Which of the following is mismatched?
A. Acetylcholine; muscle contraction
B. Endorphin; pain perception
C. Norepinephrine; fight-or-flight response
D. Serotonin; sexual function
E. GABA; major inhibitor in the brain
Answer: D
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A. Freeze-fracture allows a cell to be cleaved in between the lipid bilayer, splitting the plasma membrane into two layers. B. Freeze-fracture allows a cell to be cleaved in such a way as to preserve the embedded proteins. C. Freeze-fracture cuts the membrane in protein-sized components for viewing under an electron microscope.
Which of the following did not play a role in the eradication of smallpox?
A. Ease of diagnosis by readily recognized clinical features B. A short period of infectivity C. No known reservoir outside of human hosts D. The availability of effective antiviral agents that block replication E. All of these characteristics played a role in the eradication of smallpox
Explain the difference between benign and malignant tumors
What will be an ideal response?
What are the three principal components of a DNA nucleotide?
What will be an ideal response?