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ASU Bio 181 Exam 1 questions with correct answers
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ASU Bio 181 Exam 1 questions with correct answers
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ASU Bio 181 Exam 1 questions withcorrect answers
The association of ribosomes with _____ invaginations would support the _____ theory. -
ANSWERS✔✔ membrane, endomembrane
After a cell is pancake shaped in a cell culture dish, the order of events that occurs as a cell
walks is? - ANSWERS✔✔ filapodia, 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. - ANSWERS✔✔ true
T/F In an extant prokaryotic cell the outer boundary of life is the capsule. - ANSWERS✔✔
false
T/F When cancer cells are crowded by surrounding cells, the cancer cells become spherical
and they can still go through cell division. - ANSWERS✔✔ true
T/F Loss of the cell wall was required for the endomembrane system theory. -
ANSWERS✔✔ true
T/F Fluorescence microscopy is form of light microscopy - ANSWERS✔✔ true
T/F Loss of the cell wall is required for the endosymbiotic theory. - ANSWERS✔✔ true
T/F TEM provides a thin, two-dimensional section of the object being studied. -
ANSWERS✔✔ true
, T/F The sytoskeleton enabled the primitive cell to become motile. - ANSWERS✔✔ true
T/F the ancient earth did not contain much oxygen - ANSWERS✔✔ true
A normal cell is _____ and ____ for growth. - ANSWERS✔✔ mortal, anchorage dependent
T/F Ribosomes bound to some of the membrane invaginations in the endomembrane theory
- ANSWERS✔✔ true
T/F the cytoskeleton gave rise to the nuclear envelope - ANSWERS✔✔ false
What limits how big a cell can be? - ANSWERS✔✔ the surface area to volume ratio
T/F DNA in extant prokaryotic cells is circular. - ANSWERS✔✔ True
Why did Motility improved the fitness of these early cells? - ANSWERS✔✔ 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. - ANSWERS✔✔ 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. - ANSWERS✔✔ true
1n order to examine cells which are smaller than can be detected by the human senses what
needs to be used ? - ANSWERS✔✔ technology
A cell that is itself an organism must have a minimum of four needs presented in lecture -
ANSWERS✔✔ find food, find shelter, find mate, and reproduce.
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