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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 Heart2h 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

Atoms- Smallest Unit of Matter

Anatomy & Physiology

2. Cell Chemistry & Cell Components

Atoms- Smallest Unit of Matter

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Multiple Choice

Which of the following is a trace element?

Hydrogen

Oxygen

Nitrogen

Copper

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Verified step by step guidance

Understand the concept of trace elements: Trace elements are chemical elements required by living organisms in very small amounts for proper physiological functioning.

Identify the common trace elements in the human body: These typically include elements like iron, zinc, copper, manganese, iodine, and selenium.

Compare the options given in the problem: Hydrogen, oxygen, and nitrogen are major elements that are required in larger quantities for biological processes, whereas copper is needed in trace amounts.

Recognize that copper is a trace element: Copper plays a role in various enzymatic reactions and is essential for the functioning of the nervous system and the formation of connective tissue.

Conclude that copper is the correct answer: Based on the definition and examples of trace elements, copper fits the criteria of being required in small amounts for physiological functions.