ASU Bio 181 Exam 1 Study Questions and
Answers
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-filapodia, l...
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
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