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ASU Bio 181 Exam 1 Questions and Answers
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- ASU Bio 181 Exam 1 Questions And Answers
ASU Bio 181 Exam 1 Questions and Answers
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ASU Bio 181 Exam 1 Questions andAnswers
The association of ribosomes with _____ invaginations would support the
_____ theory. - -membrane, endomembrane
-After a cell is pancake shaped in a cell culture dish, the order of events that
occurs as a cell walks is? - -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. - -true
-T/F In an extant prokaryotic cell the outer boundary of life is the capsule. - -
false
-T/F When cancer cells are crowded by surrounding cells, the cancer cells
become spherical and they can still go through cell division. - -true
-T/F Loss of the cell wall was required for the endomembrane system theory.
- -true
-T/F Fluorescence microscopy is form of light microscopy - -true
-T/F Loss of the cell wall is required for the endosymbiotic theory. - -true
-T/F TEM provides a thin, two-dimensional section of the object being
studied. - -true
-T/F The sytoskeleton enabled the primitive cell to become motile. - -true
-T/F the ancient earth did not contain much oxygen - -true
-A normal cell is _____ and ____ for growth. - -mortal, anchorage dependent
-T/F Ribosomes bound to some of the membrane invaginations in the
endomembrane theory - -true
-T/F the cytoskeleton gave rise to the nuclear envelope - -false
-What limits how big a cell can be? - -the surface area to volume ratio
-T/F DNA in extant prokaryotic cells is circular. - -True
, -Why did Motility improved the fitness of these early cells? - -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. - -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. - -true
-1n order to examine cells which are smaller than can be detected by the
human senses what needs to be used ? - -technology
-A cell that is itself an organism must have a minimum of four needs
presented in lecture - -find food, find shelter, find mate, and reproduce.
-compared to bacteria which of the cell types below are not responsible for
finding food? - -lymphocyte, macrophage, and fibroblast
-T/F In your own mulitcellular body, different cells in your body have a
division of labor between them. - -true
-T/F The paramecium swims by way of using a flagella - -false
-T/F A normal cell is anchorage-dependent for growth and mortal - -true
-what limits the paramecium from acquiring more complex functions? - -
cannot fit anymore biomachinery into its space
-comparing a singled cell eukaryotic organism with a multicellular organism
such as yourself identify the major difference from the list below. - -division
of labor
-in the cell biology what can limit the progress of science - -technology
-T/F a cell that is anchorage-dependent for growth will also exhibit contact
inhibiton. - -true
-explain what limits an individual cell from becoming more complex - -
individual cell have a limit number of biomolecular machines. In a
multicellular organism you get a division of labor between different cell types
so that the whole can do more than the sum of the parts with similar number
of biomolecular machines per cell.
-T/F the contractile vacuole of the paramecium is possibly an evolutionary of
the kidney - -true
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