$\text{Non-carbohydrate precursors} \rightarrow \text{Glucose}$

$\text{Glycogen} \rightarrow \text{Glucose}$

Question 1

Which of the following best describes the process of chemical digestion in the human body?

Accepted Answer

The breakdown of food molecules by enzymes and acids into smaller components.

Question 2

A patient is experiencing heartburn due to acid reflux. Which physiological mechanism is most likely malfunctioning?

Accepted Answer

The lower esophageal sphincter is not closing properly.

Question 3

Which hormone is produced by the pancreas and is responsible for lowering blood glucose levels?

Accepted Answer

Insulin

Question 4

What is the primary function of bile in digestion?

Accepted Answer

To emulsify fats, increasing their surface area for enzyme action.

Question 5

Which of the following equations correctly represents the process of gluconeogenesis?

Accepted Answer

$	ext{Non-carbohydrate precursors} ightarrow 	ext{Glucose}$

Question 6

A person consumes a meal high in carbohydrates. Which process will be most active in their liver immediately after the meal?

Accepted Answer

Glycogenesis

Question 7

Which of the following is a health benefit specifically associated with fermentable fiber?

Accepted Answer

It is fermented by gut bacteria, producing short-chain fatty acids that support colon health.

Question 8

Which nutrient is absorbed primarily in the large intestine?

Accepted Answer

Water

Question 9

A patient with lactose intolerance lacks which enzyme, and what is the consequence?

Accepted Answer

Lactase; undigested lactose leads to gastrointestinal symptoms

Question 10

Which of the following best explains why glucose is important to the human body?

Accepted Answer

It is the primary source of energy for red blood cells and the brain.

Question 11

Which of the following is a correct description of the process of absorption in the small intestine?

Accepted Answer

Nutrients pass from the lumen of the intestine into the blood or lymph.

Question 12

A patient is diagnosed with Type 1 diabetes. Which of the following best describes the underlying cause?

Accepted Answer

Autoimmune destruction of pancreatic beta cells leading to insufficient insulin production.

Question 13

Which of the following is a monosaccharide commonly found in the human diet?

Accepted Answer

Glucose

Question 14

Which equation correctly represents the process of glycogenolysis?

Accepted Answer

$	ext{Glycogen} ightarrow 	ext{Glucose}$

Question 15

Which of the following is a recommended strategy for controlling or preventing diabetes?

Accepted Answer

Increasing physical activity and maintaining a healthy weight.

Question 16

Which of the following statements about soluble fiber is correct?

Accepted Answer

It dissolves in water and can help lower blood cholesterol.

Question 17

A patient has gallstones. Which of the following is most likely to be affected?

Accepted Answer

Fat digestion in the small intestine.

Question 18

Which of the following best describes the difference between whole grains and refined grains?

Accepted Answer

Whole grains contain all parts of the grain kernel, while refined grains have the bran and germ removed.

Question 19

Which of the following is a correct description of the action of glucagon in the body?

Accepted Answer

It stimulates the conversion of glycogen to glucose in the liver.

Question 20

A patient is unable to absorb fat-soluble vitamins efficiently. Which part of their digestive system is most likely impaired?

Accepted Answer

Small intestine

Digestion, Absorption, and Carbohydrate Metabolism: Study Guide for Nutrition

Study Guide - Practice Questions