phospholipid 2. Tryptophan, C. Aromatic aminoacid 3, Lecithin, D. Acidic amino acid 4, Palmitic acid, (a) A-1, B-2, C-3, D-4 (b) A-4, B-3, C-2, D-1, (c) A-2, B-3, C-4, D-1 (d) A-3, B-4, C-1,D-2, (e) A-4, B-3, C-1, D-2, , 97