Answer the following statements true (T) or false (F)
1. Immunizations cause the person to have a mild case of the disease so that they won't have a severe case later in life.
2. Natural immunity is also called innate immunity.
3. Cytotoxic cells produce antibodies.
4. A hematoma is commonly called a bruise.
5. Plasma and serum are interchangeable words.
1. FALSE
2. TRUE
3. FALSE
4. TRUE
5. FALSE
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Which of the following is TRUE about the C5 convertase?
A. C5 convertase can consist of the membrane-bound components C3b2Bb. B. C5 convertase cleaves C5 into C5a and C5b, with the b chain attached to the pathogen surface and the a chain dissociating away to serve as a potent proinflammatory chemotactic factor. C. C5 convertase is an important player in the production of the MAC. D. All of the above E. None of the above
Nonsexual modes of transmission of STIs include all of the following EXCEPT
A) IV drug use. B) drinking. C) tattoos. D) from a pregnant mother to her fetus.
A disease that begins slowly, progresses over a period of time, and that may resist treatment is a(n)
A) acute disease. B) chronic disease. C) behavioral disease. D) hereditary disease.
Smokers who quit "cold turkey"
A) simply decide to not smoke again. B) belong to support groups. C) get help from a treatment program. D) gradually reduce their dependence on nicotine.