The Human Digestive System Pt2

Question 1

When food is taken into the mouth

Answer 1

Ingestion

Question 2

What is saliva used for?

Answer 2

To bind the chewed food and make the bolus smooth to make swallowing easier

Secrete hormone directly into the bloodstream

Question 3

Functions of the tongue

Answer 3

It moves food from one side of the mouth to the other

Pushes food between the teeth

Mixes food with saliva

Question 4

Pepsin

Answer 4

It will digest the protein in an inactive form to polypeptide

Question 5

Lipase

Answer 5

Digests fat to fatty acids and glycerol

Question 6

Functions of the liver

Answer 6

Secretes bile that plays a role in physical breakdown of fats

Helps to maintain homeostasis by releasing nutrients into the bloodstream or withdrawing nutrients from it

Stores glycogen

Question 7

What is the main function of bile

Answer 7

Emulsifies fats, breaks it up into small droplets

Neutralises acidic chyme

Question 8

How may the pancreas act as an endocrine gland

Answer 8

Because the hormones are secreted directly into the bloodstream

Question 9

Hormone produced by the pancreas

And what it does?

Answer 9

Insulin
Converts excess glucose into glycogen and it makes cell membranes more permeable .

Glucagon
a hormone that tells cells in your liver and muscles to convert glycogen into glucose and release it into your blood so your cells can use it for energy