digestion

Question 1

what are the 2 types of carbohydrase?

Answer 1

• amylase: digest starch to maltose
• maltase: break down maltose into glucose

Question 2

what are the 2 types of protease and where are they found?

Answer 2

• trypsin: small intestine
• pepsin: stomach

Question 3

what is biles role in digestion?

Answer 3

• neutralise stomach acid
• emulsified fats to increase there surface area so they can be broken down

Question 4

what are accessory organs and eg?

Answer 4

organs that are involved in digestion but food doesn’t pass through them eg. pancreas, gall bladder, salivary glands

Question 5

what are the 5 stages of digestion?

Answer 5

• ingestion
• digestion
• absorbtion
• assimilation
• egestion

Question 6

structure and function of small intestine?

Answer 6

• 2 halfs:
  1. jejunum
  2. ilium
• long muscular tube with inner walls that have folds called villi and that secret digestive juices and enzymes
• where most nutrients is absorbed

Question 7

structure and function of the rectum?

Answer 7

• final section
• stores the feaces and carries out egestion which is the expulsion of the feaces

Question 8

structure and function of the stomach:

Answer 8

• a muscular sac with an inner layer that produces enzymes and glands that produce mucus to prevent enzyme damage and pepsin to digest proteins
• role is to store and digest food (mainly proteins)