Table of contents

1. Overview of Cell Biology2h 49m
2. Chemical Components of Cells1h 14m
3. Energy1h 33m
4. DNA, Chromosomes, and Genomes2h 31m
5. DNA to RNA to Protein2h 31m
6. Proteins1h 36m
7. Gene Expression1h 42m
8. Membrane Structure1h 4m
- The Lipid Bilayer
  38m
- Membrane Proteins
  25m
9. Transport Across Membranes1h 52m
10. Anerobic Respiration1h 5m
11. Aerobic Respiration1h 11m
12. Photosynthesis52m
13. Intracellular Protein Transport2h 18m
14. Cell Signaling1h 28m
15. Cytoskeleton and Cell Movement1h 39m
16. Cell Division3h 5m
17. Meiosis and Sexual Reproduction50m
18. Cell Junctions and Tissues48m
19. Stem Cells13m
- Stem Cells
  13m
20. Cancer44m
21. The Immune System1h 6m
22. Techniques in Cell Biology1h 41m

1. Overview of Cell Biology

Eukaryotic Cell Architecture

Cell Biology

1. Overview of Cell Biology

Eukaryotic Cell Architecture

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Multiple Choice

The extracellular matrix is important because it does what?

Allows water to flow in and out of the cell

Attaches cells together and provides support for multicellular structures

Connects plant cells through a cytoplasmic bridge

Provides support to the plasma membrane from inside the cell

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Verified step by step guidance

Understand the role of the extracellular matrix (ECM) in multicellular organisms. The ECM is a complex network of proteins and carbohydrates that provides structural and biochemical support to surrounding cells.

Recognize that the ECM is primarily involved in providing structural support and anchoring cells together, which is crucial for the formation and maintenance of tissues and organs.

Differentiate between the functions of the ECM and other cellular structures. For example, the ECM is not responsible for allowing water to flow in and out of the cell; this is typically managed by the cell membrane and associated transport proteins.

Identify that the ECM does not connect plant cells through a cytoplasmic bridge. This function is performed by plasmodesmata in plant cells, which are channels that allow communication and transport between plant cells.

Conclude that the primary function of the ECM is to attach cells together and provide support for multicellular structures, making it essential for tissue integrity and function.