IB Biology Digestive System

What happens if one organ of the digestive system is not functioning properly?

• We will not be able to digest food properly.

• We will have no problems.

• It will only affect my digestive system, but not other body systems.

Tags

NGSS.MS-LS1-3

Which organ of the digestive system secretes pepsin and hydrochloric acid?

• mouth

• stomach

• esophagus

• small intestine

Tags

NGSS.MS-LS1-7

Which organ of the digestive system begins the breakdown of proteins in food?

• mouth

• stomach

• esophagus

• small intestine

The enzyme, PEPSIN, breaks down proteins into...

• glucose

• fatty acids

• amino acids

• nucleic acids

The breakdown of starch (carbohydrates) begins in the...

• small intestine

• stomach

• large intestine

• mouth

Amylase is an enzyme found in the ___________ and begins breaking down which food molecule?

• mouth; fats

• stomach; fats

• stomach; carbohydrates

• mouth; carbohydrates

The enzyme, LIPASE, breaks down lipids (fats) into...

• glucose

• fatty acids

• amino acids

• nucleic acids

Which of these is NOT a function of the digestive system?

• breaks down food

• absorbs nutrients

• eliminates waste

• takes oxygen to body cells

The process of breaking down food into nutrient rich molecules.

• absorption

• digestion

• peristalsis

• villi

The process by which nutrient molecules pass through the wall of your digestive system into your blood.

• absorption

• digestion

• peristalsis

• villi