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Physiology > EXAM > PYC2605 P PAPERS (All)

PYC2605 P PAPERS

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1. The world first became aware of a new disease – which was later known as Aids - in (a) ___ when (b) ___. 1. (a) 1982; (b) heterosexual people in central Africa showed symptoms like severe diarrh ... oea and weight loss – a disease that was referred to as ‘slim disease’at the time 2. (a) 1980; (b) scientists were baffled by a new disease that was sexually transmitted 3. (a) 1981; (b) a very rare form of pneumonia and an uncommon type of cancer were diagnosed in homosexual men in Los Angeles 4. (a) 1983; (b) a rare form of pneumonia (PCP) was diagnosed in people with haemophilia 2. Which HI virus type is predominant in Southern Africa? 1. HIV 1 Subtype B 2. HIV 1 Subtype C 3. HIV 2 Subtype B and C in combination 4. HIV 2 Subtype C 3. The defences of the immune system can be divided into two main groups namely the non-specific defences and the specific defences. An example of the specific defences is ___. 1. CD4+T cells 2. the skin and mucous membranes 3. plasma proteins 4. macrophages 4. Which of the following features describe the HI virus? a. It is a retrovirus b. It is a very small organism c. It is roughly circular in shape d. It can only be seen with a microscope The correct answer is: 1. (a) 2. (b) and (c) 3. (a) (b) and (c) 4. (a) (b) (c) and (d) [Show More]

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