Name _____________________________________________ Date____________________ Class______
Unit 2 Test Review (due on Test Day! No Homework Passes Allowed)
Characteristics of Life
1. What are the seven characteristics of life?
___________________________ _____________________ ______________________
___________________ ____________________ ____________________ __________________
2. Fill in the blank for each statement:
Cells are the basic ______________________________.
All organisms are made up of one _________________________.
All cells come from ________________________________.
3. How are living things organized? (fill in the blanks)
Cells _________________ ____________________ ____________________ ____________
4. What is an organism? ______________________________________
Types of Cells
5. What is the difference between a prokaryotic and a eukaryotic cell?
_____________________________________________________________________________________
_____________________________________________________________________________________
6. Complete the Venn Diagram about the differences and similarities between prokaryotic and
eukaryotic cells.
7. Draw a prokaryotic and a eukaryotic cell. Label the main parts and give an example of an organism
that would be a prokaryote and an organism that would be a eukaryote.
Name _____________________________________________ Date____________________ Class______
8. Which of the following cells are bigger and more complex? (Circle one) Prokaryotic or eukaryotic.
Why? _______________________________________________________________________________
9. Bacteria are prokaryotic cells that can have flagella and cilia. Draw one bacteria cell with flagella, and
draw a second bacteria with cilia. Label the parts.
Cellular Organelles
10. Label the organelles of an animal cell below.
11. Label the organelles of a plant cell below.
Name _____________________________________________ Date____________________ Class______
12. Match the organelle to its correct function (Use your organelle chart in your notebook!)
Converts light energy to chemical energy in plant cells. __________________________________
The site of protein synthesis, also transports materials within the cell. _______________________
Transports materials within the cell (does not have ribosomes on it)__________________________
Gel like substance inside the cell that is outside of the nucleus _______________________________
Organelle that manages and controls all the cell functions in a eukaryotic cell ______________________
Digests excess or worn out cell parts, food particles, and invading things __________________________
Provides temporary storage of food, water, enzymes and waste products _________________________
Firm, protective structure that gives plant cells its shape __________________________________
Produces a usable form of energy for the cell ___________________________________
Packages proteins for transport out of the cell ___________________________________
Membrane surrounding all cells and controls what goes in and out __________________________
13.
Label the following on the bacteria cell: Cillia, Flagella, Ribosome, Genetic Material, Cytoplasm, Cell Wall,
Cell Membrane.
What is the purpose of the ribosome in a bacteria
cell?___________________________________________________________________________
Bacteria and Viruses
14. What is the difference between how a virus and a bacteria look?
___________________________________________________________________
15. Bacteria and viruses must invade a living thing to reproduce. What are those living things called?
______________________________
16. Draw and label the two viruses we created in our interactive notebook.
Name _____________________________________________ Date____________________ Class______
17. A bacteria has a cell _______________ made of _________________ to protect it.
18. A virus is surrounded by a protein coat called a ____________________________________.
19. Draw and name the three shapes that bacteria could be:
20. Describe two ways that bacteria are good and two ways that bacteria are bad.
_____________________________________________________________________________________
_____________________________________________________________________________________
21. Bacteria are treated using _____________________, and viruses are prevented by getting a shot
called a _______________________________.
22. Which is bigger, a bacteria cell or a virus (circle one). What is a very small thing, such as a bacteria or
a virus called? ____________________________________________
23. The genetic information inside of a bacteria is ___________________. The genetic information
inside of a bacteria can be either _____________ or ______________ but NEVER ________________.
Virus Reproduction
23. There are two cycles that viruses use to reproduce. One is fast and quick and is called the
______________________.
Describe each step of the lytic cycle:
1) Adsorption: ______________________________________________________________
2) Entry: ___________________________________________________________________
3) Replication: ______________________________________________________________
4) Assembly: _______________________________________________________________
5) Release: _________________________________________________________________
Draw the lytic cycle in the space below:
1. 2 3 4 5
24. The virus reproduction cycle that happens very slowly, takes years, and sneaks into the cell is called
the ___________________________________.
Name _____________________________________________ Date____________________ Class______
Describe each step of the lysogenic cycle:
1) Virus attaches to the host cell.
2) The virus inject either _______________ or _____________ into the host cell. The genetic material
___________________ with the DNA of the _______________________.
3) The host cell replicates and splits into 2. The viruses ______________ will also divide with the
____________________________.
4) Eventually, the virus switches from the _________________ cycle to the _____________ cycle.
Types of Cell Transport
25. Cell membranes are semi ______________________________. What does that mean?
________________________________________________________________________________
26. Which biomolecule is the cell membrane made of? ___________________________________
27. Describe active transport:
_____________________________________________________________________________________
28. Describe simple diffusion:
_____________________________________________________________________________________
29. Describe facilitated diffusion:
_____________________________________________________________________________________
30. If a saltwater fish (90% water) is placed in fresh water (100% water), water will likely move into the
fish and kill the fish. This is most due to:
a) Facilitated transport b) Osmosis c) Endocytosis d) Exocytosis
31. Placing wilted lettuce in cold water will make it crisp again. Which statement best describes what
happens to restore the lettuce to its original condition?
a) Water leaves the lettuce cells by diffusion b) Water enters the lettuce cells by osmosis
c) Osmosis causes salts to enter the lettuce cells d) Salt in the lettuce cells cause water to leave the cells
32. A solution that has a greater solute concentration than a cell is a ________________ solution.
a) Hypertonic b) Hypotonic c) Isotonic d) Heterogeneous
33. Fill in the blanks in the spaces below and then answer the questions about this osmotic solution:
Where is the higher concentration of solute?
Where is the higher concentration of water?
Which direction will water move?
What type of osmotic solution is shown?