(b) What are the industrial uses of yeast?
3. Describe mechanism of breathing in human beings.
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Industrial uses of yeast
Yeasts are the most widely used micro-organisms in the food industry due to their ability to ferment sugars to ethanol and carbon-dioxide. Some types of yeast, such as baker’s yeasts are grown industrially, and some may be used as protein sources, mainly in animal feed.
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3.This was an overview of the mechanism of breathing and mechanism of respiration in the human body. Breathing is the physical process of inhaling oxygen and exhaling carbon dioxide. The mechanism of breathing involves two main processes: inspiration and expiration. Inspiration occurs when the diaphragm and the external intercostal muscles contract.
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