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

The speed of a chemicla reaction depends on the amount of.

Question # 2

The pH at whcih an enzyme works at maximum rate is called.

Question # 3

What reoles does nicotinamide adenine dinucleotide playin oxidateive pathways.

Question # 4

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

Question # 5

the non protein components of enzyme are called.

Question # 6

The enzyme of thermophilic bacterial can function at.

Question # 7

If enzyme concentratio goes on increasing, and rate of reaction stays constrant ad does not increase further means that.

Question # 8

Pick up the irreversible inhibitor

Question # 9

Enxyme B requires Zn+2 to catalyse the conversion of substrate X. The zinc is best identified as a .

Question # 10

Penicilllin permanetly disables the enzymes responsible for building bacterial cell walls becasue it acts as.

Question # 11

The cofactos which are attached with enxyme by convalent bonds are called.

Question # 12

The phenomenon where the products of a process controls the process itself, oftenly limiting the production of more products is called.

Question # 13

the energy which works to destabilize existing chemical bonds is called.

Question # 14

Mark the disaccharide

Question # 15

Pick the enzyme which is not related to others.

Question # 16

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

Question # 17

Co enzyms participate in enzyme catalyzed reactions, ofter by transporting .

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5th Chapter

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 If an enzyme solutionis saturated with substrate, the most effective way to obtain an even faster yield of products would be.
A. Add more of the enxymes
B. Add more substrate
C. Add an allosteric inhibitor
D. Add a non competitive inhibitor
2 The enzyme whcih uses ATP to join molecules.
A. Isomerases
B. Ligases
C. Hydrolases
D. Oxidoreductases
3 Which of the followign is structurally similar with succinic acid
A. Malonic acid
B. Acetic acid
C. Mavlonic acid
D. Malic acid
4 The temperature at which an enzyme works at its maximum rate is called.
A. Specific temperature
B. Maximum temperature
C. Optimum temperature
D. Initial temperature
5 Which of thefollowing can be affected by temperatur ein an enzyme
A. Hydrogen bond
B. Hydrophobic interaction 
C. Hydrophilic interaction 
D. Both a and b
6 At which regio of active site substrate is transforemd into preodcuts.
A. Binding site
B. Catalytic site
C. Peptidyle site
D. Aminoscyl site
7 Which of the following is NOTa hyrolase
A. Cytochrome oxidase
B. amylase
C. Lipase
D. Peptidase
8 Achemicla that interferes and blck an ez=nzyme's activity is called.
A. Inhibitor
B. Activator
C. Accelerator
D. Supressor
9 The enzymes which remvoe or ad H+ ions or electrons from substrateare called.
A. Isomerases
B. Oxidoreductases
C. Lyases
D. Transfeases
10 Lock and key model of enzyme mechanism was proposed by 
A. Emil Fisher
B. Norman Haworth
C. Daniel Koshland
D. F-Sanger

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