Digestion

Question 1

What does the alimentary canal do in the process of digestion?

Answer 1

(Small intestine) it is the tube passing right through the the body and the nutrients cannot be used by cell until they have passed through the walls of the alimentary canal. This process is called absorption

Question 2

List the parts of the human body

Answer 2

Mouth, oesophagus, liver, gallbladder, stomach, pancreas, small intestine, large intestine, colon, anus

Question 3

Define digestion

Answer 3

Before absorption can occur large pieces of food must be broken into smaller ones and large molecules into small ones.

Question 4

How do teeth help with digestion

Answer 4

Break down food physically by chewing, tearing and grinding the substance between the teeth

Question 5

What does saliva do

Answer 5

Helps with break down of food chemically

Question 6

What does amylase do

Answer 6

Breaks down starch into sugar (in the mouth)

Question 7

What does protease do

Answer 7

Breaks down proteins to amino acids (in the stomach)

Question 8

What does lipase do?

Answer 8

Breaks down fats to fatty acids and glycerol (small intestines)

Question 9

What substance are absorbed through walls of small intestine to the blood

Answer 9

Amino acids, sugar, fatty acids, glycerol

Question 10

What substance absorbed through colon

Answer 10

Water

Question 11

Name the parts of villi

Answer 11

Lacteal, capillary network, nerve, mucous cell, columnar epithelial cell