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?