BIO 353 Quiz 1 with Complete Solutions
Extant - Ans:-cells that exist and are alive currently
extinct - Ans:-dead species, no longer exist
ATP - Ans:-energy commodity of cell, driving force for reactions of life
paramecium - Ans:-swims by multiple rows of cilia that beat in a synchronized patte...
Why are cells small? - Ans:✔✔-At a certain diameter, oxygen and nutrients can't diffuse into interior of
cell, nor can waste products be removed
How do social systems help cells? - Ans:✔✔-They divide up labor by specializing certain cells for special
functions. Form precursors of different tissues.
How does division of labor help cells? - Ans:✔✔-Enables the organism to be more robust, can engage in
many activities
Totipotent embryonic stem cell - Ans:✔✔-Can become an endoderm, mesoder, or ectoderm
endoderm - Ans:✔✔-lung, pancreas
mesoderm - Ans:✔✔-heart muscle, red blood cell
ectoderm - Ans:✔✔-skin, neuron
Induced pluripotent stem cells - Ans:✔✔-adult bone marrow, skin, cord blood, and deciduous teeth
Cell shape is related to ___________ - Ans:✔✔-cell function
Cell type - Ans:✔✔-a means of recognizing the subdivision of labor in the social system of a multicellular
organism (diff phenotype and a diff function of the cell)
Neuron - Ans:✔✔-present in the nervous system of the body, a principle function is to provide pathway
for action potentials used in cell communication
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