DRAW IT Using a series of arrows, draw the branched metabolicreaction pathway described by the following statements, andthen answer the question at the end. Use red arrows and minussigns to indicate inhibition.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 inthe cell in high concentrations?(A) L S M(B) M S O(C) L S N(D) O S P

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Asked Mar 24, 2020
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DRAW IT Using a series of arrows, draw the branched metabolic
reaction pathway described by the following statements, and
then answer the question at the end. Use red arrows and minus
signs to indicate inhibition.
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 S M
(B) M S O
(C) L S N
(D) O S P

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Expert Answer

Introduction

Metabolic pathways are series of chemical reactions that occur in a cell. In most of the metabolic pathways, the product formed by an enzyme acts as substrate for another enzyme.

Given data:

The branched metabolic pathway is described by following statements:

  • 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.

 

Correct answer:

If both Q and S were present in the cell at high concentration, then L → N reaction will p...

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