An antigen is?
A) a molecule recognized as being foreign to the body
B) a molecule that protects cells from viral infection
C) an antibacterial protein
D) a protein that joining together to form a membrane attack complex
Answer: A) a molecule recognized as being foreign to the body
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What is the oxidized form of the most common electron carrier that is needed for both glycolysis and the Krebs cycle?
A. ATP B. FAD C. pyruvate D. NAD+ E. acetyl-CoA
Intestinal parasites can be identified by observing stool samples for the presence of
A) cysts. B) antibodies. C) LPS. D) blood.
Blood pH is kept near a value of 7.3-7.5 because of ____.
A. salts B. buffers C. acids D. bases E. water
Which of these is not a characteristic of Klinefelter syndrome?
A) underdeveloped testes B) long limbs C) low testosterone levels D) XXY genotype E) web of skin between the neck and shoulders