Chapter 5, Problem 3CAL

During a biology lab, Erin used a cotton swab to remove some tissue from the inner side of her cheek. She then placed the tissue on a slide to examine it under the microscope.

3. Why was the tissue able to be removed so easily without causing injury to the rest of Erin’s cheek?

1. a. The tissue contained abundant amounts of ground substance to keep the tissue puffy and relatively intact.
2. b. The tissue contained multiple layers of cells, so removing a few cells wouldn’t harm the rest of the tissue.
3. c. The tissue contained lots of blood vessels, so blood filled any gaps left when the original cells were removed.
4. d. The remaining cells were interconnected by intercalated discs, which formed a strong bond between the cells.