Cells of the innate immune system, such as macrophages, initiate an adaptive immune response due to their
a. phagocytic function.
b. endocytic function.
c. antigen presenting function.
d. antibody presenting function.
Answer: C
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What class of membrane-transport protein is associated with triggering an action potential?
A. a pump protein B. a ligand-gated ion channel C. a voltage-gated ion channel D. a sodium/potassium symporter
What is the main energy source used by the cells?
a. Starch b. Glucose c. Amino acids d. Fatty acids e. Glycogen
Increasing carbon dioxide in the atmosphere is responsible for: a. coral expelling their zooxanthellae
b. production of excess sediments. c. bioerosion. d. oceans becoming more basic.
Endoplasmic reticula are an extension of what
other cellular structure?
a. the cytoskeleton b. flagella c. cilia d. the nuclear envelope e. the plasma membrane