What is the primary function of the digestive system

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Reference no: EM133870922

Questions

1. What is the primary function of the digestive system?

A) To produce hormones
B) To transport oxygen
C) To break down food and absorb nutrients
D) To circulate blood

2. Where does digestion begin?

A) Stomach
B) Mouth
C) Small intestine
D) Esophagus

3. What enzyme in saliva breaks down starches into sugars?

A) Pepsin
B) Amylase
C) Lipase
D) Lactase

4. Which organ is primarily responsible for absorption of nutrients?

A) Large intestine
B) Stomach
C) Liver
D) Small intestine

5. Which structure prevents food from entering the trachea?

A) Esophagus
B) Epiglottis
C) Uvula
D) Pharynx

6 What is the role of hydrochloric acid in the stomach?

A) Neutralizes pH
B) Breaks down proteins
C) Emulsifies fats
D) Absorbs nutrients

7. What is the primary function of the large intestine?

A) Enzyme production
B) Water absorption
C) Protein digestion
D) Lipid synthesis

8. Which part of the digestive system is responsible for the production of bile?

A) Pancreas
B) Gallbladder
C) Stomach
D) Liver

9. Which organ stores bile?

A) Pancreas
B) Small intestine
C) Gallbladder
D) Stomach

10. What is the main function of the pancreas in digestion?

A) Emulsifying fats
B) Absorbing water
C) Producing digestive enzymes
D) Storing vitamins

11. What type of muscle contractions help move food through the digestive tract?

A) Voluntary
B) Peristalsis
C) Tetanic
D) Static

12. Which of the following is NOT a section of the small intestine?

A) Duodenum
B) Ileum
C) Jejunum
D) Cecum

13. What is the primary role of villi in the small intestine?

A) Produce digestive enzymes
B) Increase surface area for absorption
C) Secrete digestive juices
D) Transport waste

14. Pepsin is an enzyme that digests what kind of macromolecule?

A) Carbohydrates
B) Proteins
C) Fats
D) Nucleic acids

15. What condition results from the backward flow of stomach acid into the esophagus?

A) Gastritis
B) Ulcer
C) Acid reflux
D) Indigestion

16. Which vitamin is produced in the large intestine?

A) Vitamin A
B) Vitamin D
C) Vitamin B12
D) Vitamin K

17. What is the main purpose of the appendix in the human digestive system?

A) Stores digestive enzymes
B) Produces hormones
C) No essential purpose in digestion
D) Absorbs nutrients

18. Which substance is primarily responsible for emulsifying fats in the digestive process?

A) Amylase
B) Pepsin
C) Bile
D) Insulin

19. Which of the following does the stomach produce to protect its lining from acid?

A) Amylase
B) Mucus
C) Bacteria
D) Bile

20. Which of the following nutrients begin their digestion in the stomach?

A) Carbohydrates
B) Proteins
C) Lipids
D) Vitamins

Reference no: EM133870922

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