Name: _______________________________________________________________________
Period: _____________
1st 6 Weeks Extra Credit Assignment: Replace your lowest quiz or lab grade
Multiple Choice: (worth 3 points each)
1. In eukaryotic cells, the structure that controls the cell’s
activities is the
a. cell membrane.
c. nucleolus
b. organelle
d. nucleus
2. Despite differences in size and shape, a some point all
cells have DNA and a
a. cell wall.
c. mitochondrion.
b. cell membrane.
d. nucleus.
3. What distinguishes a eukaryotic cell from a prokaryotic
cell is the presence of
a. a cell wall.
c. DNA.
b. a nucleus.
d. ribosomes.
4. The organelles that break down lipids, carbohydrates,
and proteins, into small molecules that can be used by
the cell are called
a. vacuoles.
c. ribosomes.
b. lysosomes
d. microfilaments.
5. Cell membranes consist mostly of
a. lipid bilayers
c. carbohydrates
b. protein pumps
d. proteins
6. the movement of water molecules across a selectively
permeable membrane is known as
a. exocytosis
c. endocytosis
b. phagocytosis
d. osmosis
7. A substance that moves by passive transport tends to
move
a. away from the area of equilibrium.
b. away from the area where it is less concentrated.
c. away from the area where it is more concentrated.
d. toward the area where it is more concentrated.
8. Which of the following is true of ALL prokaryotes?
I. They are all types of bacteria.
II. They all contain genetic material that they can pass on
to their offspring.
III. They all contain a nucleus in their cells that controls its
activities.
a. I and II
b. II and III
c. I and III
d. I, II, and III
9. Which of the following is true of ALL eukaryotes?
I. They all contain a cell wall that surrounds their cells and
provides structure and defense.
II. They all contain a cell membrane that surrounds their
cells that regulates what enters and leaves the cell.
III. They all contain ribosomes inside their cells that build
proteins.
a. II only
b. I and III
c. II and III
d. I, II, and III
10. In cells that require a lot of energy, like nerve cells or
muscle cells, you might expect to find more
a. ribosomes.
c. smooth E.R..
b. chloroplasts.
d. mitochondria.
11. In fat cells, which contain many lipids that store
excess energy for the organism, you might expect to find
more
a. ribosomes.
c. smooth E.R..
b. chloroplasts
d. mitochondria.
12. The movement of a substance into the cell using
vesicles is called
a. exocytosis
c. endocytosis
b. facilitated diffusion
d. osmosis
13. In 1665, who used an early microscope to look at cork
and coined the term ‘cell’ ?
a. Robert Hooke
c. Rudolf Virchow
b. Anton von Leeuwenhoek
d. Matthias Schleden
14. If a bacteria cell is placed in a solution and it starts to
shrink or shrivel up, then the solution it was placed in is
a. hypertonic.
c. hypotonic.
b. isotonic.
d. at equilibrium.
15. What is the main molecule that works as “energy” in
most organisms?
a. DNA
c. RNA
b. proteins
d. ATP
Essay questions: write 3 to 5 complete sentences (worth 11 points each)- You might need to use your book or the
internet to research information we didn’t go over in our notes:
1. What are two main differences between active and passive transport? What is an example of each? Explain about
concentration gradients. _____________________________________________________________________________
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2. Research two ways that your body maintains homeostasis and explain them: _________________________________
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3. Explain why you cannot drink salt water to survive. Use the following terms in your explanation- osmosis, hypertonic,
concentration, and solute. ____________________________________________________________________________
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4. How do the ribosomes, rough endoplasmic reticulum, vesicles, and Golgi work together to build proteins?
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5. In your own words, what is the cell theory? Explain each of its points.
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