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

Previous problemNext problem

Struggling with Anatomy & Physiology?

Join thousands of students who trust us to help them ace their exams!Watch the first video

Multiple Choice

Which of the following would not be a component of the plasma membrane?

Phospholipids

Nucleic acids

Cholesterol

Proteins

Previous problemNext problem

Verified step by step guidance

Understand the structure of the plasma membrane: The plasma membrane is primarily composed of a phospholipid bilayer, which provides a flexible matrix and creates a barrier to permeability.

Identify the components of the plasma membrane: The main components include phospholipids, cholesterol, and proteins. These components work together to maintain the structure and function of the membrane.

Phospholipids form the basic structure of the membrane: They have hydrophilic heads and hydrophobic tails, which arrange themselves into a bilayer, creating a semi-permeable membrane.

Cholesterol is interspersed within the phospholipid bilayer: It helps to stabilize the membrane's fluidity, making it less permeable to very small water-soluble molecules that might otherwise pass freely through.

Proteins are embedded within the phospholipid bilayer: They serve various functions such as transport, acting as receptors, and providing structural support. Nucleic acids, however, are not part of the plasma membrane structure; they are found within the cell nucleus and cytoplasm, involved in genetic information storage and transfer.