Reference no: EM132579411
Listed below is a sequence of substances in the cell (A, B ,C , D, E, F and G), and the enzymes (1,2, 3, 4 and 5) needed to convert them to the next substance in the sequence. Since each substance has a use in the cell, it is not immediately converted to the next substance and so each compound can be detected in this system.
A ----1-----> B ----2----> C ----3----> D ----4----> E ----5-----> F ---6--->G
In order to study this multi-enzyme system, radioactively labelled substance A was added to the cell. The cell was studied in an attempt to locate the radioactive label in any of the other
substances. In an untreated cell, adding labelled-A will result in high levels of labelled-G with low levels of labelled-B, C, D, E and F. If chemical 'R' is added: low levels of labeled-B; very low levels of labeled-C; high levels of labeled-D only are found. If labelled-E is then added, high levels of labelled-F and low levels of labelled-G are detected.
Explain the effect of chemical 'R' on EACH of enzymes 1, 2, 3, 4, 5 and 6.
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