11. Myoglobin's secondary structure is primarily composed of________.(A)parallel B-sheets(B)antiparallel B-sheets(C)a-helices(D)2-loops(E) polyproline helices

21. Which of the following statements about the pentose phosphate pathway is correct?(A)It generates 36 mol of ATP per mole of glucose consumed.(B)It generates 6 moles of CO2 for each mole of glucose consumed(C)It is a reductive pathway; it consumes NADH.(D)It is present in plants, but not in animals.(E) It provides precursors for the synthesis of nucleotides.

11. Myoglobin's secondary structure is primarily composed of________.

(A)parallel B-sheets

(B)antiparallel B-sheets

(C)a-helices

(D)2-loops

(E) polyproline helices

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