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

Previous problemNext problem

Problem 2

Textbook Question

The three main components of a cell are the , the, and the__.

Verified step by step guidance

Step 1: Understand that the question is asking about the three main structural components of a cell, which are fundamental to its function in Anatomy & Physiology.

Step 2: Recall that the first main component of a cell is the plasma membrane, which acts as a selective barrier, controlling the movement of substances in and out of the cell.

Step 3: Identify the second main component as the cytoplasm, which includes the cytosol (fluid) and organelles, where most cellular activities occur.

Step 4: Recognize the third main component as the nucleus, which houses the cell's genetic material (DNA) and controls cellular activities.

Step 5: Combine these components to complete the answer: plasma membrane, cytoplasm, and nucleus.

Verified video answer for a similar problem:

This video solution was recommended by our tutors as helpful for the problem above

Play a video:

Was this helpful?

Key Concepts

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

Cell Membrane

The cell membrane is a protective barrier that surrounds the cell, controlling the movement of substances in and out. It is composed of a phospholipid bilayer with embedded proteins, which facilitate communication and transport. This structure is crucial for maintaining homeostasis and allowing the cell to interact with its environment.

Cytoplasm

Cytoplasm is the gel-like substance within the cell membrane, excluding the nucleus. It contains organelles, enzymes, and various molecules necessary for cellular processes. The cytoplasm plays a vital role in supporting cell structure and facilitating biochemical reactions essential for life.

Nucleus

The nucleus is often referred to as the control center of the cell, housing the cell's genetic material (DNA). It regulates gene expression and mediates the replication of DNA during the cell cycle. The nucleus is essential for cell growth, metabolism, and reproduction, making it a key component of eukaryotic cells.