Why is organ transplantation challenging?
A) Organs cannot be grown in the laboratory.
B) Identical twins cannot donate organs to each other by law.
C) T cells from the immune system attack transplanted tissue.
D) To harvest a donor's organs, the donor needs to be dead for at least 24 hours.
C
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A reaction is
(a) a reflex. (b) involuntary. (c) voluntary. (d) both a and b.
A(n) ___________ has been established if more solute is located outside of the cell than inside of the cell.
a. concentration gradient b. diffusion gradient c. active transport gradient d. facilitated gradient
Aminoglycosides act through which of the following mechanisms?
A. inhibition of protein synthesis B. disruption of cell wall synthesis C. inhibition of DNA synthesis D. inhibition of mRNA synthesis E. inhibition of nucleotide synthesis
Borrelia burgdorferi is an unusual bacterium that lacks iron-containing enzymes and proteins and causes (Brill-Zinser/Lyme/RMSF) disease in humans
What will be an ideal response?