Section 7.1: Cell Discovery and Theory

Question 1

cell

Answer 1

the basic structural and functional unit of all living organisms

Question 2

cell theory

Answer 2

one of the fundamental ideas of modern biology that includes the principles that: all living organisms are composed of one or more cells, cells are the basic unit of structure and organization of all living organisms, and cells arise from only previously existing cells, with cells passing copies of their genetic material on to their daughter cells.

Question 3

plasma membrane

Answer 3

a special boundary that helps control what enters and leaves the cell

Question 4

organelles

Answer 4

specialized structures that carry out specific cell functions

Question 5

eukaryotic cells

Answer 5

cells that contain a nucleus and other organelles that are bound by membranes

Question 6

nucleus

Answer 6

a distinct central organelle that contains the cell’s genetic material in the form of DNA

Question 7

prokaryotic cells

Answer 7

cells without a nucleus or other membrane-bound organelles