SBI 3U Systems Unit Test Multiple Choice

Proteins are made up of long chains of

• Nucleic Acids

• Monosaccharides

• Glycerides

• Amino Acids

• Peptins

The nutrients in food are broken down by enzymes so that they can be

• absorbed

• acidified

• expelled

• neutralized

• sterilized

In which of the following lists are the events of digestion listed in the correct order?

• Ingestion, absorption, digestion, egestion

• Ingestion, digestion, absorption, egestion

• Absorption, ingestion, egestion, digestion

• Absorption, digestion, ingestion, egestion

• Ingestion, alimentation, absorption, egestion

Which step describes the process of transporting digested nutrients into the circulatory system?

• alimentation
• digestion
• ingestion
• absorption
• elimination

Rabbits have a long digestive system (compared to a fox). This long tube is needed to

• compensate for their small size
• make jumping easier
• increase digestion in the stomach
• allow them to stop digesting when they run
• digest plant cell wall material

How does bile help with the digestion of fats?

• Bile breaks lipid into glycerol and fatty acids.

• Bile hydrates the fat.

• Bile breaks fat droplets into smaller fat droplets (emulsification).

• Bile salts neutralize the acidic fats.

• Bile stimulates absorption by villi.

In which of the following do we NOT have chemical digestion?

• mouth
• esophagus
• stomach
• intestine
• None of the above

Which of the following pairs of organs and functions is incorrect?

• stomach and protein digestion
• oral cavity and starch digestion
• small intestine and bile production
• stomach and mechanical digestion
• large intestine and water absorption

Which part of the heart pumps blood to the lungs?

• left atrium
• left ventricle
• septum
• right atrium
• right ventricle

The tricuspid valve opens to the

• right atrium
• right ventricle
• left atrium
• left ventricle
• aorta