Digestive System Flashcards

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1
Q

What is peristalsis ?

A

Several muscles contractions push food down oesophagus

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2
Q

Where is protease produced ?

A

Pancreas

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3
Q

Function of bile ?

A

Emulsify fats - breaks fat down to increase rate of digestion by lipase

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4
Q

Function of fats ?

A

Energy store
Thermal insulation
Protects organs

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5
Q

Function of pancreas ?

A

Produces enzymes such as protease and lipase

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6
Q

Function of vitamin D in a balanced diet ?

A

Helps with absorption of calcium

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7
Q

What is digestion ?

A

Breakdown of large molecules into small molecules

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8
Q

Function of stomach ?

A

Produces protease

Produces hydrochloric acid which kills bacteria and digests food

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9
Q

Function of duodenum (last part of intestine) ?

A

Last site of digestion for carbohydrates, proteins and fats

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10
Q

What digests protein into amino acids

A

Proteases

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11
Q

Where is maltase produced ?

A

Small intestine

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12
Q

Function of colon ?

A

Absorbs water into blood

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13
Q

Function of vitamin A in a balanced diet ?

A

Used to make rod cells in retina

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14
Q

What is in saliva ?

A

Amylase - breaks down starch

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15
Q

Where is bile made and stored ?

A

Made in liver

Stored in gall bladder

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16
Q

Word equation for photosynthesis

A

Carbon dioxide + water —> glucose + oxygen

17
Q

What disease is caused by lack of iron ?

A

Anaemia

18
Q

Function of vitamin C ?

A

Help absorb protein = holds organs and tissues together

19
Q

Where is amylase produced ?

A

Salivary glands and pancreas

20
Q

Function of calcium ?

A

Used to make bones

21
Q

Function of the ileum ?

A

Absorption of small molecules into the blood stream

22
Q

What enzyme digests starch to maltose ?

A

Amylase

23
Q

How is the ileum specialised for absorption?

A

One cell thick - short diffusion distance
Villi on ileum wall - increase surface area
Capillaries in villi - maintain high concentration gradient

24
Q

What enzyme digests maltose to glucose ?

A

Maltase

25
Q

Function of iron ?

A

Help produce haemoglobin

26
Q

Where is lipase produced ?

A

Pancreas

27
Q

What enzymes digest fats to fatty acids and glycerol ?

A

Lipase