BIO 181 Exam Bundle 2025 | BIO 181 Exam 1, 2, 3, and Final Exam | Updated
Questions and Correct Answers | Latest Version (Just Released)
The association of ribosomes with _____ invaginations would support the _____ theory. - (CORRECT
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? -
(CORRECT ANSWER)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. - (CORRECT ANSWER)true
T/F In an extant prokaryotic cell the outer boundary of life is the capsule. - (CORRECT 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. - (CORRECT ANSWER)true
T/F Loss of the cell wall was required for the endomembrane system theory. - (CORRECT ANSWER)true
T/F Fluorescence microscopy is form of light microscopy - (CORRECT ANSWER)true
T/F Loss of the cell wall is required for the endosymbiotic theory. - (CORRECT ANSWER)true
T/F TEM provides a thin, two-dimensional section of the object being studied. - (CORRECT ANSWER)true
T/F The sytoskeleton enabled the primitive cell to become motile. - (CORRECT ANSWER)true
T/F the ancient earth did not contain much oxygen - (CORRECT ANSWER)true
A normal cell is _____ and ____ for growth. - (CORRECT ANSWER)mortal, anchorage dependent
, 2
T/F Ribosomes bound to some of the membrane invaginations in the endomembrane theory - (CORRECT
ANSWER)true
T/F the cytoskeleton gave rise to the nuclear envelope - (CORRECT ANSWER)false
What limits how big a cell can be? - (CORRECT ANSWER)the surface area to volume ratio
T/F DNA in extant prokaryotic cells is circular. - (CORRECT ANSWER)True
Why did Motility improved the fitness of these early cells? - (CORRECT 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. - (CORRECT 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. - (CORRECT ANSWER)true
1n order to examine cells which are smaller than can be detected by the human senses what needs to
be used ? - (CORRECT ANSWER)technology
A cell that is itself an organism must have a minimum of four needs presented in lecture - (CORRECT
ANSWER)find food, find shelter, find mate, and reproduce.
compared to bacteria which of the cell types below are not responsible for finding food? - (CORRECT
ANSWER)lymphocyte, macrophage, and fibroblast
Questions and Correct Answers | Latest Version (Just Released)
The association of ribosomes with _____ invaginations would support the _____ theory. - (CORRECT
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? -
(CORRECT ANSWER)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. - (CORRECT ANSWER)true
T/F In an extant prokaryotic cell the outer boundary of life is the capsule. - (CORRECT 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. - (CORRECT ANSWER)true
T/F Loss of the cell wall was required for the endomembrane system theory. - (CORRECT ANSWER)true
T/F Fluorescence microscopy is form of light microscopy - (CORRECT ANSWER)true
T/F Loss of the cell wall is required for the endosymbiotic theory. - (CORRECT ANSWER)true
T/F TEM provides a thin, two-dimensional section of the object being studied. - (CORRECT ANSWER)true
T/F The sytoskeleton enabled the primitive cell to become motile. - (CORRECT ANSWER)true
T/F the ancient earth did not contain much oxygen - (CORRECT ANSWER)true
A normal cell is _____ and ____ for growth. - (CORRECT ANSWER)mortal, anchorage dependent
, 2
T/F Ribosomes bound to some of the membrane invaginations in the endomembrane theory - (CORRECT
ANSWER)true
T/F the cytoskeleton gave rise to the nuclear envelope - (CORRECT ANSWER)false
What limits how big a cell can be? - (CORRECT ANSWER)the surface area to volume ratio
T/F DNA in extant prokaryotic cells is circular. - (CORRECT ANSWER)True
Why did Motility improved the fitness of these early cells? - (CORRECT 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. - (CORRECT 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. - (CORRECT ANSWER)true
1n order to examine cells which are smaller than can be detected by the human senses what needs to
be used ? - (CORRECT ANSWER)technology
A cell that is itself an organism must have a minimum of four needs presented in lecture - (CORRECT
ANSWER)find food, find shelter, find mate, and reproduce.
compared to bacteria which of the cell types below are not responsible for finding food? - (CORRECT
ANSWER)lymphocyte, macrophage, and fibroblast
