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6th Chapter

9th class Biology Chapter 6 (English Medium)

Here you can prepare 9th Biology English Medium Chapter 6 Enzymes Test. Click the button for 100% free full practice test.

Matric Part 1/9th Class Biology Chapter 6 MCQ Test With Answer for Chapter 6 Enzymes

Matric Part 1/9th Class Biology Chapter 6 MCQ Test With Answer for Chapter 6 Enzymes

Sr. # Questions Answers Choice
1 The optimum temperature for human enzyme is between:
  • A. 10-20°C
  • B. 20-35°C
  • C. 35-40°C
  • D. 5-10°C
2 The first step in the cycle of an enzyme is;
  • A. Substrate binds to enzyme
  • B. Substrate converted
  • C. Products released
  • D. Enzyme become free
3 Minimum energy required to start a chemical reaction is called:
  • A. Potential energy
  • B. Chemical energy
  • C. Activation energy
  • D. All are same
4 Beriberi can be produced by the lack of ......... .
  • A. Vitamin A
  • B. Vitamin B
  • C. Vitamin BI
  • D. Vitamin C
5 The building units of enzymes are:
  • A. Fatty acids
  • B. Glycerol
  • C. Nucleic acid
  • D. Amino acid
6 Which enzyme breaks the peptide bods:
  • A. Amylase
  • B. Protease
  • C. Lipase
  • D. None
7 When we add more substrate to an already occurring enzymatic reaction and there is no increase in the rate of reaction what would you predict?
  • A. All active sites have been occupied by substrate molecules
  • B. The enzyme molecules have denatured
  • C. More substrate acted as inhibitor
  • D. More substrate has disturbed the pH of the medium
8 The average temperature for human is ...............°C.
  • A. 35°C
  • B. 36°C
  • C. 37°C
  • D. 38°C
9 When we add more substrate to an already occuring enzymatic reaction and there is no increase in the rate of reaction, what would you predict?
  • A. All actives sites have been occupied by substrate molecules
  • B. The enzyme molecule have denatured
  • C. More substrate acted as inhibitor
  • D. More substrate has disturbed has disturbed the pH of the medium
10 Which enzyme works in stomach?
  • A. Lipase
  • B. Trypsin
  • C. Pepsin
  • D. Amylase

Top Scorers of 9th Class Biology Chapter 6 Enzymes English Medium KPK Boards Online Mcqs

Y

Yaseen Khan

Lahore16 - Jul - 2023

12/12
46 Sec
F

Faizan Wazir

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46 Sec
M

Mohsin Return

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47 Sec
A

Abid Munir

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Izaz Uddin

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01 Mins 14 Sec
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Syed Shahemaal Abbas

Lahore17 - Sep - 2023

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A

Abid Munir

Lahore30 - Jul - 2023

12/12
05 Mins 10 Sec
M

Mohsin Return

Lahore31 - Aug - 2023

11/12
47 Sec
M

Mohsin Return

Lahore31 - Aug - 2023

11/12
47 Sec
A

Abid Munir

Lahore30 - Jul - 2023

11/12
58 Sec
A

Abid Munir

Lahore30 - Jul - 2023

11/12
59 Sec
A

Abid Munir

Lahore30 - Jul - 2023

11/12
01 Mins 02 Sec
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Itb SHUBI

Lahore28 - Jul - 2023

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Izaz Uddin

Lahore22 - Jul - 2023

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Izaz Uddin

Lahore22 - Jul - 2023

11/12
01 Mins 47 Sec

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