DIGESTIVE SYSTEM

Name the different digestive processes.

• alimentary canal, accessory canal

• mastication, peristalsis

• ingestion, digestion, absorption, assimilation and egestion

• All of the above

The process of chewing is also known as

• mastication

• churning

• ingestion

• assimilation

Peristalsis is an automatic wave of muscle contraction and relaxation that moves food in one direction through the digestive tract

• true

• false

The colon reabsorbs the nutrients.

• true

• false

Name the parts of the alimentary canal where peristalsis is used to move food along

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The breaking down of lipids into tiny droplets is called emulsification

• true

• false

Pepsin is the enzyme used to break down the proteins in the stomach and small intestines to peptides.

• true

• false

The fluid secreted into the small intestine to neutralize the chyme from the stomach is

The inner wall of the small intestine has millions of finger-like projections called

Tags

NGSS.MS-LS1-3

State two functions of hydrochloric acid in the stomach

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Answer explanation

It prevents infections as it kills bacteria on the food molecules, it also helps with digestion of food molecules.