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

Introduction to Membrane Transport

Anatomy & Physiology

2. Cell Chemistry & Cell Components

Introduction to Membrane Transport

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Multiple Choice

Which of the following statements concerning the production of envelope proteins is true?

Envelope proteins are synthesized in the Golgi apparatus and then transported to the rough endoplasmic reticulum for packaging.

Envelope proteins are synthesized in the smooth endoplasmic reticulum and directly secreted out of the cell.

Envelope proteins are synthesized in the rough endoplasmic reticulum and then transported to the Golgi apparatus for further modification.

Envelope proteins are synthesized in the cytosol and then transported to the Golgi apparatus.

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Verified step by step guidance

Understand the role of the rough endoplasmic reticulum (RER) in protein synthesis. The RER is studded with ribosomes, which are the sites of protein synthesis. Proteins destined for secretion or for use in the cell membrane are typically synthesized here.

Recognize the function of the Golgi apparatus in protein processing. After synthesis in the RER, proteins are transported to the Golgi apparatus, where they undergo further modifications, such as glycosylation, and are sorted for transport to their final destinations.

Consider the role of the smooth endoplasmic reticulum (SER). The SER is involved in lipid synthesis and detoxification processes, but it is not primarily responsible for the synthesis of proteins, especially envelope proteins.

Evaluate the statement about protein synthesis in the cytosol. While some proteins are synthesized in the cytosol, envelope proteins, which are typically membrane-bound, are synthesized in the RER to facilitate their integration into membranes.

Conclude that the correct statement is: 'Envelope proteins are synthesized in the rough endoplasmic reticulum and then transported to the Golgi apparatus for further modification.' This reflects the typical pathway for the synthesis and processing of membrane-bound and secretory proteins.