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: Digestive Organelles

Anatomy & Physiology

2. Cell Chemistry & Cell Components

Endomembrane System: Digestive Organelles

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Multiple Choice

Which of the following sequences represents the order in which a protein made in the rough endoplasmic reticulum might move through the endomembrane system?

Lysosome → plasma membrane

Golgi apparatus → mitochondria

Plasma membrane → nuclear envelope

Nuclear envelope → lysosome

Golgi apparatus → lysosome

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Verified step by step guidance

Begin by understanding the role of the rough endoplasmic reticulum (ER) in protein synthesis. Proteins are synthesized by ribosomes attached to the rough ER, where they enter the ER lumen for folding and modification.

Next, recognize that proteins synthesized in the rough ER are typically transported to the Golgi apparatus. The Golgi apparatus is responsible for further modifying, sorting, and packaging proteins for their specific destinations.

After processing in the Golgi apparatus, proteins can be directed to various locations within the cell. One common destination is the lysosome, an organelle involved in digestion and waste processing.

Understand that the endomembrane system is a series of interconnected structures within the cell, including the ER, Golgi apparatus, lysosomes, and the plasma membrane, which work together to transport proteins and other molecules.

Finally, identify the correct sequence for the movement of a protein through the endomembrane system: from the Golgi apparatus to the lysosome, as this pathway is involved in targeting proteins for degradation or recycling within the cell.