digestive system Flashcards

1
Q

large insoluble molecules - 3

A

starch, protein, fats

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

small soluble molecules - 4

A

sugars, amino acids, glycerol, fatty acids

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

amylase

A

turns starch to maltose

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

maltase

A

turns maltose into glucose

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

proteases

A

turns proteins into amino acids

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

lipases

A

turns lipids into fatty acids and glycerol

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

where is bile produced

A

liver

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

where is bile stored

A

gall bladder

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

where is bile released to

A

small intestine

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

is bile acidic or alkaline

A

alkaline - for enzymes in intestines

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

what does bile do - 2

A

neutralises stomach acid and emulsifies fats

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

why is fat emulsified

A

for larger surface area for faster work of lipase to turn fat into glycerol + fatty acids

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

peristalsis

A

muscular tissue down alimentary canal squeezes food through your gut in circular muscle contractions

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

digestion in mouth - 2

A

mechanical
-teeth break down food
-salivary glands produce amylase enzyme in saliva

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

oesophagus role

A

muscular tube that connects mouth and stomach

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

stomach roles -3

A

-pummels food with muscular walls
-produces protease
-produces hydrochloric acid

17
Q

large intestine/colon role

A

excess water is absorbed from food

18
Q

why does the stomach produce hydrochloric acid

A

-to kill bacteria
-optimum ph for protease enzyme (2)

19
Q

pancreas role

A

produces the enzymes:
-protease
-amylase
-lipase
into the small intestine

20
Q

small intestine role - 2

A

-uses enzymes: protease, amylase, lipase
-where nutrients are absorbed out of the body

21
Q

what are the 2 parts of the small intestine

A

duodenum, illium

22
Q

role of rectum

A

where faeces are stored until leaving through anus

23
Q

how are villli adapted for absorption - 3

A

-long-large sa:v
-permeable 1-cell layer- short diffusion distance
-long- time to break down + absorb a;; food

24
Q
A