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 organelles protects the contents of the nucleus?

Nuclear envelope

Endoplasmic reticulum

Mitochondria

Golgi apparatus

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Verified step by step guidance

Begin by identifying the function of each organelle listed in the options. Understanding their roles will help determine which one is responsible for protecting the nucleus.

The nuclear envelope is a double membrane structure that surrounds the nucleus. It serves as a barrier, protecting the contents of the nucleus from the cytoplasm and regulating the passage of molecules in and out of the nucleus.

The endoplasmic reticulum is involved in protein and lipid synthesis and does not directly protect the nucleus.

Mitochondria are the powerhouses of the cell, responsible for energy production, and do not have a role in protecting the nucleus.

The Golgi apparatus is involved in modifying, sorting, and packaging proteins and lipids for secretion or use within the cell, and does not protect the nucleus.