Red blood cells are characterized as having an actin cytoskeleton associated with their plasma membrane. The presence of the membrane cytoskeleton most likely accounts for:
A. the shape of the cell.
B. enhanced gas exchange.
C. the ability of these cells to fit through
narrow capillaries.
D. All of the above statements are correct.
D
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Someone who steps on a sharp nail will quickly lift their foot away. This quick reaction is known as a(n) _____________________
Fill in the blank(s) with correct word
The initial symptoms of bacterial meningitis are the same regardless of the causative agent
Indicate whether this statement is TRUE or FALSE.
Refer to Figure 44-3. A semilunar valve regulates blood flow into which structures?
a. 1 and 2 b. 1 and 5 c. 1 and 7 d. 2 and 7 e. 7 and 11
Which procedure is most associated with unsuccessful transformation and degradation of DNA?
A. Induced transformation with plasmid DNA in noncompetent bacteria. B. Naturally-occurring transformation with DNA fragments in competent bacteria. C. Integration of DNA fragments in competent bacteria following naturally-occurring transformation. D. Addition of DNA fragments from competent bacteria to live, noncompetent bacteria without artificial induction.