Q: Which equation best represents the process of ATP generation in cells after oxygen is delivered?

$$ \text{C}_6\text{H}_{12}\text{O}_6 + 6\text{O}_2 \rightarrow 6\text{CO}_2 + 6\text{H}_2\text{O} + \text{ATP} $$

Question 1

Which of the following best describes the role of hemoglobin (Hb) in external respiration?

Accepted Answer

Hemoglobin binds oxygen in lung capillaries after oxygen diffuses from alveoli.

Question 2

A patient with gallstones blocking the cystic duct is most likely to experience impaired digestion of which macronutrient in the small intestine?

Accepted Answer

Fats/Lipids

Question 3

Which equation best represents the process of ATP generation in cells after oxygen is delivered?

Accepted Answer

$$ 	ext{C}_6	ext{H}_{12}	ext{O}_6 + 6	ext{O}_2 ightarrow 6	ext{CO}_2 + 6	ext{H}_2	ext{O} + 	ext{ATP} $$

Question 4

Which digestive enzyme is produced by the pancreas and is responsible for breaking down starches in the small intestine?

Accepted Answer

Amylase

Question 5

If the hepatopancreatic sphincter (Sphincter of Oddi) fails to open, which of the following will most likely occur?

Accepted Answer

Bile and pancreatic enzymes will not enter the small intestine, impairing digestion of fats, starches, and proteins.

Question 6

During internal respiration, which direction do oxygen and carbon dioxide move?

Accepted Answer

Oxygen moves from blood to cells; carbon dioxide moves from cells to blood.

Question 7

Which of the following best explains why bile is necessary for efficient fat digestion in the small intestine?

Accepted Answer

Bile emulsifies fats, increasing their surface area for lipase action.

Question 8

A patient with impaired pancreatic acini cell function would most likely have difficulty digesting which combination of nutrients?

Accepted Answer

Fats, starches, and proteins

Question 9

Which of the following is the correct sequence for the transport of oxygen from the lungs to the tissues?

Accepted Answer

Oxygen diffuses into alveoli, binds to hemoglobin in RBCs, travels through arteries, and is released to tissues.

Question 10

Which of the following would most likely result from a blockage in the common bile duct?

Accepted Answer

Impaired digestion of fats due to lack of bile in the small intestine.

Question 11

Which process is directly responsible for the removal of carbon dioxide from the body?

Accepted Answer

External respiration in the lungs

Question 12

If a person’s pancreatic duct is blocked, which of the following would be most affected?

Accepted Answer

Release of pancreatic enzymes into the small intestine

Question 13

Which of the following best describes the relationship between the liver, gallbladder, and pancreas in digestion?

Accepted Answer

The liver produces bile, the gallbladder stores and releases it, and the pancreas produces digestive enzymes; all contribute to digestion in the small intestine.

Question 14

Which of the following is a consequence of impaired hemoglobin function in red blood cells?

Accepted Answer

Reduced oxygen transport to tissues, leading to decreased ATP production.

Question 15

A patient is diagnosed with a deficiency in pancreatic proteases. Which of the following is most likely to occur?

Accepted Answer

Impaired digestion of proteins in the small intestine.

Question 16

Which of the following best describes the function of the hepatopancreatic sphincter (Sphincter of Oddi)?

Accepted Answer

It regulates the flow of bile and pancreatic juices into the small intestine.

Question 17

Which of the following scenarios would most likely result in impaired digestion of all major macronutrients in the small intestine?

Accepted Answer

Blockage of the hepatopancreatic sphincter (Sphincter of Oddi)

Question 18

Which of the following is NOT a function of hemoglobin in the blood?

Accepted Answer

Digesting fats in the small intestine

Question 19

Which of the following best explains why the small intestine is dependent on the liver, gallbladder, and pancreas?

Accepted Answer

They provide bile and digestive enzymes necessary for the breakdown and absorption of nutrients.

Question 20

Which of the following would most likely occur if bile is not released into the small intestine?

Accepted Answer

Fat digestion would be impaired due to lack of emulsification.

Hemoglobin in Respiration and Functional Relationships in the Digestive System

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