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

Endomembrane System: Protein Secretion

Anatomy & Physiology

2. Cell Chemistry & Cell Components

Endomembrane System: Protein Secretion

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Multiple Choice

What is the structural difference between rough endoplasmic reticulum (ER) and smooth ER?

Rough ER has ribosomes attached to its surface, while smooth ER does not.

Rough ER is located near the cell membrane, while smooth ER is located near the nucleus.

Rough ER is found only in animal cells, while smooth ER is found only in plant cells.

Rough ER is involved in lipid synthesis, while smooth ER is involved in protein synthesis.

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Verified step by step guidance

Begin by understanding the basic structure and function of the endoplasmic reticulum (ER), which is an essential organelle in eukaryotic cells involved in the synthesis and transport of proteins and lipids.

Identify the rough endoplasmic reticulum (RER) by its characteristic feature: the presence of ribosomes attached to its cytoplasmic surface, giving it a 'rough' appearance under a microscope.

Contrast this with the smooth endoplasmic reticulum (SER), which lacks ribosomes on its surface, resulting in a 'smooth' appearance.

Clarify the functional differences: Rough ER is primarily involved in the synthesis of proteins, especially those destined for secretion or for use in the cell membrane, due to the presence of ribosomes. Smooth ER, on the other hand, is involved in lipid synthesis and metabolism, detoxification processes, and calcium ion storage.

Correct any misconceptions: Both rough and smooth ER are found in both plant and animal cells, and their location within the cell is not strictly near the cell membrane or nucleus. Rough ER is typically located near the nucleus and the Golgi apparatus, facilitating the transport of synthesized proteins.