Review the experiments by Kohler and Lipton described in Fig. 9.5. What is the key difference between blood serum and blood plasma that affects their ability to help fibroblasts grow in culture?
A. Serum contains more platelet cells than
plasma, and platelet cells promote cell
growth.
B. Molecules found in serum promote cell
growth; these molecules are not found in
plasma.
C. Plasma contains more platelet cells than
serum, and platelet cells inhibit cell growth.
D. Molecules found in plasma inhibit cell
growth; these molecules are not found in
serum.
B
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________ is a process by which microorganisms or other particles are coated by serum components, preparing them for recognition and ingestion by phagocytic cells.
Fill in the blank(s) with the appropriate word(s).
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Indicate whether the statement is true or false.
Which of the following statements is correct regarding archaea cells?
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