Imagine you are conducting an experiment on a yeast enzyme known as sucrase. Thi
ID: 203026 • Letter: I
Question
Imagine you are conducting an experiment on a yeast enzyme known as sucrase. This enzyme is used by yeast cells to break the disaccharide sucrose into glucose and fructose. You decide to conduct an experiment to test whether the sucrase enzyme can break down the artificial sweetener sucralose. Sucralose has some similarity to sucrose structure but is different in that three of its hydroxyl groups are missing and replaced with chlorine atoms instead. Will the sucrase enzyme be able to interact with sucralose as a substrate?
Yes, enzymes such as sucrase are not specific for their substrate.
No, an enzyme must have its specific substrate in order to interact with it.
No because sucralose is found in diet foods.
Yes, all enzymes in human cells can interact with artificial sweeteners
A.Yes, enzymes such as sucrase are not specific for their substrate.
B.No, an enzyme must have its specific substrate in order to interact with it.
C.No because sucralose is found in diet foods.
D.Yes, all enzymes in human cells can interact with artificial sweeteners
Explanation / Answer
B. No, an enzyme must have its specific substrate in order to interact with it.
Sucralose is excreted in urine unchanged. It is not acted upon by any enzymes.
Sucrase acts on sucrose only.The enzyme is specific not only to the substrate but also to its optical configuration.
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