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Food Digestion Processes Quiz

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Questions and Answers

What is the primary function of the folds in the stomach wall?

To enable the stomach to expand and hold large amounts of food (correct)
To mix the food and gastric juices through peristalsis
To produce gastric juice
To increase the surface area for absorption

What is the main function of the acid in the gastric juice?

To break down proteins into amino acids
To kill bacteria in the stomach
To help break down the structures that hold plant and animal cells together (correct)
To activate the enzyme pepsin

What is the role of the enzyme pepsin in the digestive process?

To help mix the food and gastric juices through peristalsis
To break down carbohydrates
To neutralize the acid in the stomach
To break down the proteins in foods into amino acids (correct)

What is the main function of the small intestine in the digestive system?

To complete the chemical digestion and absorb the nutrients from the food (B) Signup and view all the answers

What is the role of peristalsis in the digestive process?

To move the undigested food from the small intestine into the large intestine (C) Signup and view all the answers

What is the primary function of the large intestine in the digestive system?

To absorb water from the undigested food (C) Signup and view all the answers

What is the main function of the esophagus?

To move partially digested food from the mouth to the stomach (C) Signup and view all the answers

What is the process called where muscles in the esophagus contract and relax to push food down towards the stomach?

Peristalsis (B) Signup and view all the answers

What is the main function of the stomach?

To store food and allow you to go many hours between meals (A) Signup and view all the answers

How does the stomach aid in the digestive process?

The stomach breaks down food into smaller particles through chemical digestion. (C) Signup and view all the answers

What is the purpose of the muscular contractions in the esophagus known as peristalsis?

To move partially digested food from the mouth to the stomach (B) Signup and view all the answers

What is the approximate volume that an adult stomach can hold?

2 quarts (A) Signup and view all the answers

Which of the following is NOT a process that food goes through in the body?

Fermentation (A) Signup and view all the answers

What is the primary function of saliva in the digestion process?

To break down carbohydrates (C) Signup and view all the answers

Which type of digestion involves physically breaking food into smaller pieces?

Mechanical digestion (D) Signup and view all the answers

What is the advantage of breaking food into smaller pieces during digestion?

Both A and B (D) Signup and view all the answers

Which of the following is an example of a chemical reaction that occurs during digestion?

Saliva breaking down carbohydrates (C) Signup and view all the answers

What is the primary function of mechanical digestion?

To prepare food for chemical digestion (B) Signup and view all the answers

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