The Ratio of Kcat/Km for Each of Two Different Substrates

question 5

Multiple Choice

The ratio of kcat/Km for each of two different substrates present in equal concentrations in an enzyme reaction will measure enzyme affinity because

• A)the rates of P formation are given by the values found for each substrate.
• B)the rates of P formation are the same for each substrate.
• C)it is an indication of the formation of ES for each substrate.
• D)All of the above.

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Definitions:

Hot Rocks

Rocks that have been heated by geothermal energy, often found near volcanic areas or geothermal reservoirs.

Hot Spot

A volcanic region thought to be fed by underlying mantle that is anomalously hot compared with the surrounding mantle, often resulting in volcanic islands.

Mantle Material

The rock and substances that make up the mantle, a thick layer between the Earth's crust and outer core.

Rising Plume

A column of hot, buoyant material within the mantle that rises due to convection, potentially leading to volcanic activity at the surface.