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Review: Final Exam Unit 4 (Cell Topics)
Directions: Use all of your science resources (your textbook, notes, worksheets, lab
reports, old tests and quizzes, etc.) to complete this review packet in preparation of
the final exam.
1. What is the Cell Theory?
A widely accepted explanation of the relationship between cells and
living things.
2. List the 3 parts of the Cell Theory.
1. All living things are composed of cells
2. Cells are the basic unit of structure and function in living things.
3. All cells are produced from other living cells like them.
3. Know the following contributors found on Glossary: Unit IV Terms:
Robert Hooke, Anton von Leeuwenhoek, Theodor Schwann, Matthias Schleiden,
and Rudolf Virchow
4. Please label the attached animal cell diagram.
5. Please label the attached plant cell diagram.
6. Know the following definitions found on Glossary: Unit IV Terms:
cell membrane, cell wall, chloroplast, chromatin, cytoplasm, Golgi body,
lysosomes, mitochondria, nuclear membrane, nucleolus, nucleus, ribosome,
rough ER, smooth ER, vacuole
7. Know the following definitions found on Glossary: Unit IV Terms:
passive transport, active transport, osmosis, diffusion, transport proteins,
transport by engulfing
8. Using your knowledge of Osmosis, complete the problems below.
Key
**Note: the cell membrane is impermeable to the X particles.
=the Environment
=the cell
x =particles
 =movement of water
Situation 1
Situation 2
Environment:
Hypotonic
Environment:
isotonic
The Cell:
Hypertonic
The Cell:
isotonic
Water Movement:
Into the cell
Water Movement:
What happens to the cell:
Expands and possibly explode
What happens to the cell:
stays about the same size
9. What organelle is responsible for regulating the materials that move into and out of
all cells?
selectively-permeable cell membrane
10. Draw and briefly describe the forms of DNA during the Cell Cycle.
chromatin
chromosome
chromatid
-slightly coiled DNA
-exists during
Interphase, early
Prophase, late
Telophase
- highly coiled DNA
- exists during
late Prophase
Metaphse, early
Anaphase
-½ of a chromosome
- exists during late
Anaphase, early
Telophase
11. Fill in the missing information about the Cell Cycle.
I. Interphase
 Cell grows to its full size
 Chromatin doubles through DNA replication
 centrioles form and begin to move to opposite ends of the
cell
II. Mitosis
a. Prophase
 Chromatin condenses, forming chromosomes
 The nuclear membrane breaks down
 Spindle fibers form
b. Metaphase
 Spindle fibers attach to centromeres
 Chromosomes line up down the middle of the cell
c. Anaphase
 Sister chromatids are pulled apart
 Some spindle fibers stretch the cell
d. Telophase
 Nuclear membrane reforms
 Chromatids turn back into chromatin
 Cytokinesis begins
III. Post-cytokinesis
AKA Interphase
 A furrow develops during Telophase
 The cytoplasm completely divides, leaving 2 smaller
daughter cells
 New cells immediately start Interphase again
12. What is the mnemonic device for the parts of the Cell Cycle?
I prefer M&Ms and teriyaki chicken.
13. What are the levels of cellular organization in an organism?
Cell  Tissue  Organ  Organ system  Organism
Note: Although these are not the same plant and animal cell diagrams that you had
in your study guide, you can use these diagrams to check your work.