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5 marksTransport Systems

CSEC Biology · May/June 2018 · Paper 2 · Question 5(b)

Marianne, a one-month-old baby, acquires immunity from her mother through breastfeeding. Marianne's father accidentally punctures his finger with a nail but does not need a tetanus antiserum injection because he received a tetanus vaccine the previous year.

Explain how the type of immunity that Marianne acquired from breastfeeding differs from the type of immunity that her father acquired from his vaccine. In your explanation, state the name of EACH type of immunity.

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Other parts of this question

  1. 5(a)Name THREE components of human blood that are important in protecting the body against pathogenic diseases and state the function of EACH.[6 marks]
  2. 5(c)Suggest TWO reasons why some parents may have a valid concern about immunizing their children and TWO reasons why the authorities maintain their position on…[4 marks]

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