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

Which of the following statements about the endoplasmic reticulum (ER) is false?

The ER is directly involved in the packaging of proteins into vesicles for secretion.

The rough ER is involved in protein synthesis.

The smooth ER is responsible for lipid synthesis.

The ER is responsible for the synthesis of nucleic acids.

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Verified step by step guidance

Understand the role of the endoplasmic reticulum (ER) in the cell. The ER is a network of membranes involved in various cellular processes, including protein and lipid synthesis.

Differentiate between the rough ER and smooth ER. The rough ER is studded with ribosomes and primarily involved in protein synthesis, while the smooth ER lacks ribosomes and is involved in lipid synthesis and detoxification processes.

Evaluate the statement about the ER being directly involved in the packaging of proteins into vesicles for secretion. The ER works closely with the Golgi apparatus to package proteins, but the primary packaging occurs in the Golgi apparatus.

Consider the statement about the ER being responsible for the synthesis of nucleic acids. Nucleic acids, such as DNA and RNA, are synthesized in the nucleus, not the ER.

Identify the false statement by comparing each statement with the known functions of the ER. The false statement is the one claiming the ER is responsible for the synthesis of nucleic acids, as this is not a function of the ER.