First Year Biology Chapter 5 Online MCQ Test for 1st Year Biology Chapter 5 Variety of Life Preparation

FSC Part 1 Biology Ch. 5 Test

11th Class Biology Chapter 5 Online MCQs Tests:

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MCQ's Test For Chapter 5 "Biology Fsc Part 1 Chapter 5 Online Test"

Try The MCQ's Test For Chapter 5 "Biology Fsc Part 1 Chapter 5 Online Test"

  • Total Questions17

  • Time Allowed20

Biology Fsc Part 1 Chapter 5 Online Test

00:00
Question # 1

Pepsins's optimum pHis.

Question # 2

The enzyme of thermophilic bacterial can function at.

Question # 3

Activation energy is lowered by 

Question # 4

Which enxyme class is responsible for catalysing the addition of water to a substrate molecule.

Question # 5

Achemicla that interferes and blck an ez=nzyme's activity is called.

Question # 6

Which of the following is correct about enzymes.

Question # 7

In complez metaboic pathways, end products formed inhibit the.

Question # 8

Pepsin works its best in.

Question # 9

the enzymes papain is present in 

Question # 10

The enzymes catalyse non -lhydrolytic addition or removal of groups from substrates are.

Question # 11

The loss of gloular shape of enzyme is called.

Question # 12

Which of the following statemetns about enzymes is correct. 

Question # 13

The kinds or types of co factor are.

Question # 14

The complete enzyme ncluding its coensyme or prosthtiec grop is termed as

Question # 15

At unlimited substrate concentration at a specific time, rate of reaction directly depends on.

Question # 16

Which of the followign is structurally similar with succinic acid

Question # 17

the mechanism of enzyme inhibition, usedto understand the factors that influence enzyme activity is called.

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11th Class Biology Chapter 5 Test

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FSc Part 1 Biology (New Book) Chapter 5 Important MCQ's

Sr.# Question Answer
1 the energy which works to destabilize existing chemical bonds is called.
A. Dectivation energy
B. Activation energy
C. Ionization energy
D. Potential energy
2 The phenomenon where the products of a process controls the process itself, oftenly limiting the production of more products is called.
A. Feedback activation 
B. Feed forward activation
C. Feed back inhibition
D. Feed forward inhibition
3 Which of the following is correct about enzymes.
A. Enzymes increase the activation energy
B. The presene of enxymes does not affet the natur eor properties of end products
C. Enxymes are synthesized y endocrine cells
D. Enxymes are fibrous proteins
4 The pH at whcih an enzyme works at maximum rate is called.
A. Maximum pH
B. Optimum pH
C. Average pH
D. Top pH
5 Co enzyms participate in enzyme catalyzed reactions, ofter by transporting .
A. Electrons
B. Hydrogen atoms
C. Phosphate groups
D. Both a and b
6 The optimum temperature for human enzymes is.
A. 37.0 oC
B. 37.8 oC
C. 36.1 oC
D. 36.5 oC
7 Substrate molecule fits into binding site by wek chemical forces such as.
A. Covalent bond
B. Metalic Bond
C. Ionic Bond
D. Hydrogen bond
8 How does a non competitive inhibitor decrease the rae ofn enzyme catalysed reaction.
A. By chaing the free energy change of the reaction 
B. By acting as a coenzyme for the reaction 
C. By changing the shape of the enxyme
D. By binding the active site of the enxyme
9 the non protein components of enzyme are called.
A. Co factor
B. Transductor
C. Messenger
D. Both a and b
10 The kinds or types of co factor are.
A. One
B. Two
C. Three
D. Four

Test Questions