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 Heart2h 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

Endosymbiotic Theory

Anatomy & Physiology

2. Cell Chemistry & Cell Components

Endosymbiotic Theory

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Multiple Choice

According to the endosymbiotic theory, which of the following is likely the ancestor of the mitochondria?

Aerobic eukaryotes.

Aerobic bacteria.

Anaerobic bacteria.

Cyanobacteria.

Chloroplasts.

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Verified step by step guidance

Understand the endosymbiotic theory: This theory suggests that certain organelles within eukaryotic cells, such as mitochondria and chloroplasts, originated from free-living bacteria that were engulfed by ancestral eukaryotic cells.

Identify the function of mitochondria: Mitochondria are known for their role in aerobic respiration, which is the process of producing energy in the presence of oxygen.

Consider the characteristics of aerobic bacteria: Aerobic bacteria are capable of using oxygen to generate energy, similar to the function of mitochondria in eukaryotic cells.

Evaluate the options: Compare the characteristics of aerobic bacteria with those of mitochondria. Aerobic bacteria's ability to perform aerobic respiration aligns with the function of mitochondria.

Conclude the likely ancestor: Based on the endosymbiotic theory and the functional similarities, aerobic bacteria are considered the likely ancestors of mitochondria.