Home
Class 12
BIOLOGY
Assertion : Microorganisms such as lacto...

Assertion : Microorganisms such as lactobacillus and others commonly called lactic acid bacteria (LAB) grow in milk and convert it to curd.
Reason : During growth, these bacteria produce acids that coagulate and partially digest the milk proteins
(A) If both assertion and reason are true and reason is the correct explanation of assertion.
(B) If both assertion and reason are true but reason is not the correct explanation of assertion.
(C) If assertion is true but reason is false.
(D) If both assertion and reason are false.

A

If both assertion and reason are true and reason is the correct explanation of assertion.

B

If both assertion and reason are true but reason is not the correct explanation of assertion.

C

If assertion is true but reason is false.

D

If both assertion and reason are false.

Text Solution

Verified by Experts

The correct Answer is:
A

If both assertion and reason are true and reason is the correct explanation of assertion.
Promotional Banner

Topper's Solved these Questions

  • MICROBES IN HUMAN WELFARE

    KUMAR PRAKASHAN|Exercise SECTION - F MULTIPLE CHOICE QUESTIONS(MCQS ASKED IN COMPETITIVE EXAM)|56 Videos
  • MICROBES IN HUMAN WELFARE

    KUMAR PRAKASHAN|Exercise SECTION - E SOLUTION OF NCERT EXEMPLAR (LONG ANSWER TYPE QUESTIONS)|8 Videos
  • HUMAN REPRODUCTION

    KUMAR PRAKASHAN|Exercise SECTION-F MULTIPLE CHOICE QUESTIONS|118 Videos
  • MODEL QUESTION PAPER FOR ANNUAL EXAM

    KUMAR PRAKASHAN|Exercise Part- B ( Section C)|4 Videos

Similar Questions

Explore conceptually related problems

Assertion : Large number of methanogens bacteria are found in dung of cattle. Reason : The excreta (dung) is used to prepare biogas. (A) Assertion and Reason are true and Reason is the correct explanation of Assertion. (B) Assertion and Reason are true but Reason is not the correct explanation of Assertion (C) Both Assertion and Reason are false. (D) Assertion is true but reason is false

Assertion A: Pollen grains can survive against high temperature, conc acid and base. Reason R: Outer -layer of pollen grain is made up of sporopollenin (A) A and R both are true and R is correct explanation of A (B) A and R both are true, but R is not the explanation of A (C) A is true, R is wrong (D) A is wrong and R is true

Assertion: If I is the incentre of /_\ABC, then |vec(BC)|vec(IA)+|vec(CA)|vec(IB)+|vec(AB)|vec(IC)=0 Reason: If O is the origin, then the position vector of centroid of /_\ABC is (vecOA)+vec(OB)+vec(OC))/3 (A) Both A and R are true and R is the correct explanation of A (B) Both A and R are true R is not te correct explanation of A (C) A is true but R is false. (D) A is false but R is true.

S - In production of riboflavin, fermentation is done by fungus. R- Bacteria are useful in acetic acid production. (A) Statement S&R both are true But R is explanation of S. (B) Statement S&R both are true And R is not explanation of S. (C) S. is true, .R. is false. (D) S. is false, .R. is true.

Assertion A: Couples should keep away from copulating during 10 to 17 days of menstruation. Reason R: There is highest chance of fertilization during 1 to 17 days of menstruation (A) A and R both are correct, R is correct explanation for A (B) A and R both are correct, R is not correct explanation of A (C) A is correct and R is incorrect (D) A is incorrect and R is correct

Assertion :- Lactic acid bacteria are useful for human. Reason :- Lactobacillus can perform retting.

Which bacteria are used to make curd from milk?

KUMAR PRAKASHAN-MICROBES IN HUMAN WELFARE -SECTION - F MULTIPLE CHOICE QUESTIONS(MCQS FROM DARPAN BASED ON TEXTBOOK)
  1. What is the use of Brewers Yeast? (A) Production of ethanol from the ...

    Text Solution

    |

  2. Where do bacteria grow in biogas plant? (A) in excreta (B) decaying...

    Text Solution

    |

  3. Assertion : Microorganisms such as lactobacillus and others commonly c...

    Text Solution

    |

  4. Which metabolic process occurs by methanogenic bacteria, in the biogas...

    Text Solution

    |

  5. S - In production of riboflavin, fermentation is done by fungus. ...

    Text Solution

    |

  6. Curd is prepared by adding small amount of ............ in required mi...

    Text Solution

    |

  7. Which of the following, decreases the crop production ? (A) Insects ...

    Text Solution

    |

  8. The greater the BOD of waste water........ (A) less the pollutants ...

    Text Solution

    |

  9. S - Production of lactic acid occurs through lacto bacteria. R - ...

    Text Solution

    |

  10. Lactobacillus produces........ (A) Butyric acid (B) Lactic Acid (...

    Text Solution

    |

  11. Following is used in the production of leavened(swollen) bread (A) As...

    Text Solution

    |

  12. Where cyclosporine A is used ? (A) To remove oily stains in laundry. ...

    Text Solution

    |

  13. Which products are synthesized at commercial level through microbes ? ...

    Text Solution

    |

  14. …...... add organic matter to the soil and increase fertility

    Text Solution

    |

  15. ........... are the result of lactic acid fermentation of fruits. (A)...

    Text Solution

    |

  16. In Herbivores, methanogens help in

    Text Solution

    |

  17. LAB is used in preparation of ......

    Text Solution

    |

  18. For which diseases antibiotics are discovered ? (A) Whooping cough ...

    Text Solution

    |

  19. Which one of the following acids, was produced by fermentation ?

    Text Solution

    |

  20. Which microorganism is useful in the production of Cyclosporin A ?

    Text Solution

    |