1) Who was the first person to describe living single cells?
a) Leeuwenhoek
b) Hooke
c) Schleiden
d) Schwann
e) Virchow Answer: a
Difficulty:
... [Show More] Easy
Learning Objective: LO 1.1 Discuss the major discoveries of cell theory. Section Reference: Section 1.1 The Discovery of Cells
2) The first compound light microscopes were constructed by the end of the sixteenth century. What is a compound microscope?
a) It has a moveable stage.
b) It has two lenses.
c) Its lens is double the size of the original microscopes.
d) The lens has two different colors.
e) They have two different light sources.
Answer: b Difficulty: Easy
Learning Objective: LO 1.1 Discuss the major discoveries of cell theory. Section Reference: Section 1.1 The Discovery of Cells
3) Which of the following is a tenet of the Cell Theory?
1) All organisms are composed of one or more cells.
2) The cell is the structural unit of life.
3) Cells can arise only by division from a preexisting cell.
4) Cells divide only by fission.
a) 1
b) 2
Page 1
c) 3
d) 4
e) 1, 2 and 3
Answer: e Difficulty: Medium
Learning Objective: LO 1.1 Discuss the major discoveries of cell theory. Section Reference: Section 1.1 The Discovery of Cells
4) Who is generally credited with the discovery of cells?
a) Leeuwenhoek
b) Hooke
c) Schleiden
d) Schwann
e) Virchow Answer: b
Difficulty: Easy
Learning Objective: LO 1.1 Discuss the major discoveries of cell theory. Section Reference: Section 1.1 The Discovery of Cells
5) Despite being correct about the first two tenets of the Cell Theory, Schleiden and Schwann made an error about another central feature of cells. What was their error?
a) They stated that all cells were smaller than 2 µ in diameter.
b) They claimed that all cells were exactly the same in every detail.
c) They stated that all cells were immortal.
d) They both agreed that cells could arise from noncellular materials.
e) They claimed that all cells had nuclei through their entire existence.
Answer: d Difficulty: Medium
Learning Objective: LO 1.1 Discuss the major discoveries of cell theory. Section Reference: Section 1.1 The Discovery of Cells [Show Less]