Biology Fsc Part 1 Chapter 3 Online Test With Answers

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Biology Fsc Part 1 Chapter 3 Online Test

Sr. # Questions Answers Choice
1 The detachable cofactors of an enzyme is known as. Prosthetic group Apo enzyme <div>Activator</div> Co enzyme
2 the vitamins are essential raw material for the synthesis of. Activators Co factors Co enzymes Prosthetic group
3 If non protein part is loosely attached to proteins it is known as. Cofactor Co enzyme Active site Holo ezyme
4 Enzyme that are integral part of ribosomes are involved in the synthsis of Lipids Carbohydrates Proteins None of these
5 Competitive inhibitors Destroy the structure of enzyme Resemble structurally with substrate Do occupy active site Both b and c are correct
6 An enzyme is said to be denatured when It has no co-factor It is in a condition of low temperature Its structure is destroyed None of these
7 The specificity of an enzyme is due to its Cofactor Protein nature Active site Globular shape
8 Prosthetic group is Covalenty bonded non-protein part of an enzyme Loosely bonded non-proteins part of an enzyme Co-factor consists of metal ions None of these
9 Co-enzyme is a Covalently bonded non-protein part of an enzyme Loosely bonded non-protein part of an enzyme Co-factor consists of metal ions None of these
10 The raw material for co-enzymes are Lipids ` Proteins Vitamins None of these
11 The reversible inhibitors usually constitute Strong linkage with enzyme Weak linkage with enzyme No Linage with enzyme medium linkage
12 Koshland in 1959 proposed the modified form of Fluid mosaic model Induce fit model Unit membrane model Reflective index model
13 The rate of reaction of enzyme directly depends upon Amount of enzyme present at a specific time at unlimited substrate concentration Nature of substrate Maximum pH level Low temperature
14 An activated enzyme made of polypeptide chain and a co-factor is Substrate Co-enzyme Apoenzyme Holoenzyme
15 The catalytic activity of an enzyme is restricted to its small protein called Active site Passive site Intermediate Above all
16 Which one of the following statements about enzymes is not true They consist of proteins or without a non-proteins part They change the rate of catalyzed reaction They are sensitive to heat They are non-specific in their action
17 The active site of an enzyme Never changes Forms no chemical bond with substrate Determines by its structure the specificity of an enzyme Looks like a lump projection from the surface of an enzyme
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