if an enzyme-catalyzed reaction has a velocity of 2 mm/min and a vmax of 10 mm/min when the substrate concentration is 0.5 mm, what is the km?

Answers

Answer 1

The Michaelis-Menten equation is used to describe the rate of enzyme-catalyzed reactions as a function of substrate concentration.

The equation is given by:

velocity = (Vmax × substrate concentration) / (Km + substrate concentration)

Where Vmax is the maximum velocity of the reaction and Km is the Michaelis constant, which is a measure of the substrate concentration required for the reaction to reach half of its maximum velocity (Vmax/2).

Given that the velocity of the reaction is 2 mm/min at a substrate concentration of 0.5 mm and a Vmax of 10 mm/min, we can use the Michaelis-Menten equation to solve for Km:

2 = (10 × 0.5) / (Km + 0.5)

Rearranging and solving for Km:

Km = (10 × 0.5) / 2 - 0.5

Km = 2.5 mm

So the Km for the reaction is 2.5 mm, which represents the substrate concentration required for the reaction to reach half of its maximum velocity (Vmax/2).

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Related Questions

how to remove ink stain on white jeans

Answers

To remove ink stain on white jeans you can rub alcohol, baking soda or lemon juice.

Removing an ink stain from white jeans can be challenging, but there are several methods that can be effective:

Hairspray: Spray a generous amount of hairspray on the stain and let it sit for a few minutes. Then, wash the jeans in cold water. Repeat the process if necessary.

Rubbing alcohol: Soak a cotton ball in rubbing alcohol and dab the stain until it lifts. Wash the jeans in cold water.

Baking soda and hydrogen peroxide: Mix equal parts of baking soda and hydrogen peroxide to form a paste. Apply the paste to the stain and let it sit for 15 minutes. Then, wash the jeans in cold water.

Lemon juice and salt: Mix lemon juice and salt to form a paste. Apply the paste to the stain and let it sit for 10 minutes. Then, wash the jeans in cold water.

It is important to treat the stain as soon as possible for the best results. Before trying any of these methods, test the solution on a small, inconspicuous area of the jeans to ensure that it does not cause discoloration or damage.

If the stain is particularly stubborn, you can also try soaking the jeans in a solution of water and a laundry detergent or oxygen bleach before washing.

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