Table of contents

1. Introduction to Anatomy & Physiology5h 43m
2. Cell Chemistry & Cell Components12h 36m
3. Energy & Cell Processes10h 6m
4. Tissues & Histology10h 3m
5. Integumentary System2h 20m
6. Bones & Skeletal Tissue2h 16m
7. The Skeletal System2h 35m
8. Joints2h 17m
9. Muscle Tissue2h 33m
10. Muscles1h 11m
11. Nervous Tissue and Nervous System1h 35m
12. The Central Nervous System1h 6m
- Introduction to the Central Nervous System
  18m
- The Cerebrum
  48m
13. The Peripheral Nervous System1h 26m
14. The Autonomic Nervous System1h 38m
15. The Special Senses2h 41m
16. The Endocrine System2h 48m
17. The Blood3h 22m
18. The Heart3h 42m
19. The Blood Vessels3h 35m
20. The Lymphatic System3h 16m
21. The Immune System14h 37m
22. The Respiratory System3h 20m
23. The Digestive System2h 5m
24. Metabolism and Nutrition4h 0m
25. The Urinary System2h 39m
26. Fluid and Electrolyte Balance, Acid Base Balance37m
27. The Reproductive System2h 5m
28. Human Development1h 21m
29. Heredity3h 32m

2. Cell Chemistry & Cell Components

Carbohydrates

Anatomy & Physiology

2. Cell Chemistry & Cell Components

Carbohydrates

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2:32 minutes

Problem 9

Textbook Question

Galactosemia is a potentially fatal disease that occurs in humans who lack the enzyme that converts galactose to glucose. If you were a physician treating a person with this disease, which of the following would you have them exclude from their diet?a. maltoseb. starchc. mannosed. lactose

Verified step by step guidance

Understand the condition: Galactosemia is a genetic disorder where the body cannot convert galactose into glucose due to the lack of the enzyme galactose-1-phosphate uridyltransferase.

Identify the source of galactose: Galactose is a sugar that is commonly found in lactose, which is a disaccharide composed of glucose and galactose.

Analyze the options: Consider which of the given options contains galactose. Lactose is the only sugar in the list that contains galactose.

Consider dietary implications: Since individuals with galactosemia cannot process galactose, they should avoid foods containing lactose to prevent the accumulation of galactose in the body.

Conclude the dietary recommendation: Advise the patient to exclude lactose from their diet to manage galactosemia effectively.

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Key Concepts

Here are the essential concepts you must grasp in order to answer the question correctly.

Galactosemia

Galactosemia is a genetic metabolic disorder characterized by the body's inability to properly metabolize galactose, a sugar found in milk and dairy products. This condition arises from a deficiency in the enzyme galactose-1-phosphate uridyltransferase, which is essential for converting galactose into glucose. Without treatment, galactose can accumulate in the body, leading to serious health complications.

Dietary Restrictions

Individuals with galactosemia must adhere to strict dietary restrictions to avoid foods that contain galactose. This includes eliminating lactose, which is a disaccharide sugar composed of glucose and galactose, primarily found in milk and dairy products. By avoiding lactose, patients can prevent the harmful effects of galactose accumulation and manage their condition effectively.

Enzymatic Function

Enzymatic function refers to the role of enzymes in facilitating biochemical reactions in the body. In the case of galactosemia, the lack of the enzyme responsible for converting galactose to glucose disrupts normal metabolic processes. Understanding how enzymes work and their specific functions is crucial for recognizing the implications of enzyme deficiencies and the dietary adjustments needed to manage metabolic disorders.