Carbonic anhydrase is necessary for carbon dioxide transport
Indicate whether the statement is true or false
F
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Explain the differences among the terms paracrine, autocrine, hormone, and cytokine.
What will be an ideal response?
Which of the following statements regarding major histocompatibility proteins (MHCs) is TRUE?
A. Class I MHCs are found on all cells of the body except erythrocytes. B. Class II MHCs are normally found in the cell membranes of bacteria. C. Cytotoxic T cells require class II MHCs to recognize foreign antigens. D. All humans have identical sets of MHC proteins. E. MHC proteins are the same thing as antibodies.
Answer these questions about chromosome structure. What does "D" represent?
A. chromosome B. proteins C. chromatin D. centromere E. chromatid
Circulating hormones are mostly taken up and degraded by the ________ and the ________
A) blood; kidneys B) spleen; kidneys C) liver; kidneys D) liver; spleen E) adrenal glands; intestines