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

Prokaryotic & Eukaryotic Cells

Anatomy & Physiology

2. Cell Chemistry & Cell Components

Prokaryotic & Eukaryotic Cells

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1:39 minutes

Problem 11

Textbook Question

List the four basic concepts that make up the cell theory.

Verified step by step guidance

Understand that cell theory is a fundamental principle in biology that explains the properties and functions of cells, which are the basic units of life.

Learn the first concept: All living organisms are composed of one or more cells. This emphasizes that cells are the building blocks of life.

Learn the second concept: The cell is the basic unit of structure and function in living organisms. This means that all biological processes occur within cells.

Learn the third concept: All cells arise from pre-existing cells. This highlights the continuity of life and the process of cell division.

Learn the fourth concept: Cells contain hereditary information (DNA) that is passed from one generation to the next during cell division.

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Key Concepts

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

All living organisms are composed of cells

This concept states that all forms of life, from the simplest bacteria to complex multicellular organisms, are made up of one or more cells. Cells are the fundamental units of structure and function in living things, highlighting the importance of cellular organization in biology.

The cell is the basic unit of life

This principle emphasizes that the cell is the smallest unit capable of performing all life processes. It serves as the building block for all living organisms, indicating that cellular functions are essential for the maintenance of life.

All cells arise from pre-existing cells

This concept asserts that new cells are produced only by the division of existing cells. This principle underscores the continuity of life and the process of cell division, which is crucial for growth, repair, and reproduction in living organisms.