The portals of entry of a pathogen in the human body include all except
A .skin
B. Respiratory tract
C. urogenital system
D .Gastrointestinal system
E. All of the above
Ans: E. All of the above
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Which of the following are examples of biogenic amines?
A. epinephrine and endorphins B. GABA and serotonin C. epinephrine, dopamine, and GABA D. epinephrine, dopamine, and serotonin E. epinephrine, norepinephrine, dopamine, and serotonin
Which of the following processes could result in the net movement of a substance into a cell, if the substance is more concentrated in the cell than in the surroundings?
A) active transport B) facilitated diffusion C) diffusion D) osmosis
You observe a cell under a microscope and you can clearly see a cell wall, a vacuole, and cytoplasmic connections. These cytoplasmic connections must be
A) plasmodesmata. B) desmosomes. C) gap junctions. D) osmotic channels. E) tight junctions.
Which of the following statements concerning genital warts is FALSE?
A. They can be transmitted via fomites. B. They can travel to different locations on the same individual by autoinoculation. C. They can be sexually transmitted. D. The virus may remain latent and cause lesions at a later time. E. The incidence is relatively low because treatment is available.