Biology- Digesting and Enzymes

Descrição

FlashCards sobre Biology- Digesting and Enzymes, criado por HazelAlison Dewar em 23-01-2015.
HazelAlison Dewar
FlashCards por HazelAlison Dewar, atualizado more than 1 year ago
HazelAlison Dewar
Criado por HazelAlison Dewar mais de 9 anos atrás
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Resumo de Recurso

Questão Responda
Amylase Enzymes Enzymes can break down nutrients into small, soluble molecules that can be absorbed. For example, AMYLASE causes the breakdown of starch into simple sugars.
Different Enzymes Chemical digestion involves enzymes. These are proteins that function as biological catalysts.
Enzymes in Saliva Saliva is slightly alkaline. Enzymes in saliva convert starch into glucose: amylase catalyses: starch → maltose maltase catalyses: maltose → glucose
In the stomach: From starch to glucose The stomach produces hydrochloric acid. It kills many harmful microorganisms that might have been swallowed along with the food. The enzymes in the stomach work best in acidic conditions – at a low pH.
Bile: From starch to glucose The enzymes in the small intestine work best in alkaline conditions - but the food is acidic after being in the stomach. Bile is a substance produced by the liver.
BILE Bile is secreted into the small intestine where it has two effects: it neutralises the acid - providing the alkaline conditions needed in the small intestine it emulsifies fats - providing a larger surface area over which the lipase enzymes can work

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