Topic 3- Digestion and absorption

Question 1

What is the function of digestion?

Answer 1

-a process in which relatively large, insoluble biological molecules in food (such as starch, and proteins) are hydrolysed into smaller, soluble molecules that can be absorbed across the cell membranes into the bloodstream and delivered to cells in the body

Question 2

What are essential for the process of digestion as they catalyse the hydrolysis?

Answer 2

Enzymes

Question 3

What is the purpose of these small, soluble (such as glucose and amino acids) molecules?

Answer 3

-provide cells with energy (via respiration)
-build other molecules for cell growth, repair and function

Question 4

What are proteins hydrolysed into?

Answer 4

Amino acids

Question 5

What are carbohydrates hydrolysed into?

Answer 5

Simple sugars

Question 6

What are lipids hydrolysed into?

Answer 6

-Glycerol
-Fatty acids

Question 7

What structures does the human digestive system consist of?

Answer 7

-Glands
-Stomach
-Small intestine
-Liver
-Large intestine

Question 8

The salivary gland and glands in the pancreas are both involved with digestion, what do they produce?

Answer 8

Digestive juices

Question 9

What are the stomach and small intestine the site of?

Answer 9

Digestion

Question 10

What is the function of the liver?

Answer 10

Produces bile

Question 11

The small intestine is the site of digestion and what else?

Answer 11

Absorption

Question 12

What is the large intestine the site of?

Answer 12

Water reabsorption