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

Overview of Tissue Structures

Cell Biology

1. Overview of Cell Biology

Overview of Tissue Structures

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Multiple Choice

Which statement best explains how the different cell types in a tissue are formed?

They are formed by the fusion of unrelated cells from different tissues.

They arise from a common progenitor cell through the process of differentiation.

Each cell type is inherited directly from the parent organism without any changes.

They are randomly generated during cell division without any regulation.

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Verified step by step guidance

Understand the concept of cell differentiation: Differentiation is the process by which a less specialized cell becomes a more specialized cell type. This is crucial for forming the various cell types in a tissue.

Recognize that all cells in a tissue typically originate from a common progenitor cell, such as a stem cell, which has the potential to differentiate into multiple specialized cell types.

Eliminate incorrect options: Cells are not formed by the fusion of unrelated cells from different tissues, as this is not a mechanism of tissue formation. Similarly, cells are not inherited directly from the parent organism without changes, as differentiation involves changes in gene expression. Lastly, cell types are not randomly generated during cell division; the process is highly regulated.

Focus on the correct explanation: Differentiation is regulated by specific signals, such as transcription factors and signaling molecules, which guide the progenitor cell to develop into a specific cell type.

Conclude that the correct statement is: 'They arise from a common progenitor cell through the process of differentiation,' as this aligns with the biological understanding of tissue formation.