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

The functions of the rough endoplasmic reticulum include which of the following?

Storage of calcium ions

Synthesis of lipids and steroids

Detoxification of drugs and poisons

Synthesis of proteins destined for secretion

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Verified step by step guidance

Begin by understanding the structure of the rough endoplasmic reticulum (RER). It is characterized by the presence of ribosomes on its surface, which gives it a 'rough' appearance under a microscope.

Recognize the primary function of ribosomes, which is to synthesize proteins. The presence of ribosomes on the RER indicates its role in protein synthesis.

Differentiate between the functions of the rough and smooth endoplasmic reticulum. The smooth endoplasmic reticulum (SER) is involved in lipid synthesis, detoxification, and calcium ion storage, whereas the RER is primarily involved in protein synthesis.

Identify the specific role of the RER in the synthesis of proteins destined for secretion. Proteins synthesized by the RER are often transported to the Golgi apparatus for further processing and eventual secretion outside the cell.

Conclude that the rough endoplasmic reticulum is not involved in the storage of calcium ions, synthesis of lipids and steroids, or detoxification of drugs and poisons. These functions are associated with the smooth endoplasmic reticulum.