Digestion & Enzymes

Question 1

A student eats a piece of mango and knows that digestion begins in the mouth, continues in the stomach, and finishes in the small intestine. Which statement correctly describes what the enzymes do and where each of those enzymes is produced?

Accepted Answer

Salivary glands secrete amylase that begins starch digestion in the mouth; the stomach secretes pepsin that begins protein digestion; the pancreas releases pancreatic enzymes into the small intestine that complete digestion of carbohydrates, proteins, and fats.

Answer

Salivary glands release amylase that starts breaking down proteins in the mouth; the stomach releases lipase that digests fats; the small‑intestine lining releases lactase that finishes carbohydrate digestion.

Answer

The liver produces bile that chemically digests proteins in the stomach; the pancreas releases amylase that breaks down fats in the small intestine; the stomach lining releases trypsin that finishes starch digestion.

Answer

Salivary glands release lipase that starts fat digestion in the mouth; the stomach releases amylase that breaks down carbohydrates; the small intestine produces pepsin that completes protein digestion.

Question 2

After eating a slice of pizza, the food travels from the mouth to the large intestine. Which option correctly lists the organs in the order the food passes through and gives one main role each organ plays in digestion?

Accepted Answer

Mouth – chewing and saliva begins starch digestion; Esophagus – moves food to the stomach; Stomach – mixes food with acid and pepsin to break proteins; Small intestine – continues chemical digestion with enzymes and absorbs nutrients; Large intestine – absorbs water and forms waste.

Answer

Mouth – chewing; Stomach – absorbs nutrients; Small intestine – stores food; Large intestine – mixes food with stomach acid.

Answer

Mouth – chewing; Esophagus – mixes food with bile; Stomach – adds pancreatic enzymes; Small intestine – absorbs water; Large intestine – absorbs nutrients.

Answer

Mouth – chewing; Esophagus – moves food; Stomach – mixes food with acid; Liver – digests fats; Small intestine – absorbs water; Large intestine – absorbs nutrients.

Question 3

Which process best illustrates how the food a person eats is chemically rearranged to release energy that cells can use as it moves through the body?

Accepted Answer

Cellular respiration

Answer

Protein synthesis

Answer

Diffusion

Answer

Photosynthesis

Try three questions

A student eats a piece of mango and knows that digestion begins in the mouth, continues in the stomach, and finishes in the small intestine. Which statement correctly describes what the enzymes do and where each of those enzymes is produced?

After eating a slice of pizza, the food travels from the mouth to the large intestine. Which option correctly lists the organs in the order the food passes through and gives one main role each organ plays in digestion?

Which process best illustrates how the food a person eats is chemically rearranged to release energy that cells can use as it moves through the body?

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