Concept explainers
To draw: The
Given data: The metabolic pathway is described with the help of the following statements:
1. L forms either N or M and M forms O.
2. O will form either R or P, R form S and P will form Q.
3. The reaction from L to M is inhibited by O.
4. The reaction from O to R is inhibited by S and from O to P is inhibited by Q.
The inhibition reaction should be drawn with the help of red colored arrows and a minus sign.
Introduction: The cell possesses an ability to regulate the pathways (metabolic) by controlling the activity of various enzymes. This is done by switching off or on the gene which encodes for particular enzymes. There would be occurrences of chemical chaos, if the metabolic pathways of a cell operate simultaneously, so they are operated distinctly.
To determine: Which of the given reactions from the branched metabolic pathway would prevail, if Q and S will be present in higher concentrations.
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Campbell Biology (11th Edition)
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