Which of the following processes produces the most ATP per molecule of glucose oxidized?
A) aerobic respiration
B) alcoholic fermentation
C) lactic acid fermentation
Answer: A
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Which of the following act as pain-signaling molecules?
a. substance P b. morphine c. endorphins d. histamine and prostaglandins e. dopamine
Four of the five choices listed below are associated
with the theory of dosage compensation. Select the exception. a. ABC model b. X inactivation c. methylation d. XIST gene e. RNA
A researcher is working to generate a new cancer drug. Thus far, he has identified a compound that can reduce the size of tumors in the lung. However, in order for the drug to work, the lung tumor has to be small. In addition, the tumor cannot have metastasized (spread to other areas of the body). Furthermore, he knows that the drug acts to prohibit the signaling from one tumor cell to another tumor cell. Given the above information, this new drug prohibits:
A. paracrine signaling between tumor cells. B. autocrine signaling between tumor cells. C. synaptic signaling between tumor cells. D. endocrine signaling between tumor cells.
Which clinical feature is a common finding for infants with trisomy 21, trisomy 18, and trisomy 13?
A. Rocker bottom feet B. Single palmar crease C. Small, close-set eyes D. Cleft lip (with or without cleft palate)