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25 Cards in this Set
- Front
- Back
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What is diarrhoea |
The loss of water faeces from the anus |
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How can diarrhoea be deathly |
Loss of significant amount of water and ions |
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Treatment for diarrhoea |
Rehydration therapy |
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What does the liver produce |
Bile |
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Where is bile stored |
Gall bladder |
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One cause of diarrhoea |
Cholera |
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What does the large intestine do |
Absorbs waters |
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What does the pancreas do |
Produce digestive enzymes 1. Protease 2. Lipase 3. Amylase |
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How does cholera lead to diarrhoea |
1. Bacteria attach on small intestine 2. Produce toxin 3. Toxin stimulates cell to produce chloride ions into lumen of small intestine 4. Until water potential is lower in intestine 5. Osmosis occurs 6. Loss of water + chloride ions in blood |
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What enzyme is found in the stomach |
Protease |
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What breaks down starch and into what |
Amylase Simple sugars |
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What breaks down proteins and into what |
Protease Amino acids |
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What breaks lipids and into what |
Lipase Fatty acids and glycerol |
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What is a tissue |
A group of cells that have similar structures and function |
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What is a tissue |
A group of cells that have similar structures and function |
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What is an organ |
A group of tissues working together to carry out a specific function |
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What is an organ system |
Group of organs working together to create an organism |
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Mechanical digestion in stomach |
Churning action of stomach muscles |
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Mechanical digestion in stomach |
Churning action of stomach muscles |
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What is hydrochloric acid in stomach for |
pH for protease to work efficiently |
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What does bile do |
1. Neutralises the acid from stomach 2. Emuslifies lipids into smaller bits for lipase to break it down into fatty acids and glycerol |
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What are enzymes made of |
Protein molecules |
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What does temperature do to enzymes |
Speeds up reaction, more collisions between substrate and enzymes, higher rate of active site and substrate |
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How does having good blood supply in villi do |
Rapidly removes products from digestion —-> high concentration gradient |
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What are all the features of villi for |
High rate of diffusion |
