Test Bank For Fundamentals Of Anatomy And Physiology 9th Edition By Frederic-H

Chapter 3 The Cellular Level of Organization

Multiple-Choice Questions

1) The smallest living unit within the human body is
A) a protein.
B) the cell.
C) a tissue.
D) an organ.
E) an organ system.
Answer: B
Learning Outcome: 3-1
Bloom’s Taxonomy: Knowledge

2) Which of the following terms is not used to define the structure that separates the contents of a human cell from its surrounding medium?
A) cell wall
B) cell membrane
C) plasma membrane
D) plasmalemma
E) both a cell wall and a plasmalemma
Answer: A
Learning Outcome: 3-1
Bloom’s Taxonomy: Knowledge

3) Functions of the plasmalemma include all of the following, except
A) separation of the cytoplasm from the extracellular fluid.
B) regulation of exchange of materials with the extracellular environment.
C) sensitivity to chemical changes in the extracellular fluid.
D) thermal insulation.
E) structural support.
Answer: D
Learning Outcome: 3-1
Bloom’s Taxonomy: Knowledge

4) The plasma membrane is composed of
A) a bilayer of proteins.
B) a bilayer of phospholipids.
C) carbohydrate molecules.
D) carbohydrates and proteins.
E) carbohydrates and lipids.
Answer: B
Learning Outcome: 3-1
Bloom’s Taxonomy: Knowledge