Using a Series of Arrows, Draw the Branched Metabolic Reaction

question 36

Multiple Choice

Using a series of arrows, draw the branched metabolic reaction pathway described by the following statements, then answer the question at the end.
∙ L can form either M or N.
∙ M can form O.
∙ O can form either P or R.
∙ P can form Q.
∙ R can form S.
∙ O inhibits the reaction of L to form M.
∙ Q inhibits the reaction of O to form P.
∙ S inhibits the reaction of O to form R.
Which reaction would prevail if both Q and S were present in the cell in high concentrations?

• A)L → M
• B)M → O
• C)L → N
• D)O → P
• E)R → S

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