Self-Checks - Bio 181
Module 1 Self Check
1. The paramecium swims by way of using a flagella.
• False
2. In order to examine cells which are smaller
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the human senses, what needs to be used? (pick the best answer).
• Technology
3. A normal cell is anchorage-dependent for growth and mortal.
• True
4. A single-celled eukaryotic organism:
• A,B,C, above
5. In your own multicellular body, different cells in your body have a
division of labor between them.
• True
6. In your own multicellular body, cells with different functions have
different DNA.
• False
7. Compared to bacteria which of the cell types below are not
responsible for finding food
• A, B, C
8. A cell that is anchorage-dependent for growth will also exhibit contact
inhibition.
• True
9. In Cell Biology what can limit the progress of science?
• Technology
10. A cancer cell will be anchorage-dependent for growth and
immortal.
• False
11. The contractile vacuole of the paramecium is possibly an
evolutionary precursor of the kidney.
• True
12. The paramecium discussed in class contained an organelle calledthe
contractile vacuole. This is the presumed precursor of the:
• Kidney
13. Comparing a single-celled eukaryotic organism with a
multicellular organism such as yourself identify the major
difference from the list below.
• Division of labor
14. A cell that is itself an organism must have a minimum of four
needs presented in lecture. List these four things.
• Food, shelter, reproduce, and mating
15. Write a few sentences that explain what limits an individual cellfrom
becoming more complex.
• There are a few things that limit an individual cell from
becoming more complex and that would include having a
limited number of biomolecular machines which affects the
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division of labor.
16. What limits the paramecium from acquiring more complex
functions?
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• Since it is a single celled organism there is only so
much space in the cytoplasm and therefore the
number of biomolecular machines that it can contain
limits it from acquiring more complex functions.
Module 2 Self Check
1. A normal cell is and for growth.
• Mortal, anchorage dependent
2. In an extant prokaryotic cell, the outer boundary of life is the capsule.
• False
3. The cytoskeleton enabled the primitive cell to become motile.
• True
4. Loss of the cell wall is required for the endosymbiotic theory.
• True
5. DNA in extant prokaryotic cells is circular.
• True
6. It is presumed that the peroxisomes evolved in these primitive, protoeukaryotes to remove oxygen, which was toxic to the primitive cells.
• True
7. What limits how big a cell can be?
• The surface area to volume ratio
8. The presumed first step in the transition of the primitive, protoprokaryotic cell into the primitive, proto-eukaryotic cell was the loss
of the cell wall.
• True
9. List one limitation of the cell culture technique.
• Not all cells grow in culture
10. Ribosomes bound to some of the membrane invaginations in the
endomembrane theory.
• True
11. The cytoskeleton gave rise to the nuclear envelope.
• False
12. The ancient earth did not contain much oxygen.
• True
13. Finish the sentence based on my
lectures: The association of ribosomes
with
invaginations would support the theory.
• Membrane, endomembrane
14. Fluorescence microscopy is a form of light microscopy.
• True
15. The end of the retraction fiber touching the cell culture plate still
contains the cell equivalent of super-glue.
• True
16. TEM provides a thin, two-dimensional section of the object being
studied.
• True
17. Motility improved the fitness of these early cells because:
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• It allowed them to move away from predators and towards food
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18. Loss of the cell wall was required for the endomembrane system
theory.
• True
19. When cancer cells are crowded by surrounding cells, the
cancer cells become spherical and they can still go through cell
division.
• True
20. After a cell is pancake shaped in a cell culture dish, the order
of events that occurs as a cell walks is (pick the best order):
• Filapodia, lamellipodia, cell muscle, retraction fiber
21. Why is it important to know the limitations of technology?
• Because you can’t advance science when you don’t
know the limitations
Module 3 Self Check
1. When a vesicle fuses with the plasma membrane the contents of
the lumen of the vesicle are:
• Ligands that are used in cell communication
2. For a protein to enter the endoplasmic reticulum as part of the
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