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Name: ________________________________
Date: ___________________________
Science 8 Review (Biology)
Sources of reference:
Your notes and handouts; Our website (www.msgiacometti.weebly.com); your teacher; your peers.
I.
CHARACTERISTICS OF LIFE
1.
List, describe, and give an example of the six characteristics of living things (acronym: GRRUPT)
Acronym Characteristic
Description
Specific Example
G
R
R
U
P
T
2.
Complete the following sentence, using the proper scientific vocabulary term:
Biotic is to living, as ______________________ is to non-living.
3.
In the “Science Court” video, a chicken bone was considered to be dead (was once living), while the leather
wallet was not. What was the distinguishing difference between the two items?
__________________________________________________________________________________________________
II.
CELL THEORY
1.
The three components of the cell theory are:
i.
_____________________________________________________________________________________
ii.
_____________________________________________________________________________________
iii.
_____________________________________________________________________________________
III.
TYPES OF CELLS
1.
Cells are classified into three main categories:
i.
_______________________;
ii.
__________________________; and iii. archebacteria
2.
Bacteria are classified as which of the above? _____________________________________________________
3.
What do eurkaryotes have that prokaryotes don’t? ________________________________________________
__________________________________________________________________________________________
4.
Answer True or False to each of the following. Wherever you answer False, write a complete statement which
would make it true.
a.
Bacteria are used in the production of food for human consumption __________
_________________________________________________________________________________________________
b.
Prokaryotic cells are also known as viruses __________
_________________________________________________________________________________________________
c.
Prokaryotic cells do not have a nucleus or membrane bound organelles __________
_________________________________________________________________________________________________
d.
Most bacteria are not harmful __________
_________________________________________________________________________________________________
e.
Viruses and bacteria are common examples of eurkaryotic organisms. __________
_________________________________________________________________________________________________
f.
Prokaryotic cells have more cell parts than eukaryotic cells. __________
_________________________________________________________________________________________________
g.
Pathogenic bacteria cause disease and infection. __________
_________________________________________________________________________________________________
h.
Bacteria are larger than most eurkaryotic cells. __________
_________________________________________________________________________________________________
i.
Antibiotics are medicines used to kill viruses. __________
_________________________________________________________________________________________________
j.
A microbe is an organism which cannot be seen without the aid of a microscope. __________
_________________________________________________________________________________________________
5.
Identify the following parts on the diagram of a bacterium (below)
Bacterial Cell Parts List:
6.
7.
Capsid
DNA or RNA
Cell wall
Cell membrane
Flagellum
Pilli
Cytoplasm
Ribosome
Identify the cell part from question 5, responsible for each of the following functions:
a.
Helps the bacterium to move about its environment __________________________________________
b.
Helps the bacterium to stick to surfaces ____________________________________________________
c.
Controls the functioning of the cell ________________________________________________________
d.
Regulates what goes into and out of the cell ________________________________________________
e.
Protects the cell from harmful stuff surrounding it ___________________________________________
Match the following diagrams of bacteria shapes with their scientific name (bacilli, cocci, or spirilli)
A.
B.
C.
________________________
________________________
________________________
8. Look at the partially completed concept map below. The ovals contain the concept words. Beside each arrow is a
linking phrase.
Use words from the Word List to fill in the concepts and linking phrases that are missing from the concept map.
Word List
the cell
organelles
that stores
photosynthesis occurs
of the
control centre
that produces
the contents of the cell
mitochondrion
chloroplast
that protects
cell
vacuole
9.
Label the parts of a plant cell (below)
10.
Label the parts of an animal cell (below)
11.
Review the function of cell organelles, and determine if they are present () in either Animal or Plant cells.
Note: The organelles in the shaded area of the table are for extension(bonus) only – not tested in grade 8.
Cell Part
Description
Cell membrane
The structure that protects the cell and
controls the movement of particles into and
out of the cell.
Cell wall
A tough, rigid structure that surrounds the
cell membrane.
Cytoplasm
A jelly-like substance containing organelles,
water, and other life-supporting materials.
Nucleus
The organelle that controls all the activities
within a cell.
Mitochondrion
The energy-producing organelle in the cell.
Chloroplast
The organelle that traps the energy from the
Sun and changes it into chemical energy.
Vacuole
The organelle that performs several
functions, such as temporary storage of
substances and water regulation. Vacuoles
tend to be larger in plant cells.
Vesicle
A membrane-bound sac that is smaller than
a vacuole. Vesicles move materials into, out
of, and around the inside of the cell.
Endoplasmic
reticulum
A network of membrane-covered channels in
the cytoplasm that transport materials.
Golgi body
The organelle that packages some materials
for transport inside the cell or for transport
out of the cell.
Lysosome
The organelle that contains digestive
enzymes that help the cell break down large
particles and old worn-out cell organelles.
Ribosome
The organelle that assembles materials
called proteins.
Present in Animal
Cell?
Present in
Plant Cell?
12.
Use the Venn Diagram below to compare and contrast a prokaryotic cell and a eukaryotic cell.
Prokaryotic cell
Eukaryotic cell
IV:
VIRUSES
1.
Study and review the Mini-booklet on viruses (first page title is “Concept Covered: Introduction to Viruses”)
2.
Answer True or False to each of the following. Wherever you answer False, write a complete statement which
would make it true.
a.
A virus is not a cell __________
_________________________________________________________________________________________________
b.
Viruses can reproduce on their own. __________
_________________________________________________________________________________________________
c.
Virus particles are made up of genetic material surrounded by a cell membrane. __________
_________________________________________________________________________________________________
d.
Viruses carry on most of the regular functions of a eukaryotic cell. __________
_________________________________________________________________________________________________
e.
Viruses always have a negative impact on their host cells. __________
_________________________________________________________________________________________________
f.
Viruses are responsible for such human diseases as chicken pox, small pox, and the flu. __________
_________________________________________________________________________________________________
g.
Antibiotics are a good course of treatment for viral infections. __________
_________________________________________________________________________________________________
h.
The average virus particle is larger than the average bacterium. __________
_________________________________________________________________________________________________
3.
The following sentences are not placed in the correct order. Rearrange them to create an explanation of how
vaccines work to protect us from a viral infection like the measles.
_____ You come in contact with active, contagious, measles virus.
_____ You are injected with a weakened or inactive form of the measles virus.
_____ Your immune system is now programmed to make antibodies to fight measles virus.
_____ Your body is tricked into thinking you have the measles virus and your immune system creates
antibodies which fight it.
_____ Your immune system immediately recognizes the virus and makes loads of antibodies which fight it off
before you become sick.
4.
What are some of the most effective ways to combat the spread of viral infection in humans?
5.
How can vaccines affect the impact of viral infections on the human population?
Last (but not least), please be sure to study your Bacteria and Viruses Outline handout prior to this unit test.
Good Luck!!!!