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3 marksCellular Transport Mechanisms

CSEC Human and Social Biology · January 2016 · Paper 2 · Question 2(c)(iv)

Cameron consumes a meal consisting of a slice of pizza and guava juice.

State the process by which nutrients are absorbed across the intestinal wall and provide an explanation of this process.

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Other parts of this question

  1. 2(a)Complete Table 1 by classifying each named vitamin (B1, C, D) as water soluble or fat soluble.[3 marks]
  2. 2(b)(i)Name TWO chemical elements found in protein molecules other than hydrogen and oxygen.[2 marks]
  3. 2(b)(ii)State ONE function of protein in the human body.[1 mark]
  4. 2(c)(i)Identify the sugar most likely to be present in Cameron's bloodstream after digesting this meal.[1 mark]
  5. 2(c)(ii)Explain why a slice of avocado is considered a better source of fatty acids than Cameron's slice of pizza.[2 marks]
  6. 2(c)(iii)Identify TWO structures present on the walls of the small intestine and suggest how they facilitate maximum nutrient absorption.[3 marks]

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