Review Packet - Old Saybrook Public Schools

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The Cell Part I Review Packet
Part 1: Short answer
1. List the three postulates of the cell theory:
a.
b.
c.
2. For each of the following scientists give a brief statement on their contribution to what
we know about cells today:
a. Hooke:
b. van Leuuwenhoek:
c. Virchow:
d. Schleiden:
e. Schwann:
f. Jansen:
g. Margulis:
3. What does it mean to say that diffusion eventually results in equilibrium?
4. How do endocytosis and exocytosis differ? How are they similar?
5. If a cell were exposed to a poison that blocked the cell’s ability to manufacture
ATP (cellular energy), what effect would that have on the cell membrane’s
transport processes?
6. Lucy & Liam are lost at sea. They know from taking biology class that seawater
has a higher concentration of solutes then do human body cells. They have been
lost at sea for days and Liam is ready to consume large amounts of seawater at
any costs but Lucy is warning him that it could be dangerous. Why?
7. Before chemical preservatives, salt was used to preserve food. Keeping in mind
what you have learned about osmosis, explain why salt was used as a basic
preservative.
Part 2: Multiple choice
8. Cell specialization means that cells in an organism are uniquely suited to
a. carry on reproduction.
b. respond to changing conditions.
c. react with the environment.
d. perform a specific function.
9. All of the following are types of tissues EXCEPT
a. muscle.
c. stomach.
b. fat.
d. blood.
10. All cells contain a
a. cell wall.
b. cell membrane.
c. nucleus.
d. mitochondrion.
11. Of the following, the term that includes all the others is
a. nucleolus.
c. nucleus.
b. nuclear envelope.
d. chromosome.
12. Which organisms are composed of cells that do not contain nuclei?
a. eukaryotes
c. animals
b. prokaryotes
d. plants
13. Which cell has existed longer?
a. prokaryotic
c. They have existed for the same length of time.
b. eukaryotic
d. neither
14. Which cell parts compose the cytoskeleton:
a. microtubules
c. both a & b
b. intermediate and microfilaments
d. none of these
15. Prokaryotes lack
a. cytoplasm.
b. a cell membrane.
c. a nucleus.
d. genetic material.
16. The endosymbiotic theory states:
a. prokaryotic cells arose from being engulfed by eukaryotic cells
b. eukaryotic cells arose from being engulfed by prokaryotic cells
c. prokaryotic cells arose by engulfing mitochondria and chloroplasts
d. eukaryotic cells arose by engulfing mitochondria and chloroplasts
17. The cells of multicellular organisms are
a. smaller than those of unicellular organisms.
b. simpler than those of unicellular organisms.
c. specialized to perform different tasks.
d. not dependent on one another.
18. Eukaryotes usually contain
a. a nucleus.
b. specialized organelles.
c. genetic material.
d. all of the above.
19. Which of the following structures is found in the cytoplasm?
a. nucleolus
c. chromatin
b. ribosome
d. cell wall
20. Which structure makes proteins using coded instructions that come from the
nucleus?
a. Golgi apparatus
c. vacuole
b. mitochondrion
d. ribosome
21. Which organelle converts the chemical energy stored in food into compounds that
are more convenient for the cell to use?
a. chloroplast
c. endoplasmic reticulum
b. Golgi apparatus
d. mitochondrion
22. Which structures carry out cell movement?
a. cytoplasm and ribosome
c. microtubules and microfilaments
b. nucleolus
d. chromosomes
23. The cell membrane contains channels and pumps that help move materials from
one side to the other. What are these channels made of?
a. carbohydrates
c. bilipids
b. lipids
d. proteins
24. Solutes will diffuse faster if
a. they are larger and the temperature is decreased.
b. they are larger and the temperature is increased.
c. they are smaller and the temperature is increased.
d. they are smaller and the temperature is decreased.
25. Diffusion occurs because
a. molecules constantly move and collide with each other.
b. the concentration of a solution is never the same throughout a solution.
c. the concentration of a solution is always the same throughout a solution.
d. molecules never move or collide with each other.
26. A plant cell placed in a hypertonic solution will become
a. turgid.
c. crenated.
b. plasmolyzed.
d. nothing will happen
27. The phospholipid heads of a cell membrane are water-loving or
a. hydrophilic
c. hydroponic
b. hydrophobic
d. isotonic
Part 3: Diagrams
Identify which cell is a plant cell and which is an animal cell. Identify all the lines
indicated AND give a brief description of function.
Complete the Venn Diagram for plants vs. animal cells:
Plant
Label numbers 2, 3, 4, & 6
Animal
Diffusion: With arrows indicate which way the solutes will move in the below
concentration gradients. Assume the solute can fit through the semipermeable
membrane that divides the two environments.
1.
2.
Osmosis: With arrows indicate which way the water will move in the below
concentration gradients.
25% solute
55% solute
*Circle the correct answer:
Is the solution hyper, hypo or isotonic?
Will the cell crenate, lyse or neither?
*Circle the correct answer:
55% solute
5% solute
*Circle the correct answer:
Is the solution hyper, hypo or isotonic?
Will the cell crenate, lyse or neither?
*Circle the correct answer: