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The two statements below are linked by the word BECAUSE. Indicate your response according to the following key: Receptor antagonists fail to activate their receptors and do not elicit a direct biological response BECAUSE they have zero efficacy.

As a sperm travels from their site of production in the testes to the exterior, the sequence of the ducts through which they will pass is:

Which of the following classes of cytokines are important antiviral proteins?

The figure below shows a typical bacterial growth curve. Label the phases A, B, C and D and BRIEFLY explain what happens in each phase. (4 marks)

Which of the following statements about partial agonists is NOT true?

In cases of heparin overdose, protamine may be administered to interact with heparin and so reduce the risk of haemorrhage. This is a classic example of what type of antagonism?

An intravenous (IV) solution contains 5% glucose and 0.9% NaCl. How many grams of glucose and NaCl respectively are required to make 1L of this solution? (Mr glucose = 180; Mr NaCl = 58.5) (2 marks)

Where does Krebs cycle take place take place?

Each of the following substances is initially present in proximal tubular fluid in the kidney. Which one is not normally present in urine?

The act of a white blood cell engulfing a bacterium is ________.