ECAT Chemistry Chapter 25 Macromolecules Online Test With Answers

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ECAT Chemistry Chapter 25 Macromolecules Online Test

Sr. # Questions Answers Choice
1 Enzymes catalyse all biological reactions occurring in the cell. What is true about an enzyme Enzyme is a small molecule Enzyme is acidic in nature Enzyme is a protein Enzyme is a lipid
2 There are 20 amino acids found in protein which is not the property of these amino acids They are all<span style="color: rgb(34, 34, 34); font-family: &quot;Times New Roman&quot;; font-size: 24px; text-align: center; background-color: rgb(255, 255, 248);"><i>α</i></span>-amino acids They are all optically active They have high decomposition point They are water soluble
3 Which functional group is present in glycerol tristearate Carboxylic acid Alcohol Aldehyde Ester
4 At what pH glycine shows the structure H3N+-- CH2-- COOH 2 7 10 14
5 Glycine at pH7 has the structure H<sub>2</sub>N -- CH<sub>2 </sub>-- COOH H<sub>3</sub>N<sup>+</sup>-- CH<sub>2</sub>-- COOH H<sub>2</sub>N -- CH<sub>2</sub>COO<sup>-</sup> H<sub>3</sub>N<sup>+</sup>-- CH<sub>2</sub>-- COO<sup>-</sup>
6 Which teat is not given by both glucose and fructose Give yellow ppt of CHl<sub>3</sub>with alkaline aqueous iodine With 2, 4-DNPH give yellow ppt of hydrazone Evolve H<sub>2</sub>gas with Na metal Oxidised with [Ag(NH<sub>3</sub>)<sub>2</sub>]<sup>+</sup>i.e. Tollen's reagent
7 A nucleoside may be Ribonuleoside Deoxyribonucleoside Both a and b None
8 The proteins which are derived by conjugated proteins are called as Simple protein Complex protein Derived protein None
9 How is the secondary structure of protein stabilized Through hydrogen bonding Through ionic bonding Through van der wall forces Through covalent bonding
10 The protein which only yield amino acids and their derivatives Simple proteins Complex proteins Derived protein All of these
11 When a nitrogeneous base combine with a sugar it is called Ribose Nucleotides Nucleoside None
12 Which is the polymer that has amide linkage in its structure PVC Poly ethene Polyester Nylon
13 Oxidation reduction is done by Oxidoreductase Lipases Lyase None of these
14 Protein may have Primary structure Secondary structure Tertiary structure All of these
15 Sterols, vitamin D and terpenese belong to Simple lipids Complex lipids Derived lipids None
16 The clotting time of blood is increased due to the deficiency of Vitamin A Vitamin K Vitamin D Vitamin C
17 Ricket is caused due to the deficiency of vitamin A D B E
18 What is the most common catalyst used in hydrogenation of oils Cobalt Nickel Tungsten Copper
19 β-D-glucose is a monomer for Strach Cellulose Glycogen Protein
20 Monosaccharides belong to the group Lipids Fats Proteins Carbohydrates
21 Which one of the following is a water soluble vitamin D K A Ascorbic acid (Vic C)
22 Vegetable oils are Unsaturated fatty acids Glycerides of unsaturated fatty acids Glyccerides of saturated fatty acids Essential oils obtained from plants
23 The fibre which is made form acrylonitrile as monomer PVC Rayon fibre Acrylic fibre Polyester fibre
24 Plastics are a pollution problem because many plastics Are made from petroleum Are very inflammable Burn to produce toxic fumes Decompose to produce toxic products
25 Purines include Adenine Guanine Both a and b None
26 Which of these polymers is an addition polymer Nylon 6,6 Polystyrene Terylene Epoxy resin
27 Enzymes are chemically Carbohydrates Proteins Fatty acids Phospholipids
28 Which is not an enzyme Transverses Lipase Lyase None of these
29 (CH2O)nis general formula for Monosaccharides Oiligosaccharides Polysaccharides None of these
30 Which of the following is the repeating monomeric unit in cellulose Sucrose Maltose Cellobiose Glucose
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