Q: Which equation best represents the chemical breakdown of starch by salivary amylase?

$$\text{Starch} + \text{Amylase} \rightarrow \text{Maltose}$$

Q: Which equation best represents the chemical breakdown of triglycerides by pancreatic lipase?

$$\text{Triglyceride} + \text{Lipase} \rightarrow \text{Fatty acids} + \text{Glycerol}$$

Question 1

Which layer of the alimentary canal contains blood vessels, nerves, and sometimes glands, and is primarily composed of connective tissue?

Accepted Answer

Submucosa

Question 2

A patient presents with burning chest pain after meals. Which disorder is most likely, and what is the primary cause?

Accepted Answer

GERD; stomach acid refluxes into the esophagus

Question 3

Which of the following is NOT a function of saliva?

Accepted Answer

Absorbs nutrients

Question 4

Which salivary gland is located beneath the lower jaw (mandible), towards the back of the mouth?

Accepted Answer

Submandibular

Question 5

A patient with peptic ulcer disease is found to have a bacterial infection damaging the protective mucous layer of the stomach. Which bacterium is most commonly responsible?

Accepted Answer

Helicobacter pylori

Question 6

Which of the following correctly matches the digestive enzyme with its substrate and site of action?

Accepted Answer

Lipase; fats; small intestine

Question 7

Which structure prevents food from entering the trachea during swallowing?

Accepted Answer

Epiglottis

Question 8

A patient is diagnosed with diverticulitis. What is the underlying anatomical change in the colon that leads to this condition?

Accepted Answer

Formation of pouches in the colon wall

Question 9

Which of the following best describes the function of villi and microvilli in the small intestine?

Accepted Answer

Increase surface area for absorption

Question 10

Which equation best represents the chemical breakdown of starch by salivary amylase?

Accepted Answer

$$	ext{Starch} + 	ext{Amylase} ightarrow 	ext{Maltose}$$

Question 11

Which of the following is TRUE regarding bile production and its role in digestion?

Accepted Answer

Bile is produced by the liver and emulsifies fats in the small intestine

Question 12

A patient with celiac disease must avoid which dietary component to prevent symptoms?

Accepted Answer

Gluten

Question 13

Which of the following is a function of the cardiac sphincter?

Accepted Answer

Prevents stomach contents from refluxing into the esophagus

Question 14

Which digestive disorder is characterized by binge eating followed by self-induced vomiting?

Accepted Answer

Bulimia

Question 15

Which of the following best describes the role of bacterial microbiota in the large intestine?

Accepted Answer

They ferment carbohydrates and synthesize vitamins

Question 16

Which pancreatic enzyme is responsible for the breakdown of proteins in the small intestine?

Accepted Answer

Trypsin

Question 17

A patient with vitamin B12 deficiency is most likely experiencing impaired absorption in which part of the digestive tract?

Accepted Answer

Small intestine (ileum)

Question 18

Which of the following is a symptom of peptic ulcer disease?

Accepted Answer

Burning stomach pain, especially when eating

Question 19

Which equation best represents the chemical breakdown of triglycerides by pancreatic lipase?

Accepted Answer

$$	ext{Triglyceride} + 	ext{Lipase} ightarrow 	ext{Fatty acids} + 	ext{Glycerol}$$

Question 20

Which of the following statements about the absorption of minerals is correct?

Accepted Answer

Minerals are absorbed directly through the walls of the small intestine into the blood

Study Guide: The Digestive System (Chapter 23) – Anatomy & Physiology

Study Guide - Practice Questions

Study Guide - Flashcards