Cell Theory

Question 1

According to the cell theory, which describes cells?

Revolt · Accepted Answer

D: All living cells come from other living cells.

Question 2

Which experiments led to changes to the original cell theory?

Revolt · Accepted Answer

B: experiments that showed that all cells are similar in how they metabolize and in their composition

Question 3

Which microscope did Anton van Leeuwenhoek use to observe single-celled organisms?

Revolt · Accepted Answer

A: simple microscope

Question 4

Which type of microscope was the first to be used for studying single-celled organisms?

Revolt · Accepted Answer

A: simple microscope

Question 5

Which is a part of the cell theory?

Revolt · Accepted Answer

A: cells come from pre-existing cells

Question 6

In the 1600s, which scientist discovered microbes in pond water by using a microscope?

Revolt · Accepted Answer

C: Anton van Leeuwenhoek

Question 7

What do scanning electron microscopes and transmission electron microscopes have in common?

Revolt · Accepted Answer

D: Both require a vacuum.

Question 8

Which was the first “cell” viewed by the light microscope?

Revolt · Accepted Answer

D: oak bark

Question 9

Which microscope uses a series of lenses to magnify an object in steps?

Revolt · Accepted Answer

C: compound light microscope

Question 10

Which reason best explains why dead specimens must be used with transmission electron microscopes?

Revolt · Accepted Answer

C: Specimens are placed in a vacuum.

Cell Theory Answers