Where are food molecules absorbed in the body?
Food molecules are absorbed in the small intestine.
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What happens to large food molecules so that they can be absorbed?
Large food molecules are broken down by digestive enzymes into smaller, soluble molecules.
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What is the role of villi?
Villi increase the surface area of the small intestine for absorption of nutrients.
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What are the three key features of villi that make them effective at absorbing nutrients?
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What four roles do bacteria play in the digestive system?
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What is the role of digestive enzymes in the small intestine?
Digestive enzymes break down large food molecules into smaller, soluble molecules that can be absorbed.
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What vitamins are produced by bacteria in the digestive system?
Bacteria in the digestive system produce vitamin K.
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