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Bloating, flatulence and diarrhoea after drinking milk - but not yogurt or cheese

Objectives

By the end of this exercise you should be able to:

Explain why most people (other than those of north European origin) have some degree of lactose intolerance and suffer gastrointestinal discomfort after consuming milk, but are able to consume yogurt and cheese with no problems.

Describe in outline the anaerobic metabolism of glucose in yeast, leading to the formation of ethanol and carbon dioxide.

Describe the inhibition of glucose metabolism in bacteria and red blood cells by fluoride.

Describe the way in which glucose metabolism in red blood cells is linked to the formation of ATP, and is controlled by the availability of ADP and inorganic phosphate.