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

3. Energy & Cell Processes

Introduction to Energy

Anatomy & Physiology

3. Energy & Cell Processes

Introduction to Energy

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1:55 minutes

Problem 12

Textbook Question

Matter occupies space and has mass. Explain how energy must be described in terms of these two factors. Then define energy.

Verified step by step guidance

Step 1: Begin by explaining the concept of matter. Matter is anything that occupies space and has mass, meaning it has physical substance and can be measured in terms of volume and weight.

Step 2: Clarify that energy, unlike matter, does not occupy space and does not have mass. Energy is not a physical substance but rather a property or capacity that enables matter to perform work or undergo change.

Step 3: Describe how energy interacts with matter. Energy can be transferred to matter, causing changes in its state, motion, or structure. For example, thermal energy can increase the temperature of matter, and mechanical energy can move objects.

Step 4: Define energy. Energy is the capacity to do work or produce change. It exists in various forms, such as kinetic energy (energy of motion), potential energy (stored energy), chemical energy (energy stored in chemical bonds), and thermal energy (heat).

Step 5: Conclude by emphasizing the distinction between matter and energy. While matter occupies space and has mass, energy is a measurable property that influences matter but does not itself occupy space or have mass.

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Key Concepts

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

Mass

Mass is a fundamental property of matter that quantifies the amount of substance in an object. It is typically measured in kilograms or grams and is a measure of an object's resistance to acceleration when a force is applied. In the context of energy, mass is crucial because it relates to the energy content of matter, as described by Einstein's equation E=mc², which shows that mass can be converted into energy.

Space Occupation

Space occupation refers to the physical volume that matter occupies in three-dimensional space. This concept is essential for understanding energy because energy can influence the arrangement and movement of matter within that space. For example, when energy is added to a substance, it can change its state (solid, liquid, gas) and thus alter how it occupies space.

Energy Definition

Energy is defined as the capacity to do work or produce change. It exists in various forms, including kinetic, potential, thermal, and chemical energy, and can be transformed from one form to another. Understanding energy in relation to mass and space is vital, as it helps explain how energy interacts with matter, influencing its motion, structure, and state.

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