Digestion

Question 1

villi

Answer 1

are tiny finger like projections

are good for absorbing nutrients bc:

• thin outer layer of cells
• dense layer of capillaries/good blood supply
• large surface area

Question 2

ingestion

Answer 2

taking food into the body through the mouth

Question 3

digestion

Answer 3

breaking down food into small molecules

Question 4

absorption

Answer 4

the digested food passes through the wall of the digestive system into the blood

Question 5

assimilation

Answer 5

the way in which all body cells use digested food

Question 6

egestion

Answer 6

any food that could not be digested passes out of the digestive system through the anus

Question 7

mouth function

Answer 7

food enters the body here. some digestion occurs here due to the teeth and the enzyme amylase

Question 8

oesophagus func

Answer 8

food passes down the gullet to reach the stomach

Question 9

stomach

Answer 9

food is churned around for 3-4 hours and mixed with acid. the ph here is approx. 1.5

Question 10

small intestine

Answer 10

digested food is absorbed here

Question 11

large intestine

Answer 11

water is absorbed here.

Question 12

pancreas

Answer 12

produces and releases enzymes into the small intestine

Question 13

liver

Answer 13

releases bile into the small intestine. this aids in digestion