MDCAT Chemistry Chapter 18 Carboxylic Acids Online Test With Answers

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MDCAT Chemistry Chapter 18 Carboxylic Acids Online Test

Sr. # Questions Answers Choice
1 Based on the physico-chemical properties, proteins may be classified into the following types Simple proteins Compound proteins Derived proteins All of the above
2 Which of the following bond is responsible for joining the amino acids in proteins? Metallic Bond Di sulfide bond Peptide Bond Peptide Bond
3 The enzyme which is found in saliva, accelerates the conversion of starch into sugar is Pepsin Thrombin Ptyalin Fumarase
4 The proteins which give an amino acid and non-protein group on hydrolysis are known as Derived protein Albumins Conjugated simple protein Conjugated protein
5 Glucose is converted into ethanol by the enzyme present in the yeast Urease Zymase Invertase Sucrase
6 The type of isomerism shown by alkyl halides is geometric functional positional metamerism
7 For a particular halogen, the reactivity of alkyl halides remains same with C-increase decreases with C-increase increases with C-increase decreases with C-decrease
8 An example of regulatory protein is nucleoprotein hemoglobin lactoglobulin thyroxine
9 UV rays inactivate enzymes because they change sequence of amino acids of enzymes They add prosthetic group to them They increase their specificity affect structure of enzymes
10 Simplest Structure of a protein that has only covalent bonding between amino acids is 2° structure 3°structure 1° structure 4° structure
11 Dehydrogenase is an example of ligase oxidoreductase lyase hydrolase
12 Proteins have linkage between amino acids imide amide ester ether
13 Amino acids react together to form the primary structure of proteins which is accompanied by addition of water addition of ammonia removal of ammonia removal of water
14 An element that is not an essential par of proteins is O N H S
15 The most complex strueture a single polypetide can assume is 1° structure 2°structure 3° structure 4° structure
16 Proteins loose their ability to work by slight heating by change in structure by slight cooling when inside the body
17 Enzymes consist of proteins only proteins and non-protein parts fats only futs and non-fatty components
18 Which of the following is not a property of enzymes? extraordinary speciffcity reversibility of reactions high efficiency minimum activity at optimum T
19 Alpha helix and beta pleated sheath are secondary structures of protein which are maintained by dipole forces non-polar interactions ionic bonds Hydrogen bonds
20
The enzymes that catalyse the addition or removal of ammonia are:
 Lyases Ligases Transferases Kinses
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