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

1. Introduction to Anatomy & Physiology

Levels of Organization

Anatomy & Physiology

1. Introduction to Anatomy & Physiology

Levels of Organization

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Multiple Choice

Which of the following belongs to the chemical level of body organization?

Organs

Atoms

Tissues

Organ systems

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Verified step by step guidance

Step 1: Understand the levels of body organization in Anatomy & Physiology. The body is organized into several hierarchical levels: chemical, cellular, tissue, organ, organ system, and organism levels.

Step 2: Focus on the chemical level. This level is the simplest and includes atoms and molecules, which are the building blocks of matter. Atoms combine to form molecules, such as water (H₂O) and proteins, which are essential for cellular function.

Step 3: Compare the options provided in the question. Organs, tissues, and organ systems belong to higher levels of organization (tissue level, organ level, and organ system level, respectively). These are composed of cells and molecules but are not part of the chemical level.

Step 4: Recognize that atoms are the fundamental units of matter and belong to the chemical level of organization. They form molecules, which are involved in biochemical processes within the body.

Step 5: Conclude that the correct answer is 'Atoms,' as they represent the chemical level of body organization, distinct from the higher levels like tissues, organs, and organ systems.