You have recently identified a molecule you believe to be a signaling molecule associated with signal transduction
All you know about this molecule is that it is hydrophilic; therefore, you expect it to interact with a receptor ____.
a. on the cell surface
b. within the cytoplasm of the cell
c. in the nucleus of the cell
d. on the cytoplasmic surface of the plasma membrane
e. associated with the endoplasmic reticulum
ANSWER: a
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Phosphorus may be abundant in soils but may also be in availability to the plant.
A. excessive B. bound to nitrogen C. limited D. tightly bound E. absorbed
A patient is diagnosed with a severe intestinal disease caused by E. histolytica. Which of the following treatments should be administered?
a. Diloxanide furoate b. Metronidazole c. Metronidazole plus iodoquinol d. Iodoquinol and diloxanide furoate
The warming action on Earth's atmosphere is referred to as ____
a. respiration accumulation b. the greenhouse effect c. the smog problem d. the blanket phenomenon e. ozone depletion
The kidneys perform all of the following functions EXCEPT ____
a. renin production b. removal of wastes c. regulation of fluid volume d. activation of vitamin A e. stimulation of red blood cell production