THE DIGESTIVE SYSTEM:THE SMALL INTESTINE

Question 1

Name the 1 part of the small intestine

Answer 1

deudenum

Question 2

Name the 2nd part of the small intestine

Answer 2

ileum

Question 3

What happens when partially digested food from the stomach enters the duodenum?

Answer 3

the partially digested food from the stomach triggers the duodenum to produce HORMONES

Question 4

What does the hormones in the duodenum do?

Answer 4

the hormones in the duodenum tell the pancreas to release digestive enzymes

Question 5

What ELSE do hormones in the duodenum do?

Answer 5

the hormones in the duodenum tell the gallbladder to release bile

Question 6

What do the secreted enzymes from the pancreas do in the duodenum?

Answer 6

They break down lipids, carbohydrates and proteins

Question 7

What enzymes are released from the pancreas into the duodenum?

Answer 7

lipase,amylase, protease(trypsisn)

Question 8

What does the pancreas do?

Answer 8

secretes digestive enzymes through the pancreatic duct into duodenum

Question 9

What does the liver do?

Answer 9

it produces bile

Question 10

Where is bile stored?

Answer 10

bile is stored in the gall bladder

Question 11

What is bile?

Answer 11

yellow-greenish alkaline fluid

Question 12

What is the PH of bile?

Answer 12

PH 7

Question 13

Explain 1 function of bile

Answer 13

Bile neutralises stomach acid to reduce damage to the SI

Question 14

Explain a 2nd function of bile

Answer 14

Bile emulsifies fat, breaking it down to smaller pieces to increase the SA for enzymes

Question 15

Explains a 3rd function of bile

Answer 15

Bile increases the PH for other enzymes to work

Question 16

What is another thing that the liver does?

Answer 16

Produces mucus

Question 17

how is mucus in the SI helpful?

Answer 17

It provides extra layer that can reduce damage to the lining of the SI

Question 18

Why is bile a useful advantage for enzymes

Answer 18

Lipase needs more neutral conditions so the neutralising bile helps lipase to work in the SI

Question 19

What does Lipase do?

Answer 19

Converts lipids—-) fatty acids + glycerol

Question 20

How does the liver aid break down fats

Answer 20

the liver produces bile which emulsifies fat into smaller pieces

Question 21

How does the gallbladder aid in the break down of fats?

Answer 21

It stores the bile to be used in the emulsification of fats

Question 22

How does the pancreas aid in the breakdown of fats?

Answer 22

It secretes lipase enzymes into the duodenum

Question 23

How does the SI aid in the breakdown of fats?

Answer 23

The SI is where fats are broken down

Question 24

What is trypsin?

Answer 24

secreted in the pancreas into the duodenum

Question 25

What does trypsin do?

Answer 25

breaks down proteins into peptides

Question 26

What does protease enzymes in the SI do?

Answer 26

proteins-)amino acids