West Nile virus or herpes virus infection can lead to the dangerous condition of ____
a. epilepsy
b. paralysis
c. encephalitis
d. meningitis
e. multiple sclerosis
ANSWER: c
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Gram-positive cocci in clusters were reported on preliminary direct Gram staining from a sputum specimen. The patient was treated with antibiotics. Following 48 hours of treatment, a secondary specimen was reported as gram-positive rods. The discrepancy in this result is:
a. the patient likely obtained a secondary infection following treatment of the first pathogen. b. the antibiotics are effective and the gram-positive cocci are distorted due to inhibition of growth by the antibiotic. c. the first preliminary Gram stain was erro-neous, and should have been reported as normal microbiota. d. there is no discrepancy.
When ATP levels are high, which enzyme's activity will be directly decreased by feedback inhibition?
a. aconitase b. malate dehydrogenase c. citrate synthase d. isocitrate dehyrogenase e. fumerase
The patient is awake many times during brain surgery. In an operation to remove a brain tumor, Dr. Judson accidentally poked a certain area of the cerebrum, whereupon the patient said, "Why is my arm being tickled?" What area was poked?
A) medulla B) occipital lobe C) primary somatosensory area D) pons
Molecules or regions of molecules that readily interact with water are said to be ________, whereas molecules or regions of molecules that are insoluble in water or do not readily interact with water are said to be ________.
What will be an ideal response?