BIOL 180 Quiz 3 Questions and Answers: American Public University Latest Graded A.

Quiz 3 Part 1 of 6 - Chapter 3 24.0 Points Question 1 of 33 3.0 Points Which model best describes the observations and functions of the plasma membrane?  A. nuclear envelope  B. fluid mosaic model  C. cell membrane  D. phospholipid bilayer Feedback:The model describes the plasma membrane as a fluid combination of phospholipids, cholesterol, proteins, and carbohydrates. Review the cell membrane in Chapter 3. Question 2 of 33 3.0 Points A phospholipid bilayer with embedded proteins that separate internal contents of a cell from the surrounding environment is referred to as what?  A. cytoplasm B. cytoskeleton  C. plasma membrane  D. vacuole  E. lysosome Feedback:Great job. Question 3 of 33 3.0 Points Which structure carries out oxidation reactions that break down fatty acids and amino acids?  A. mitochondria  B. ribosomes