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PYC2605 EXAM PACK 2025 {DETAILED QUESTIONS AND ANSWERS } R51,98
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Exam (elaborations)

PYC2605 EXAM PACK 2025 {DETAILED QUESTIONS AND ANSWERS }

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PYC2605 EXAM PACK 2025 {DETAILED QUESTIONS AND ANSWERS }

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  • November 16, 2024
  • 67
  • 2024/2025
  • Exam (elaborations)
  • Questions & answers
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THIS DOCUMENT CONTAINS 100+ QUESTIONS WITH THEIR VERIFIED
ANSWERS DISPLAYED AFTER ALL QUESTIONS

QUESTION 1
Nomsa lives with her four children, her brother and her mother in a small house in a
rural area of KwaZulu-Natal. Nomsa’s brother has Acquired Immune Deficiency
Syndrome or Aids. This means that ___ .

(1) he has acquired the disease from green monkeys in central Africa
(2) he inherited the infection from his mother, just like his sister and her baby did
(3) he has acquired the disease from his sister due to their deficient living conditions
(4) an organism from outside the body attacked his immune system and rendered it
deficient

QUESTION 2
How would you explain to Nomsa’s brother what is meant by immune deficiency?

(1) The HI virus in your body is immune to any deficiencies caused by the syndrome.
(2) Your immune system can no longer protect your body against infections from
outside.
(3) The HI virus is deficient because it is a retrovirus.
(4) Your immune system is so deficient that it can only produce new viruses.

QUESTION 3
The reason why HIV - the virus that causes Aids - is so dangerous to human beings is
because HIV ‘hijacks’ the most important cells in the immune system, namely the (a)
____, and ‘forces’ them to (b) ____.

(1) (a) CD4+ T cells (b) manufacture more HI viruses
(2) (a) macrophages (b) kill all other invading organisms
(3) (a) CD4+ T cells (b) change the viral DNA to viral RNA
(4) (a) macrophages (b) stop initiating their chemical reactions which
kills viruses

QUESTION 4
Statistically, more women than men are infected with HIV in Africa. Why are women
more vulnerable to HIV infection than men?

(a) In general women’s living conditions are very poor and deprived, while men
usually have enough money to live comfortably.
(b) Women, as the recipients of semen, are exposed to the sexual fluids of their
partner(s) for a longer time than men.
(c) Men have stronger immune systems than women. Therefore women are also
more vulnerable to HIV infection than men.
(d) The area or surface that is exposed to the partner’s secretions during sexual
intercourse is larger in the case of women than in men.
The correct answer is:




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