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ASU BIO 181 EXAM 1. QUESTIONS
AND ANSWERS, 100% AC CURATE.
GRADED A+
Question :The association of ribosomes with _____
invaginations would support the _____ theory.
CORRECT ANSWER: membrane, endomembrane
Question :After a cell is pancake shaped in a cell culture
dish, the order of events that occurs as a cell walks is?
CORRECT ANSWER:filapodia, lamellipodia, cell
muscle, retraction fiber
Question :T/F It is presumed that the peroxisomes
evolved in these primitive, proto-eukaryotes to remove oxygen, which was toxic to the primitive cells.
CORRECT ANSWER: true
Question :T/F In an extant prokaryotic cell the outer
boundary of life is the capsule.
CORRECT ANSWER: false
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Question :T/F When cancer cells are crowded by
surrounding cells, the cancer cells become spherical and they can still go through cell division.
CORRECT ANSWER: true
Question :T/F Loss of the cell wall was required for the
endomembrane system theory.
CORRECT ANSWER: true
Question :T/F Fluorescence microscopy is form of light
microscopy
CORRECT ANSWER: true
Question :T/F Loss of the cell wall is required for the
endosymbiotic theory.
CORRECT ANSWER: true
Question :T/F TEM provides a thin, two-dimensional
section of the object being studied.
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CORRECT ANSWER: true
Question :T/F the sytoskeleton enabled the primitive cell
to become motile.
CORRECT ANSWER: true
Question :T/F the ancient earth did not contain much
oxygen
CORRECT ANSWER: true
Question :A normal cell is _____ and ____ for growth.
CORRECT ANSWER: mortal, anchorage dependent
Question :T/F Ribosomes bound to some of the
membrane invaginations in the endomembrane theory
CORRECT ANSWER: true
Question :T/F the cytoskeleton gave rise to the nuclear
envelope
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CORRECT ANSWER: false
Question :What limits how big a cell can be?
CORRECT ANSWER: the surface area to volume ratio
Question :T/F DNA in extant prokaryotic cells is circular.
CORRECT ANSWER: True
Question :Why did Motility improved the fitness of these
early cells?
CORRECT ANSWER: it allowed them to move away
from predators and towards food
Question :T./F the end of the retraction fiber touching the
cell culture plate still contains the cell equivalent of super glue.