1. Introduction to Anatomy & Physiology5h 40m
2. Cell Chemistry & Cell Components12h 37m
3. Energy & Cell Processes10h 7m
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 Blood1h 22m
18. The Heart1h 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 Balance Coming soon
27. The Reproductive System2h 5m
28. Human Development1h 21m
29. Heredity Coming soon

2. Cell Chemistry & Cell Components

Mitochondria & Chloroplasts

Anatomy & Physiology

2. Cell Chemistry & Cell Components

Mitochondria & Chloroplasts

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2:35 minutes

Problem 11

Textbook Question

In which cell would you find the most mitochondria? a. pancreatic cell that secretes digestive enzymes b. ovarian cell that produces estrogen (a steroid hormone) c. muscle cell in the thigh of a long-distance runner d. white blood cell that engulfs bacteria

Verified step by step guidance

Identify the function of mitochondria: Mitochondria are known as the powerhouses of the cell, responsible for producing ATP through cellular respiration, which is crucial for energy-demanding processes.

Consider the energy requirements of each cell type: Cells with higher energy demands will typically have more mitochondria.

Analyze the pancreatic cell: It secretes digestive enzymes, which requires energy, but not as much as some other cell types.

Evaluate the ovarian cell: It produces estrogen, a process that involves steroid synthesis, which requires energy but is not the most energy-intensive process.

Examine the muscle cell: Muscle cells, especially in long-distance runners, require a significant amount of energy for sustained contraction and endurance activities, indicating a high number of mitochondria.

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Key Concepts

Here are the essential concepts you must grasp in order to answer the question correctly.

Mitochondrial Function

Mitochondria are known as the powerhouse of the cell, responsible for producing adenosine triphosphate (ATP) through cellular respiration. They play a crucial role in energy metabolism, particularly in cells that require high energy levels for their functions.

Cellular Energy Demand

Different cell types have varying energy demands based on their functions. For instance, muscle cells, especially in athletes, require significant energy for contraction and endurance, leading to a higher number of mitochondria compared to other cell types.

Cell Type Comparison

Understanding the specific functions of different cell types helps in predicting mitochondrial abundance. For example, pancreatic cells and ovarian cells have moderate energy needs, while muscle cells, particularly in active individuals, are adapted to have a greater number of mitochondria to meet their high energy requirements.