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ASU BIO 181 Exam 2 (modules 7-12) with complete solutions 2024_2025
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ASU BIO 181 Exam 2 (modules 7-12) with complete solutions 2024_2025
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ASU Bio 181 Exam 1 with completesolutions 2024/2025
The association of ribosomes with _____ invaginations would support the _____
theory. - ANSWER-membrane, endomembrane
After a cell is pancake shaped in a cell culture dish, the order of events that
occurs as a cell walks is? - ANSWER-filopodia, lamellipodia, cell muscle,
retraction fiber
T/F It is presumed that the peroxisomes evolved in these primitive, proto-
eukaryotes to remove oxygen, which was toxic to the primitive cells. - ANSWER-
true
T/F In an extant prokaryotic cell the outer boundary of life is the capsule. -
ANSWER-false
T/F When cancer cells are crowded by surrounding cells, the cancer cells become
spherical and they can still go through cell division. - ANSWER-true
T/F Loss of the cell wall was required for the endomembrane system theory. -
ANSWER-true
T/F Fluorescence microscopy is form of light microscopy - ANSWER-true
T/F Loss of the cell wall is required for the endosymbiotic theory. - ANSWER-true
T/F TEM provides a thin, two-dimensional section of the object being studied. -
ANSWER-true
, T/F The sytoskeleton enabled the primitive cell to become motile. - ANSWER-true
T/F the ancient earth did not contain much oxygen - ANSWER-true
A normal cell is _____ and ____ for growth. - ANSWER-mortal, anchorage
dependent
T/F Ribosomes bound to some of the membrane invaginations in the
endomembrane theory - ANSWER-true
T/F the cytoskeleton gave rise to the nuclear envelope - ANSWER-false
What limits how big a cell can be? - ANSWER-the surface area to volume ratio
T/F DNA in extant prokaryotic cells is circular. - ANSWER-True
Why did Motility improved the fitness of these early cells? - ANSWER-it allowed
them to move away from predators and towards food
T./F the end of the retraction fiber touching the cell culture plate still contains the
cell equivalent of super glue. - ANSWER-true
T/F the presumed first step in the transition of the primitive, proto-prokaryotic cell
into the primitive, proto-eukaryotic cell was the loss of the cell wall. - ANSWER-
true
1n order to examine cells which are smaller than can be detected by the human
senses what needs to be used ? - ANSWER-technology
A cell that is itself an organism must have a minimum of four needs presented in
lecture - ANSWER-find food, find shelter, find mate, and reproduce.
compared to bacteria which of the cell types below are not responsible for finding
food? - ANSWER-lymphocyte, macrophage, and fibroblast
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