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

22. The Respiratory System

Introduction to Lung Physiology

Anatomy & Physiology

22. The Respiratory System

Introduction to Lung Physiology

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Problem 14b

Textbook Question

Mark the following statements as true or false. If a statement is false, correct it to make a true statement.
Each Hb protein can carry up to four oxygen molecules.

Verified step by step guidance

Step 1: Understand the structure of hemoglobin (Hb). Hemoglobin is a protein found in red blood cells that is responsible for transporting oxygen. It consists of four subunits, each containing a heme group capable of binding one oxygen molecule.

Step 2: Analyze the statement provided. The statement claims that each Hb protein can carry up to four oxygen molecules. Based on the structure of hemoglobin, this is correct because each of the four heme groups can bind one oxygen molecule.

Step 3: Confirm the accuracy of the statement. Since hemoglobin has four heme groups and each can bind one oxygen molecule, the statement 'Each Hb protein can carry up to four oxygen molecules' is true.

Step 4: If the statement were false, you would need to correct it. For example, if the statement incorrectly claimed that Hb can carry more or fewer than four oxygen molecules, you would revise it to reflect the correct number based on hemoglobin's structure.

Step 5: Conclude that the statement is true and does not require correction. Hemoglobin's ability to carry up to four oxygen molecules is a fundamental concept in understanding oxygen transport in the blood.

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Key Concepts

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

Hemoglobin Structure

Hemoglobin (Hb) is a protein found in red blood cells responsible for transporting oxygen. It consists of four subunits, each containing a heme group that can bind one oxygen molecule. This quaternary structure allows hemoglobin to effectively pick up oxygen in the lungs and release it in tissues.

Oxygen Binding Capacity

The oxygen binding capacity of hemoglobin refers to its ability to carry oxygen molecules. Each hemoglobin molecule can bind up to four oxygen molecules due to its four heme groups. This property is crucial for efficient oxygen transport throughout the body, ensuring that tissues receive adequate oxygen for metabolism.

True/False Statements in Science

In scientific contexts, true/false statements are used to assess understanding of factual information. A true statement accurately reflects established scientific knowledge, while a false statement requires correction to align with scientific facts. This exercise helps reinforce learning and comprehension of key concepts.

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Mark the following statements as true or false. If a statement is false, correct it to make a true statement.

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Mark the following statements as true or false. If a statement is false, correct it to make a true statement.

Oxygen is transported primarily by dissolving in the plasma.

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Textbook Question

Mark the following statements as true or false. If a statement is false, correct it to make a true statement.

Hb in arterial blood is normally almost fully saturated.

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Mark the following statements as true or false. If a statement is false, correct it to make a true statement.

When the PO₂ of arterial blood drops slightly, the percent saturation of Hb drops dramatically.

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Mark the following statements as true or false. If a statement is false, correct it to make a true statement.

Increased P_CO2, temperature, and hydrogen ion concentration all increase Hb's affinity for oxygen.

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Multiple Choice

The exchange of gases between blood and the air in the lungs is known as:

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Mark the following statements as true or false. If a statement is false, correct it to make a true statement.Each Hb protein can carry up to four oxygen molecules.

Key Concepts

Hemoglobin Structure

Oxygen Binding Capacity

True/False Statements in Science

Watch next

Mark the following statements as true or false. If a statement is false, correct it to make a true statement.
Each Hb protein can carry up to four oxygen molecules.