Home
Class 12
BIOLOGY
Read the following statements and select...

Read the following statements and select the correct option.
Statement 1 : Malarial parasite requires two hosts - humans and mosquitoes to complete its life cycle.
Statement 2 : Hemozoin is a toxic substance produced by the rupturing of liver cells during malarial infection.

A

Both statement 1 and 2 are correct.

B

Statement 1 is correct but statement 2 is incorrect.

C

Statement 1 is incorrect but statement 2 is correct.

D

Both statement 1 and 2 are incorrect.

Text Solution

AI Generated Solution

The correct Answer is:
To solve the question, we will evaluate both statements regarding the malarial parasite and the substance hemozoin. ### Step-by-Step Solution: 1. **Evaluate Statement 1**: - The statement claims that the malarial parasite requires two hosts: humans and mosquitoes to complete its life cycle. - The malarial parasite is known as Plasmodium, which is a protozoan. - Plasmodium does indeed require two hosts: the human host, where it undergoes asexual reproduction, and the female Anopheles mosquito, where it undergoes sexual reproduction. - **Conclusion**: Statement 1 is **true**. 2. **Evaluate Statement 2**: - The statement claims that hemozoin is a toxic substance produced by the rupturing of liver cells during malarial infection. - Hemozoin is a byproduct of the digestion of hemoglobin by the Plasmodium parasite, which occurs in red blood cells (RBCs), not liver cells. - The rupture of RBCs releases hemozoin, which can be toxic, but it is not related to liver cell rupture. - **Conclusion**: Statement 2 is **false**. 3. **Final Conclusion**: - Since Statement 1 is true and Statement 2 is false, the correct option is that Statement 1 is correct but Statement 2 is incorrect. ### Answer: The correct option is **B**: Statement 1 is correct, but Statement 2 is incorrect. ---

To solve the question, we will evaluate both statements regarding the malarial parasite and the substance hemozoin. ### Step-by-Step Solution: 1. **Evaluate Statement 1**: - The statement claims that the malarial parasite requires two hosts: humans and mosquitoes to complete its life cycle. - The malarial parasite is known as Plasmodium, which is a protozoan. - Plasmodium does indeed require two hosts: the human host, where it undergoes asexual reproduction, and the female Anopheles mosquito, where it undergoes sexual reproduction. ...
Promotional Banner

Topper's Solved these Questions

  • EVOLUTION

    NCERT FINGERTIPS|Exercise Evolution|160 Videos
  • HUMAN REPRODUCTION

    NCERT FINGERTIPS|Exercise Human Reproduction|185 Videos

Similar Questions

Explore conceptually related problems

Read the following statements and selec the correct option Statement 1: Virsuses are inert crystalline structure outside a living cell. Statement 2 : Virsus are cellular organisms.

Read the following statements select the correct option. Statement 1 : Ranikhet disease is a disease of poultry. Statement 2: It is caused by a virus.

Read the following statements and select the correct option. Statement 1 : In pea plant, transfer of pollen grains to the stigma is easy. Statement 2 : In cross pollinating plants, pollination does not take place.

Read the following statements and select the correct option. Statement 1 : Unisexual flowers are either staminate flowers or pistillate flowers. Statement 2: Both monoeious and dioeious plants have unisexual flowers.

Read the given statements and select the correct option. Statement 1: All triploblastic animals are eucoelomates. Statement 2: They have a false correct.

Read the following statements and select the correct option Statement 1 : Lymphatic capillaries are free and blind at one end Statement 2 : Lymph does not flow in a circular manner.

Read the following statements and select the correct option. Statement 1 : The human small intestime is the longest portion in the alimentary canal. Statement 2: Absorption of digested food requires a very large surface area.

Read the given statements and select the correct option. Statement 1 : Cephalochordate bears notochord throughout their life. Statement 2: In cephalochordates, notochord extends from head to tail.

Read the following statement and select the correct option Statement 1 : Bone and cartilage are rigid connective tissues Statement 2 : Blood is a connective tissue with fluid (plasma) matrix.

Read the following statements and select the correct option. Statement 1 : The second largest digestive gland in our body is pancreas. Statement 2 : Pancreas functions both as an exocrine and endocrinegland.

NCERT FINGERTIPS-HUMAN HEALTH AND DISEASE-Human Health And Disease
  1. Hepatitis B is transmitted through

    Text Solution

    |

  2. A toxic substance, responsible for the chills and high fever recurring...

    Text Solution

    |

  3. Read the following statements and select the correct option. Stateme...

    Text Solution

    |

  4. During the life cycle of Plasmodium, sexual reproduction takes place i...

    Text Solution

    |

  5. Where will you look for the sporozoites of malarial parasite ?

    Text Solution

    |

  6. Study carefully the following stages of life cycle of malarial parasit...

    Text Solution

    |

  7. Select the correct option showing the life cycle of Plasmodium.

    Text Solution

    |

  8. Amoebic dysentery (amoebiasis) is caused by

    Text Solution

    |

  9. Which one of the following diseases cannot be cured by taking antibiot...

    Text Solution

    |

  10. An intestinal parasite which causes blockage of the intestinal passag...

    Text Solution

    |

  11. Elephantiasis, a chronic inflammation that results in gross deformitie...

    Text Solution

    |

  12. Which of the following is affected by the infection of Wuchereria banc...

    Text Solution

    |

  13. Which of the following diseases is transmitted by the bite of the fema...

    Text Solution

    |

  14. Which of the following pairs correctly matches a disease and a pathoge...

    Text Solution

    |

  15. The pathogen Microsporum responsible for ringworm disease in humans be...

    Text Solution

    |

  16. Appearance of dry, scaly lesions with itching on various parts of the ...

    Text Solution

    |

  17. Read the following statements and select the correct option. Stateme...

    Text Solution

    |

  18. Match column I with column II and select the correct option from codes...

    Text Solution

    |

  19. Gambusia is a fish which is being introduced into the ponds in order t...

    Text Solution

    |

  20. Match column I with column II and select the correct option from codes...

    Text Solution

    |