Chapter 1 Cells

Chapter 1
Section Reviews and
Chapter Review
1.) In your own words, write a
definition for the term organelle.
An organelle is a tiny organ within a cell that
has its own unique function or job.
2.) Use the following terms in the same
sentence: Prokaryotic, nucleus, and
prokaryotic cell is a cell that does NOT
have a nucleus while a eukaryotic cell
does have a nucleus.
3.) Cell size is limited by the
 A.
Thickness of the cell wall
 B. Size of the cell’s nucleus
 C. Cell’s surface area-to-volume ratio.
 D. Amount of cytoplasm in a cell
4.) What are the three parts of the
cell theory?
 1.)
All organisms are made of one or
more cells.
 2.) The cell is the basic unit of all life.
 3.) All cells come from existing cells.
5.) Name three structures that
every cell has.
 All
cells have a cell membrane.
 All cells have cytoplasm.
 All cells have genetic material
6.) Give two ways that
archaebacteria are different from
 Archaebacteria
have a different type of
cell wall and cell membrane and,
 Archaebacteria have different ribosomes.
 More like those of eukaryotes.
7.) You have discovered a new single-celled
organism. It has a cell wall, ribosomes, and
long, circular DNA. Is it a eukaryote or
prokaryote? Explain.
 The
organism is a prokaryote because;
It has long circular DNA and
Doesn’t have a nucleus.
8.) One of your students brings you a cell
about the size of a period at the end of a
sentence. It is a single cell, but it also forms
chains. What characteristics would this cell
have if the organism is a eukaryote?
 If
the cell were a eukaryote it would have
the following;
 A nucleus
 Membrane bound organelles
8.) Continued: Prokaryote
 If
the cell were a prokaryote you would
not see a nucleus
9.) What type of organism does
the picture show?
 It
is a prokaryote because it does not have a
nucleus. It has long circular DNA instead.
10.) Which structure helps the
organism move?
 The
flagellum helps the prokaryotic
organism move.
11.) What part of the organism doest
the letter “A” represent?
 Letter
“A” represents the DNA for the
prokaryotic cell.