Homework Answers
41. e) B lymphocytes.
Plasma cells arise from antigen-activated B cells in secondary lymphoid organs such as the spleen and lymph nodes.
The main role of B lymphocytes are production of humoral antibodies such as IgG, IgA, IgM, IgD, IgE.
42. b) Zona glomerulosa, zona fasciculata, zona reticularis.
43. b) individuals with type O blood group have anti-A and anti-B agglutinins.
Individuals with type O blood group have no antigens present on their RBC surface. So, according to Landsteiner's 1st law anti-A and anti-B antibodies should must be present in the blood plasma.
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Human blood types A, B and O are associated with the carbohydrate antigens A, B and H respectively. A and B antigens are caused by an alteration of H antigen. Normally everyone can synthesize H antigen (a cell surface carbohydrate found on red blood cells and other cell types). Some people make A and/or B transferase(s) which converts the H antigen to an A and/or B antigen respectively. The H antigen is produced by a specific fucosyltransferase encoded by the...
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practing samples and not sure if my answers correct.
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Question 3 (2 points) Which of the following statements accurately describes the following reaction? Peptides + Dipeptides Perles Dipepidares > Free amino acids A-A-A A-A A A А A A Enzymatic digestion of proteins in the stomach by enzymes secreted by the pancreas Enzymatic digestion of proteins in the stomach by enzymes such as pepsin Enzymatic digestion of proteins in the small intestine by the enzyme trypsin secreted by the pancreas O two of the choices are correct none of...
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