Activities Of The DS

Question 1

Ingestion

Answer 1

Intake of food into the mouth

Question 2

Propulsion

Answer 2

Active propelling of food from one digestive organ to the next

Question 3

Mechanical digestion

Answer 3

Breaking down food into smaller prices thereby preparing food for further degradation by enzymes

Question 4

Chemical digestion

Answer 4

Breakdown of large, insolvable macromolecule into their smaller, solvable building blocks by enzymes

Question 5

Absorption

Answer 5

Movement of soluble food molecules across the call of the gut into the blood stream or lymph

Occurred mostly in the small intestines, this is where drugs are absorbed

Inflammation (IBD) or other problems with the mucosa can effect the absorption (e.g chronns disease)

There are a number of transport systems, most rely on secondary active transport to carry nutrients across the cell membrane

Water is absorbed by

Question 6

Defaecation

Answer 6

Removal of indigestible material from the body