6th Grade Elements, Atoms, and Cells

Question 1

*Each of the following is a main idea of the cell theory except ___

Accepted Answer

the cell is the basic unit of organization of organisms

Question 2

*If a cell contains a nucleus, it must be a(n)

Accepted Answer

eukaryotic cell

Question 3

An example of a prokaryotic cell is a ___cell.

Accepted Answer

bacteria

Question 4

*Which of the following organisms do not have cell walls?

Accepted Answer

animals

Question 5

The elements that do not ordinarily form compounds are ___

Accepted Answer

noble gases

Question 6

*The scientist who first described living cells as seen through a simple microscope was ___

Accepted Answer

van Leeuwenhoek

Question 7

What information in the periodic table indicates the number of protons in an atom?

Accepted Answer

the element's atomic number

Question 8

*Which particles in atoms have a negative electric charge?

Accepted Answer

electrons

Question 9

*In an atom, the number of protons equals the number of ___

Accepted Answer

electrons

Questions 9