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

Introduction to Eukaryotic Organelles

Anatomy & Physiology

2. Cell Chemistry & Cell Components

Introduction to Eukaryotic Organelles

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Multiple Choice

The nuclear envelope is composed of which of the following?

A triple lipid bilayer

A single layer of proteins

A double lipid bilayer

A single lipid bilayer

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Verified step by step guidance

Understand the structure of the nuclear envelope: The nuclear envelope is a critical component of eukaryotic cells, separating the nucleus from the cytoplasm.

Recognize the composition of the nuclear envelope: It consists of two lipid bilayers, known as the inner and outer nuclear membranes.

Identify the function of the lipid bilayers: These bilayers provide a barrier to protect the genetic material inside the nucleus and regulate the exchange of substances between the nucleus and cytoplasm.

Clarify the role of nuclear pores: Embedded within the nuclear envelope are nuclear pores, which allow the transport of molecules across the envelope.

Conclude with the correct answer: The nuclear envelope is composed of a double lipid bilayer, not a triple lipid bilayer or a single layer of proteins.