ASU Bio 181 Exam 1
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 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
T/F In your own mulitcellular body, different cells in your body have a division of labor between them. - correct answer ✔✔true
T/F The paramecium swims by way of using a flagella - correct answer ✔✔false
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 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
T/F In your own mulitcellular body, different cells in your body have a division of labor between them. - correct answer ✔✔true
T/F The paramecium swims by way of using a flagella - correct answer ✔✔false
