Chapter 2: Cell Structure and Function

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Part A · Multiple choice

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Question 1 · 2.1

A liver cell breaks down large amounts of fatty acids, which produces toxic hydrogen peroxide. In this cell's peroxisomes, catalase both converts hydrogen peroxide to water and oxygen and uses hydrogen peroxide to break down alcohol. A drug blocks catalase. Which outcome would you most expect?

A.Hydrogen peroxide builds up in the peroxisomes, and peroxisomal alcohol breakdown slowsB.Hydrogen peroxide builds up in the peroxisomes, and peroxisomal alcohol breakdown speeds up because more peroxide is availableC.Peroxisomes stop digesting fatty acids, so no hydrogen peroxide is madeD.Fatty acids build up in the lysosomes, because the lysosomes lose their digestive enzymes

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