Digestive System Quiz

What is the primary function of the digestive system?

• To circulate blood throughout the body

• To convert food into energy and basic nutrients

• To control body temperature

• To remove waste products from the body

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DOK Level 1: Recall

Which enzyme is responsible for breaking down proteins into peptides?

• Amylase

• Lipase

• Pepsin

• Lactase

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DOK Level 1: Recall

Where does the majority of nutrient absorption occur in the digestive system?

• Stomach

• Small intestine

• Large intestine

• Esophagus

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DOK Level 1: Recall

What is the role of bile in the digestive system?

• It breaks down proteins

• It emulsifies fats

• It converts glucose to glycogen

• It neutralizes stomach acid

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DOK Level 1: Recall

Which of the following is NOT a part of the digestive system?

• Liver

• Kidney

• Pancreas

• Gallbladder

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DOK Level 1: Recall

How does the structure of the villi in the small intestine aid in its function?

• Increases surface area for absorption

• Produces digestive enzymes

• Stores undigested food

• Filters harmful bacteria

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DOK Level 2: Skill/Concept

What is the function of amylase in the digestive process?

• It breaks down fats into fatty acids and glycerol

• It breaks down proteins into amino acids

• It breaks down carbohydrates into simple sugars

• It aids in the absorption of vitamins

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DOK Level 2: Skill/Concept

Describe the role of the large intestine in the digestive system.

• Absorption of water and electrolytes

• Production of digestive enzymes

• Primary digestion of proteins

• Secretion of bile

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DOK Level 2: Skill/Concept

Explain how the pH level in the stomach affects enzyme activity during digestion.

• Higher pH increases the activity of all digestive enzymes

• Lower pH is necessary for pepsin activation

• Constant pH is essential for all digestive processes

• pH levels do not affect digestive enzymes

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DOK Level 2: Skill/Concept

What is the significance of the enzyme lactase in the digestive system?

• It helps in the digestion of lactose found in milk

• It breaks down cellulose in plant materials

• It aids in the absorption of proteins

• It synthesizes vitamins necessary for digestion

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DOK Level 2: Skill/Concept