Catechol-O-methyltransferase (COMT) is the main enzyme that metabolizes the drug ________ in the blood
A) acetylcholine
B) dopamine
C) GABA
D) levodopa
Answer: D
A) Acetylcholine is metabolized by cholinesterase, and it is a neurotransmitter, not a drug.
B) Dopamine is a neurotransmitter, not a drug.
C) GABA is a neurotransmitter, not a drug.
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Answer the following statements true (T) or false (F)
1. African American men have an increased risk of prostate cancer compared with other populations. 2. Unprotected sex is a risk factor for cervical cancer. 3. Uterine cancer mostly affects women under the age of 40. 4. Exposure to ultraviolet radiation is the primary cause of skin cancers.
Variola virus, the causative agent of small pox, produces soluble TNF receptors. What advantage does the production of a TNF receptor have for avoiding immune response?
A. TNF represents a family of soluble cytokines. By producing soluble receptors that bind cytokines, then the cytokine effector response is eliminated and only a limited immune response will occur. B. TNF receptors bind to cells of the immune system and prevent the release of cytokines. C. TNF receptors block transcription within infected cells so that new virus particles cannot be made. D. TNF receptors bind to TC cells, preventing lysis of infected cells. E. TNF receptors allow an infected cell to become infected by more than one variola virion (virus particle).
Which diagnostic procedure could be used to determine whether the uterus and uterine tubes are open to a dye?
A) culdoscopy B) hysterosalpingography C) pelvic ultrasonography D) laparoscopy
Shimea is thinking of becoming a member of a health club. Which of the following would NOT be considered a sound recommendation before she joins a facility?
A. She should join a club that has frequent membership promotions because she'll get the best value for her dollar. B. She should ask for a one-day-free trial workout. C. She should make sure the facility is certified by an approved trade association. D. She should choose a club that has the programs and times to meet her needs.