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

Which statement correctly describes the nuclear envelope?

It is a double membrane structure that separates the nucleus from the cytoplasm.

It is a rigid structure that provides mechanical support to the nucleus.

It consists of a single lipid bilayer that surrounds the nucleus.

It is permeable to all molecules, allowing free exchange between the nucleus and cytoplasm.

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Verified step by step guidance

Understand the function of the nuclear envelope: It serves as a barrier that separates the contents of the nucleus from the cytoplasm, maintaining the distinct environments necessary for cellular processes.

Recognize the structure of the nuclear envelope: It is composed of two lipid bilayer membranes, an inner and an outer membrane, making it a double membrane structure.

Consider the permeability of the nuclear envelope: It is selectively permeable, allowing certain molecules to pass through nuclear pores, but not freely permeable to all molecules.

Evaluate the mechanical properties: While the nuclear envelope provides some structural support, it is not primarily a rigid structure; its main role is to protect and compartmentalize the nucleus.

Compare the options: The correct description of the nuclear envelope is that it is a double membrane structure that separates the nucleus from the cytoplasm, aligning with its known structure and function.