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 primary difference between rough endoplasmic reticulum (ER) and smooth endoplasmic reticulum (ER)?

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.

Rough ER is responsible for detoxification, while smooth ER is responsible for energy production.

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

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Verified step by step guidance

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

Identify the two types of ER: rough endoplasmic reticulum (RER) and smooth endoplasmic reticulum (SER). The primary structural difference is that RER has ribosomes attached to its cytoplasmic surface, giving it a 'rough' appearance under a microscope.

Recognize the function of the rough ER. The presence of ribosomes on the rough ER is crucial for its role in protein synthesis. These ribosomes translate mRNA into polypeptide chains, which are then folded and modified within the ER.

Understand the function of the smooth ER. Unlike the rough ER, the smooth ER lacks ribosomes and is primarily involved in lipid synthesis, metabolism of carbohydrates, detoxification of drugs and poisons, and storage of calcium ions.

Conclude that the primary difference between rough ER and smooth ER is the presence of ribosomes on the rough ER, which are absent on the smooth ER, leading to their distinct roles in the cell.