- 1. The digestive system is a complex network of organs and glands that work together to break down food into nutrients that the body can absorb and use for energy. It consists of the mouth, esophagus, stomach, small intestine, large intestine, liver, gallbladder, and pancreas. Each organ has a specific function in the digestive process, from chewing and swallowing food in the mouth to absorbing nutrients in the small intestine. The digestive system also plays a role in maintaining the body's fluid and electrolyte balance, as well as in immune function. Overall, the digestive system is essential for the body to extract and utilize the nutrients it needs to function properly.
What is the main function of the digestive system?
A) Transport oxygen to cells
B) Break down food and absorb nutrients
C) Regulate body temperature
D) Pump blood to the body
- 2. Where does digestion begin?
A) Stomach
B) Small intestine
C) Esophagus
D) Mouth
- 3. Which organ produces bile to aid in the digestion of fats?
A) Pancreas
B) Small intestine
C) Gallbladder
D) Liver
- 4. Where are nutrients absorbed into the bloodstream?
A) Small intestine
B) Esophagus
C) Large intestine
D) Stomach
- 5. Which enzyme in saliva helps break down carbohydrates?
A) Pepsin
B) Lipase
C) Trypsin
D) Amylase
- 6. The organ responsible for reabsorbing water and minerals from food to form feces is the:
A) Small intestine
B) Esophagus
C) Large intestine
D) Liver
- 7. What is the name of the wave-like muscle contractions that propel food through the digestive system?
A) Peristalsis
B) Assimilation
C) Digestion
D) Mechanical breakdown
- 8. Which enzyme in the stomach helps break down proteins?
A) Pepsin
B) Trypsin
C) Lipase
D) Amylase
- 9. Which part of the digestive system connects the throat to the stomach?
A) Esophagus
B) Small intestine
C) Colon
D) Pancreas
- 10. What is the primary function of the large intestine?
A) Digest proteins
B) Produce insulin
C) Produce bile
D) Absorb water and electrolytes
- 11. Which hormone stimulates the release of gastric juices in the stomach?
A) Glucagon
B) CCK
C) Insulin
D) Gastrin
- 12. Which organ produces insulin and digestive enzymes?
A) Small intestine
B) Pancreas
C) Liver
D) Gallbladder
- 13. Which enzyme in the small intestine helps digest fats?
A) Amylase
B) Trypsin
C) Lipase
D) Pepsin
- 14. What is the pathway food follows through the digestive system?
A) Stomach -> Small Intestine -> Mouth -> Esophagus -> Large Intestine
B) Esophagus -> Large Intestine -> Small Intestine -> Stomach -> Mouth
C) Small Intestine -> Stomach -> Esophagus -> Mouth -> Large Intestine
D) Mouth -> Esophagus -> Stomach -> Small Intestine -> Large Intestine
- 15. Where is the appendix located in the human body?
A) Lower right abdomen
B) Behind the liver
C) Above the lungs
D) Below the heart
- 16. What is the process of breaking down food physically and chemically?
A) Assimilation
B) Absorption
C) Digestion
D) Excretion
- 17. What is the role of probiotics in the digestive system?
A) Breaking down proteins
B) Storing excess nutrients
C) Promoting healthy gut bacteria
D) Producing bile
- 18. What is the name of the ring of muscle that controls the passage of food between the esophagus and the stomach?
A) Hepatic sphincter
B) Pyloric sphincter
C) Duodenal sphincter
D) Lower esophageal sphincter
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