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 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

Carbon

Anatomy & Physiology

2. Cell Chemistry & Cell Components

Carbon

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Multiple Choice

Organic molecules are defined as chemical compounds that contain:
a) Carbon.
b) Carbon & Oxygen.
c) Carbon & Nitrogen.
d) Carbon & Hydrogen.

Carbon.

Carbon & Oxygen.

Carbon & Nitrogen.

Carbon & Hydrogen.

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Verified step by step guidance

Understand the definition of organic molecules: Organic molecules are primarily composed of carbon atoms bonded to hydrogen atoms. This is a fundamental characteristic that distinguishes them from inorganic molecules.

Recognize the importance of carbon: Carbon is a versatile element that can form four covalent bonds, allowing it to create complex and diverse molecular structures, which is a key feature of organic compounds.

Identify the role of hydrogen: In organic chemistry, hydrogen is almost always present alongside carbon. The carbon-hydrogen bond is a defining feature of organic molecules.

Consider other elements: While organic molecules may also contain other elements such as oxygen, nitrogen, sulfur, and phosphorus, the presence of carbon and hydrogen is essential for a compound to be classified as organic.

Conclude with the correct definition: Based on the characteristics of organic molecules, the correct answer is that they contain carbon and hydrogen.