Unit 5 biology Dietary Fibre

Question 1

What are the 2 functions of Insoluble Dietary fibre?

Answer 1

helps feces pass out
- by adding bulk to the food to stimulate peristalsis
-by holding a lot of water to make feces softer

Question 2

What are the side effects of a Dietary fibre deficiency?

Answer 2

-constipation
increased risk of colorectal cancer

Question 3

What are some sources of Dietary fibres?

Answer 3

-plant foods only

Question 4

What are the 5 functions of water?

Answer 4

-reactant in some chemical reactions
-provides a medium for chemical reactions to take place
-acts as a medium of transport
-acts as a cooling agent to help regulate the body temperature
-major component of many lubricating fluids