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 smooth endoplasmic reticulum (ER) and rough endoplasmic reticulum (ER) in eukaryotic cells?

Smooth ER is involved in protein synthesis, while rough ER is involved in lipid synthesis.

Smooth ER lacks ribosomes on its surface, while rough ER has ribosomes attached to its surface.

Smooth ER is responsible for DNA replication, while rough ER is responsible for RNA transcription.

Smooth ER is found only in plant cells, while rough ER is found only in animal cells.

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Verified step by step guidance

Understand the structure and function of the endoplasmic reticulum (ER) in eukaryotic cells. The ER is a network of membranes within the cell that plays a crucial role in the synthesis and transport of proteins and lipids.

Differentiate between the two types of ER: smooth ER and rough ER. The primary structural difference is the presence or absence of ribosomes on their surfaces.

Recognize that rough ER has ribosomes attached to its surface, which gives it a 'rough' appearance under a microscope. These ribosomes are sites of protein synthesis, making rough ER integral to the production of proteins.

Identify the smooth ER, which lacks ribosomes on its surface, giving it a 'smooth' appearance. Smooth ER is involved in lipid synthesis, detoxification processes, and calcium ion storage, among other functions.

Clarify misconceptions: Smooth ER is not involved in protein synthesis, nor is it responsible for DNA replication. Both smooth and rough ER are found in various eukaryotic cells, not limited to plant or animal cells.