Villi and Probiotics and prebiotics

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What has the surface of the small intestine been adapted for?
For efficient absorption of the soluble products of digestion.
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What do millions of villi increase?
The surface area for diffusion of soluble products of digestion.
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What is the villi surface formed of?
A single layer of cells - allows molecules to diffuse rapidly into villi
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What does the large capillary network do?
It carries absorbed molecules rapidly away - maintains steep concentration gradient for diffusion into villius.
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What is a visking tube used for?
It can be used in experiments to investigate digestion, including the effect of different concentration of digestive enzymes on the digestion of large food molecules.
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What are functional foods?
Foods that claim to make you healthier when you eat them.
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What are probiotic foods?
They contain 'friendly' bacteria that are usually either bifidobacteria or lactobacillus.
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What are prebiotics?
Foods that contain high levels of oligosccharides.
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Card 2

Front

What do millions of villi increase?

Back

The surface area for diffusion of soluble products of digestion.

Card 3

Front

What is the villi surface formed of?

Back

Preview of the front of card 3

Card 4

Front

What does the large capillary network do?

Back

Preview of the front of card 4

Card 5

Front

What is a visking tube used for?

Back

Preview of the front of card 5
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