Initial attempts to culture cells demonstrated that blood serum but not blood plasma provided factors that increased the viability and proliferation of the cultured cells
What will be an ideal response?
Answer: The difference between blood plasma and serum is that serum is what remains when a clot forms and is removed from the plasma. During the clotting process, platelets are activated to secrete growth factors such as PDGF, which activates fibroblast RTK receptors to stimulate cell growth and division.
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The term acute urethral syndrome is used to describe a syndrome of symptoms that include:
a. greater than 105 colony-forming units of bacteria per milliliter (CFU/mL) of urine, dysuria, and frequent urination. b. dysuria, frequency, and urgency but a specimen yielding fewer organisms than 105 CFU/mL urine on culture. c. fever and flank pain, dysuria, vomiting, diarrhea, chills, increased heart rate, and lower abdominal pain. d. dysuria, frequency and urgency along with tenderness and pain over the area of the bladder.
Molecular studies suggest microsporidia appear to be most closely related to members of which fungal
phylum?
a. Glomeromycota b. Basidiomycota c. Chytridiomycota d. Zygomycota e. Ascomycota
Cell cleavage during embryonic development in ducks is
A. impossible. B. through the entire egg. C. meroblastic. D. holoblastic. E. complete.
The condition called (conjunctivitis/keratitis/trachoma) is the result of infection of the cornea
What will be an ideal response?