Q: Which of the following equations correctly represents the breakdown of triglycerides during digestion?

$$\text{Triglyceride} \rightarrow \text{Glycerol} + 3\ \text{Fatty Acids}$$

Question 1

Which of the following best describes the primary function of bile produced by the liver?

Accepted Answer

Emulsification of fats to aid in their digestion and absorption

Question 2

A patient presents with gray-white, fatty streaked stool. Which organ is most likely malfunctioning, and what is the underlying cause?

Accepted Answer

Gallbladder; lack of bile release into the intestine

Question 3

Which structure controls the release of bile and pancreatic juice into the duodenum?

Accepted Answer

Hepatopancreatic sphincter

Question 4

Which of the following is NOT a function of the liver?

Accepted Answer

Secretion of digestive enzymes into the duodenum

Question 5

A patient with a history of intravenous drug use develops chronic hepatitis. Which type of hepatitis is most likely, and what is a major long-term risk?

Accepted Answer

Hepatitis C; increased risk of liver cancer

Question 6

Which of the following best explains why gallstones are more common in individuals with a high-cholesterol diet?

Accepted Answer

Excess cholesterol can crystallize if there is too little bile salt, forming biliary calculi

Question 7

Which of the following equations correctly represents the breakdown of triglycerides during digestion?

Accepted Answer

$$	ext{Triglyceride} ightarrow 	ext{Glycerol} + 3\ 	ext{Fatty Acids}$$

Question 8

Which anatomical feature of the small intestine is primarily responsible for increasing surface area to maximize nutrient absorption?

Accepted Answer

Villi and microvilli

Question 9

A patient with cirrhosis has impaired removal of ammonia from the blood. Which liver function is most directly compromised?

Accepted Answer

Detoxification of metabolic wastes

Question 10

Which hormone stimulates the gallbladder to contract and release bile in response to fatty acids in the duodenum?

Accepted Answer

Cholecystokinin (CCK)

Question 11

Which of the following best describes the path of bile from the liver to the duodenum?

Accepted Answer

Right and left hepatic ducts → common hepatic duct → cystic duct → common bile duct → duodenum

Question 12

Which of the following is a major function of the bacterial flora in the large intestine?

Accepted Answer

Fermentation of undigested carbohydrates and synthesis of vitamins B and K

Question 13

A patient with lactose intolerance experiences diarrhea after consuming milk. Which physiological process best explains this symptom?

Accepted Answer

Undigested lactose increases osmotic pressure in the colon, drawing water into the lumen

Question 14

Which of the following best describes the role of the hepatic portal vein?

Accepted Answer

It carries nutrient-rich blood from the gastrointestinal tract to the liver for processing

Question 15

Which of the following equations correctly represents the breakdown of proteins during digestion?

Accepted Answer

$$	ext{Protein} ightarrow 	ext{Amino Acids}$$

Question 16

Which of the following is a consequence of excessive water reabsorption in the large intestine?

Accepted Answer

Constipation

Question 17

Which of the following best explains why the jejunum is the primary site for nutrient absorption?

Accepted Answer

It has the greatest density of villi and microvilli, maximizing surface area for absorption

Question 18

Which of the following is a correct statement about the microscopic anatomy of the liver?

Accepted Answer

Hepatic lobules are hexagonal structures with a central vein surrounded by plates of hepatocytes

Question 19

Which of the following best describes the function of pancreatic acinar cells?

Accepted Answer

They secrete digestive enzymes such as proteases, amylases, lipases, and nucleases

Question 20

Which of the following is a risk factor for colon cancer?

Accepted Answer

Low fiber, high fat diet

Liver, Gallbladder, and Pancreas: Structure and Function in Digestion

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