Biology Fsc Part 1 Chapter 5 Online Test With Answers

Biology Fsc Part 1 Chapter 5 Online Test

Sr. # Questions Answers Choice
1 Which inhibitors are used as antibiotics to kill bacteria. Competitive Irreersible Non competitive non reversible
2 Pick up the irreversible inhibitor Cyanide Aspirin Succinate dehydrogenase Malonate
3 Which of the follow is a potent inhibitor of prostaglandin Aspirin Tetracycline Dispirin Paracetamol
4 Achemicla that interferes and blck an ez=nzyme's activity is called. Inhibitor Activator Accelerator Supressor
5 If enzyme concentratio goes on increasing, and rate of reaction stays constrant ad does not increase further means that. Substrate concentration wasincreased Substrate concentration was the same Less amount of enzymes is active Enzymes have no effect
6 At unlimited substrate concentration at a specific time, rate of reaction directly depends on. Enzyme concentration  substrate concentration  Temperature pH
7 7.0 is the optimum pH of Catalase and urease Urease and source Pepsin and arginase Pancreatic lipase
8 Pepsins's optimum pHis. 1.5- 1.6 4.6 -5.2 8.0 7.8 - 8.7
9 Pepain works in  Acidic pH Alkaline media Low pH All of above
10 the enzymes papain is present in  Yellow papaya Green papaya Red papaya blue papaya
11 Pepsin works its best in. Acidic medium Low pH High pH Both a and b
12 The pH at whcih an enzyme works at maximum rate is called. Maximum pH Optimum pH Average pH Top pH
13 A slight increase or decreasein pH of an enzyme causes. Incresse in enzyme activity Decrese in enzyme activity No effect on enzyme activity  All of above
14 The loss of gloular shape of enzyme is called. Saturation  Renaturation  Denaturation  Flexion
15 The enzyme of thermophilic bacterial can function at. 70 oC 170 oC 210 oC 340 oC
16 When the temperature of body falls below 37.0 oC the bonds that determine enzymes shape becomes. Less flexible More hard Less hard More flexible
17 The optimum temperature for human enzymes is. 37.0 oC 37.8 oC 36.1 oC 36.5 oC
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