Which of the following is TRUE regarding the C3 convertase in the classic complement
pathway?
A) Magnesium is required to stabilize the complex.
B) It is incorporated into the membrane attack unit.
C) Its composition is C2bC4a.
D) It is inactivated once it splits a C3 molecule into C3a and C3b.
E) All of the above.
A
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Which of the following provides a report card on the fitness levels of school children?
A. AAHPERD Youth Fitness Test B. Activitygram C. Fitnessgram D. Physical Best E. None of the above
Which of the following statements about chromosomal abnormalities is FALSE?
A. The most common chromosomal abnormality at birth is Down syndrome. B. Both CVS and amniocentesis are done to detect chromosomal abnormalities. C. CVS can be performed at any time before a woman gives birth. D. Amniocentesis can be performed between weeks 14 and 18.
The act of spitting out saliva or coughing up materials from the air passageways leading to the lungs is called ________________________
Fill in the blank(s) with correct word
About how long does the Pass Rx verification reportedly take?
A. 6 seconds B. 12 seconds C. 18 seconds D. 24 seconds