Digestive System Assessment

Most digestion occurs in:

• mouth

• small intestine

• large intestine

Digestion of starches begins in the:

• mouth

• stomach

• large intestine

Why do we have microvilli?

• 1.To protect the intestinal lining.

• To vastly increase the intestine’s surface area.

• To block acids coming from the stomach.

Taking food into the mouth is known as ____________

• digestion

• elimination

• ingestion

When large proteins are chemically digested, they are broken up into many smaller

• simple sugars

• amino acids

• nucleic acids

Tags

NGSS.MS-LS1-7

When many large carbohydrates are chemically digested they are broken into many smaller _____

• amino acids

• simple sugars

• nucleic acids

Food is broken down in the mouth both mechanically by chewing, and chemically, by ____ present in the saliva.

• surface area

• enzymes

• amino acids

Villi present in the small intestine are important because they create more ______ so that more digested food can be absorbed into the blood stream.

• lipids

• amino acids

• surface area

Food is moved slowly through the digestive system though muscular contraction.

• mechanical

• surface area

• peristalsis

Excess water is re-absorbed from undigested food by this______

• large intestine

• small intestine

• stomach