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

Biological Membranes

Anatomy & Physiology

2. Cell Chemistry & Cell Components

Biological Membranes

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Multiple Choice

Which of the following molecules are the major component of the plasma membrane?

Proteins

Carbohydrates

Phospholipids

Nucleic acids

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Verified step by step guidance

Understand the structure of the plasma membrane: The plasma membrane is primarily composed of a bilayer of phospholipids, which provides the fundamental structure and barrier function.

Identify the role of phospholipids: Phospholipids have hydrophilic (water-attracting) heads and hydrophobic (water-repelling) tails, allowing them to form a bilayer that separates the internal cell environment from the external environment.

Recognize the function of proteins in the membrane: While proteins are crucial for various functions such as transport and signaling, they are embedded within the phospholipid bilayer rather than being the main structural component.

Consider the role of carbohydrates: Carbohydrates are attached to proteins and lipids on the extracellular surface of the membrane, playing a role in cell recognition and signaling, but not as a major structural component.

Exclude nucleic acids: Nucleic acids are not part of the plasma membrane structure; they are primarily involved in genetic information storage and transfer within the cell.