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Science, English, Business > Science - Digestion > Flashcards

Science - Digestion Flashcards

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0
Q

What is physical digestion?

A

Breakdown of food by chewing with teeth or mixing with stomach.

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1
Q

What is digestion?

A

Digestion is the breakdown of food into smaller molecules.

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2
Q

What is chemical digestion?

A

Breakdown of food by enzymes in the mouth and hydrochloric acid in stomach.

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3
Q

What is the function of the mouth?

A

Physical digestion by teeth and chemical digestion by amylase.

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4
Q

What is the function of the oesophagus?

A

Tube that passes food to stomach by peristalsis.

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5
Q

What is the function of the stomach?

A

Food is mixed with hydrochloric acid.

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6
Q

What is the function of the small intestine?

A

Chemical digestion is completed here and food is absorbed into blood.

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7
Q

What is the function of the liver?

A

Bile is produced here which breaks down fats.

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8
Q

What is the function of the pancreas?

A

Digestive juices are made here.

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9
Q

What is the function of the large intestine?

A

Water is absorbed into blood. Waste is called faeces.

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10
Q

What is the function of the rectum?

A

Faeces is stored here and passes out the anus.

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11
Q

What is peristalsis?

A

Waves of muscular contraction that push the food along the oesophagus.

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12
Q

What are enzymes?

A

Theya re chemicals made by the body that speed up reactions withiut being used up.

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13
Q

What enzyme does salive contain?

A

Amylase.

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14
Q

What is a substrate?

A

It is the substance that the enzyme acts on.

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15
Q

What is a product?

A

It is the substance formed by an enzyme.

16
Q

How many teeth does a child and adult with a full set have?

A

Child: 20
Adult: 32

17
Q

What is a catalyst?

A

A chemical used to speed up a reaction without being used up itself.

18
Q

Whata re the five stages of digestion?

A 
Ingestion
Digestion
Absorption
Assimilation 
Egestion

Science, English, Business (14 decks)

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