The Process Of Digestion! Trivia Quiz
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Questions and Answers
- 1.
This occurs in the Cephalic phase of digestion:
- A.
Saliva contains digestive juices secreted by the salivary gland in the mouth.
- B.
At the first thought of food, the nervous system stimulates the release of digestive juices.
- C.
Chewing moistens the food and mechanically breaks it into smaller pieces.
- D.
Salivary glands secrete and stomach churns at the thought of food.
- E.
Hunger and appetite work together to prepare the GI tract for digestion.
Correct Answer(s)
B. At the first thought of food, the nervous system stimulates the release of digestive juices.
D. Salivary glands secrete and stomach churns at the thought of food.
E. Hunger and appetite work together to prepare the GI tract for digestion.Explanation
During the cephalic phase of digestion, the nervous system is stimulated at the first thought of food, which triggers the release of digestive juices by the salivary glands. This is followed by the secretion of saliva and the churning of the stomach in response to the thought of food. Hunger and appetite also play a role in preparing the gastrointestinal tract for digestion.Rate this question:
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- 2.
Peristalsis (muscular contractions) moves food through the _______
Correct Answer(s)
GI Tract
gi tract
G.I. TractExplanation
Peristalsis is the process of muscular contractions that helps in moving food through the gastrointestinal (GI) tract. The term "GI Tract" refers to the entire digestive system, including the stomach, small intestine, and large intestine. The variations in capitalization and abbreviation (gi tract and G.I. Tract) are acceptable and still refer to the same concept.Rate this question:
- 3.
The mass of food chewed and moistened in the mouth is called:
- A.
Chyme
- B.
Lysozymes
- C.
Bolus
- D.
Intrinsic factor
Correct Answer
C. BolusExplanation
The correct answer is bolus. Bolus refers to the mass of food that has been chewed and moistened in the mouth before it is swallowed. It is a cohesive mass that is formed by the tongue and saliva, making it easier to swallow and digest. Chyme, on the other hand, is the semi-fluid mixture of partially digested food and digestive juices that is formed in the stomach. Lysozymes are enzymes found in saliva that help break down bacteria, and intrinsic factor is a protein necessary for the absorption of vitamin B12 in the small intestine.Rate this question:
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- 4.
Protein to absorb vitamin B12 is called
- A.
Gastric lipase
- B.
Intrinsic factor
- C.
Pepsin
- D.
Chyme
Correct Answer
B. Intrinsic factorExplanation
Intrinsic factor is a protein that is required for the absorption of vitamin B12 in the small intestine. It is produced by the parietal cells in the stomach lining and binds to vitamin B12, protecting it from degradation by stomach acid. Intrinsic factor then carries vitamin B12 to the ileum, where it is absorbed into the bloodstream. Without intrinsic factor, vitamin B12 cannot be efficiently absorbed and can lead to a deficiency.Rate this question:
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- 5.
The semi-solid product of mechanical and chemical digestion in the _________ is called _____.
Correct Answer
stomach, chyme
stomach chymeExplanation
Partially digested in the stomach and released into the duodenum.Rate this question:
- 6.
What are the three sections of the small intestine?
- A.
Ileum
- B.
Duodenum
- C.
Cecum
- D.
Jejunum
- E.
Colon
Correct Answer(s)
A. Ileum
B. Duodenum
D. JejunumExplanation
The small intestine is divided into three sections: the ileum, duodenum, and jejunum. The ileum is the final part of the small intestine, where most of the nutrients are absorbed into the bloodstream. The duodenum is the first part of the small intestine, where the partially digested food from the stomach mixes with digestive enzymes from the pancreas and bile from the liver. The jejunum is the middle part of the small intestine, where further absorption of nutrients occurs. The other options, cecum and colon, are part of the large intestine and not the small intestine.Rate this question:
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- 7.
Chyme is slowly released through the ____________to the small intestine.
- A.
Cardiac sphincter
- B.
Ileoceal Valve
- C.
Colon
- D.
Pyloric Sphincter
Correct Answer
D. Pyloric SphincterExplanation
The correct answer is the Pyloric Sphincter. The pyloric sphincter is a ring of smooth muscle located between the stomach and the small intestine. Its main function is to regulate the flow of chyme from the stomach into the small intestine. It opens and closes to allow small amounts of chyme to pass through, ensuring that digestion and absorption can occur efficiently.Rate this question:
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- 8.
What connects the small intestine to the large intestine?
- A.
Ileocecal valve
- B.
Cardiac sphincter
- C.
Stomach
- D.
Colon
Correct Answer
A. Ileocecal valveExplanation
The ileocecal valve connects the small intestine to the large intestine. It is a one-way valve that prevents the backflow of fecal matter from the large intestine into the small intestine. This valve regulates the passage of digested food, allowing it to move from the small intestine into the large intestine for further absorption of water and electrolytes before elimination. The cardiac sphincter is located between the esophagus and the stomach, the stomach is a separate organ involved in digestion, and the colon is the final portion of the large intestine.Rate this question:
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- 9.
Most of the _________ and _________ take place in the small intestine.
Correct Answer
digestion and absorptionExplanation
The question is asking for the processes that occur in the small intestine. The small intestine is responsible for the digestion and absorption of nutrients. Digestion refers to the breakdown of food into smaller molecules, while absorption refers to the uptake of these molecules into the bloodstream. Therefore, most of the digestion and absorption processes take place in the small intestine.Rate this question:
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Current Version
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Mar 22, 2023Quiz Edited by
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Feb 26, 2010Quiz Created by
Colleennicole
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