Biology Fsc Part 1 Online Test With Answers

Biology Fsc Part 1 Online Test

Sr. # Questions Answers Choice
1 In complez metaboic pathways, end products formed inhibit the. First enzyme First substrate First product Last enzyme
2 Activation energy is lowered by  Bringing reactants together in correct orientation Stressing particular chemical bonds of reactants Stabilizing bonds of substrate Both a and b
3 Catalytic site is adtivatid when  enzyme inhibitor complex is formed ES complex is formed Subsgtrate attaches at allosteric site Spontaneously
4 Which of the following is correct about enzymes. Enzymes increase the activation energy The presene of enxymes does not affet the natur eor properties of end products Enxymes are synthesized y endocrine cells Enxymes are fibrous proteins
5 the energy which works to destabilize existing chemical bonds is called. Dectivation energy Activation energy Ionization energy Potential energy
6 The speed of a chemicla reaction depends on the amount of. ATP H-ions Substrte Activation energy
7 When food is oxidized in cell, enxymes draw electrons from food molecules and transfer them to. Nicotinamide Adenine Dinucleotide Nicotinamide Ganine dinucleotide Nicotinamide cytosine dinucletide Nicotinamide Thymine Dinucleotide
8 The most important coenzyme in a cell is the hydrogen acceptor. NAD ATP FADH2 Co -enzyme Q
9 Co enzyms participate in enzyme catalyzed reactions, ofter by transporting . Electrons Hydrogen atoms Phosphate groups Both a and b
10 When the co factor is a non protein organic molccule and is loosely attached with enxyme it is called. Allosteric enzyme Co enzyme Prostheitc group Zymogen
11 Prosthetic groups are attached with enzyme by  Hydrogen bond Ionic bond Covalent bond Hydrophobic interaction 
12 The cofactos which are attached with enxyme by convalent bonds are called. allosteric enxym Apoenzyme Prosthtic group Proenzyme
13 The complete enzyme ncluding its coensyme or prosthtiec grop is termed as Apoenzyme Ribozyme Holoenzyme Proenzyme
14 The protine part of enzyme is called. Apoenzyme Co enxyme Prothetic group Hologenzyme
15 The kinds or types of co factor are. One Two Three Four
16 the non protein components of enzyme are called. Co factor Transductor Messenger Both a and b
17 At which regio of active site substrate is transforemd into preodcuts. Binding site Catalytic site Peptidyle site Aminoscyl site
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