University:
The Pennsylvania State University
Course:
BIOL 230W | Cellular Biology
Academic year:

2024
Views:

153

Pages:

1
Author:

jaxbrokenhart4z4x

Question 1 Which of the following statements are correct regarding cell walls? 1. The cell wall confers protection against external environmental stimuli. 2. The cell wall is an evolutionary remnant and now has little functional significance in most bacteria. 3. The cell wall is made up primarily of glucose Answer 3 is incorrect. While some bacteria may have cell walls primarily composed of glucose, the cell wall of most bacteria is made up of a combination of various molecules, including peptidoglycan, lipoproteins, glycolipids, and lipopolysaccharides. Question 2 Which of the following statements are correct regarding cell walls? 1. The cell wall confers protection against external environmental stimuli. 2. The cell wall is an evolutionary remnant and now has little functional significance in most bacteria. 3. The cell wall is made up primarily of glucose Answer 2, however, is not entirely accurate. While it is true that the cell wall is an evolutionary remnant, it still maintains significant functional significance in most bacteria. For prokaryotic cells, the cell wall is essential for maintaining cell shape and integrity, and also plays a crucial role in regulating cell growth and division. Question 3 A tubal ligation is a permanent sterilization procedure in which a woman's fallopian tubes are blocked or severed. Which of the following explains how this process can be used to prevent pregnancies? Answer Tubal ligation, also known as "having your tubes tied," is a form of permanent birth control for women. It is a surgical procedure in which the fallopian tubes, which carry the egg from the ovary to the uterus, are either blocked or cut, preventing eggs from reaching the uterus and therefore preventing pregnancy.