QUESTION 7 person who is lactose intolerant is una ble to break down the sugar l

Question

QUESTION 7 person who is lactose intolerant is una ble to break down the sugar lactose because of what reason? The small intestine of a lactose intolerant person is aerobic which does not allow for lactose to be broken down lon transporters located in the lining of the small intestine are non-functional and so do not allow for absorption of the sugar lactose O They lack the enzyme lactase which specifically breaks down the sugar lactose Bacteria present in the small intestine do not break down the sugar lactose QUESTION 8 During the fermentation experiment in lab, we saw different rates of fermentation from yeast mixed with different sugar solutions. Which of the following is a plausible hypothesis to explain the results we saw? o a. Sugars break down in water and produce CO2 gas as a result of this hydrolysis O b. Yeasts have specific enzymes which only allow metabolism of certain sugars. O c. The enzymes in yeasts are broken down by contact with any sugar and this decomposition causes formation of Co2 gas O d. Yeasts have enzymes which allow metabolism of all sugars.

Explanation / Answer

7) They lack the enzyme lactase which specifically breaks down lactose.Lactase is normally present in the small intestine

8) Yeasts have specific enzymes which only allow metabolism of certain sugars.

The different rate of action of the enzymes of different sugars leads to the different fermation rates

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