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Flashcards in digestive system Deck (23)
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1

what enzymes that are in saliva do the salivary glands release and what does it do?

Amylase - hydrolyses starch into maltose and then glucose

2

what does the epiglottis do?

stops the bolus of food from entering the trachea and prevents choking

3

what do the salivary glands do?

work alongside the tongue to form food into a bolus and lubricate the oesophagus

4

what is the oesophagus

the oesophagus is a 25cm long piece of muscle that uses peristalsis to push the food down to the cardiac sphincter before entering the stomach.

5

Define Peristalsis using the oesophagus as an example

the involuntary constriction and relaxation of the muscles of the oesophagus, creating wave-like movements which push the contents of the oesophagus forward.

6

what is the pancreas' role in digestion

to produce biological catalysts and enzymes to speed up the digestive reactions.

7

what does the liver do?

the liver produces bile

8

what does bile do

bile helps with the digestion of lipids

9

what are lipids

fats and oil

10

where is bile produced

liver

11

where is bile stored

in the gall bladder

12

what organ absorbs food into the blood stream

small intestine

13

what does the intestine do

absorbs the nutrients of food into the blood stream.

14

what organ absorbs excess water back into the body

large intestine

15

what does the large intestine do

absorbs water back into the bloodstream

16

what does the rectum do

stores any waste products from digestion as faeces.

17

what does the anus do

let the faeces exit the body

18

what enzyme breaks down lipids?

lipase

19

what enzyme breaks down protein

protease

20

what enzymes breaks down carbohydrates

amylase and other carbohydrase

21

what does lipase hydrolyse lipids into

fatty acids and glycerol

22

what does protease hydrolyse protein intp

amino acids

23

what does amylase hydrolyse carbohydrates into

maltose and then glucose