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1 markBiological and Physiological Principles in Agriculture

CAPE Agricultural Science Unit 1 · 2015 · Paper 2 · Question 1(b)(i)

An artificial hormone that is naturally produced in cattle is injected into dairy cows to increase milk yield.

Name the naturally produced hormone in cows that regulates milk production.

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Other parts of this question

  1. 1(a)Define the term 'hormone'.[2 marks]
  2. 1(b)(ii)Identify the endocrine gland in cows responsible for producing this hormone.[1 mark]
  3. 1(b)(iii)State the name of the synthetic or artificial hormone used to boost milk yield.[1 mark]
  4. 1(b)(iv)Explain how this artificial hormone functions to stimulate increased milk production.[2 marks]
  5. 1(c)(i)State two major dietary differences between ruminants and non-ruminants.[2 marks]
  6. 1(c)(ii)Explain the digestive process of consumed food in ruminant animals.[3 marks]
  7. 1(c)(iii)Identify the major source of dietary energy for ruminant livestock.[1 mark]
  8. 1(d)Name an example of a non-ruminant animal that consumes a diet similar to ruminants, and explain how it is physiologically capable of digesting this food.[2 marks]

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