Q19
3 marksShort AnswerSection A

Expand AIDS. List any four methods of prevention (control) of AIDS.

How do Organisms Reproduce?
Reproductive Health
Official Answer

AIDS stands for Acquired Immuno Deficiency Syndrome.


Four methods of prevention (control) of AIDS are:

  1. Safe Sexual Practices: Using mechanical barriers like condoms during sexual acts to prevent the exchange of infected body fluids.
  2. Safe Blood Transfusion: Ensuring that any blood or blood products used for transfusion are screened and certified HIV-negative.
  3. Use of Sterilized Needles: Avoiding the sharing of needles and ensuring that only disposable or properly sterilized syringes are used in medical settings.
  4. Avoiding Shared Razors: Not sharing personal items like razors or toothbrushes that might be contaminated with infected blood.
Acquired Immuno Deficiency SyndromeCondomsSterilized needlesBlood transfusionHIV

Marking Scheme

  • 1Full form of AIDS (1 mark)
  • 2Four prevention methods (0.5 marks each) (2 marks)

Hint

Think about how viruses in body fluids or blood can be blocked from entering another person's body.

Quick Oral Answer

AIDS stands for Acquired Immuno Deficiency Syndrome. It can be prevented by using condoms, using new needles, and checking blood before transfusion.

Analysis & Explanation

AIDS is caused by the Human Immunodeficiency Virus (HIV). Since it is a Sexually Transmitted Disease (STD) that can also spread through blood contact, prevention focuses on blocking these routes of transmission. Mechanical barriers like condoms are highly effective as they prevent the transmission of many STDs, including HIV, by preventing fluid contact.

Common Mistakes

  1. 1Writing 'Auto' instead of 'Acquired' in the full form.
  2. 2Listing methods that don't prevent AIDS, like 'avoiding touching the person'.

Interesting Facts

HIV is a retrovirus, meaning it can integrate its genetic material into the host's DNA, making it very difficult for the immune system to eliminate.

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Frequently Asked Questions

How many marks does this question carry in CBSE Class 10 Science 2011?

This question carries 3 marks in the CBSE Class 10 Science 2011 examination.

Which chapter does this question come from in Science?

This question is from the chapter "How do Organisms Reproduce?" in the CBSE Class 10 Science syllabus.

What topic does this question cover in Science?

This question covers the topic "Reproductive Health" from CBSE Class 10 Science.

What type of question is this in the CBSE Class 10 Science 2011 paper?

This is a Short Answer question from Section A in the CBSE Class 10 Science 2011 paper.