Question
(e) How does bile help in the digestion of foods? Tick (checkmark) one box. It increases the surface area of fats. It is an enzyme that digests protein. It makes the mathrm(pH) in the small intestine acidic. A student tested different foods for the presence of protein, starch and sugar. (f) Draw one line from each food molecule to the reagent used to test for the food molecule. Food molecule Reagent Protein Benedict's solution Starch Biuret reagent Sugar Iodine solution (g) Give one safety precaution a student should take when using Benedict's qquad qquad
Answer
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Albert
Professional · Tutor for 6 years
Answer
(e) It increases the surface area of fats.(f) Biuret reagent: Protein; Benedict's solution: Sugar; Iodine solution: Starch(g) Handle the heated containers cautiously to prevent burns.
Explanation
(e) In the process of digestion, bile emulsifies fats, thus increasing their surface area and making it easier for lipase enzymes to act upon and break down fats. Therefore, "It increases the surface area of fats" is the correct option. (f) This essentially is a matching task. The recommended reagents for detecting different food compounds are as follows: The Biuret reagent is used for testing the presence of proteins. Iodine solution is used for identifying the presence of starch. Benedict's solution is typically used for identifying reducing sugars. (g) In terms of safety precautions, when using the Benedict's solution, it's notable that this reagent can react with reducing sugars in a hot water bath. Therefore, one typical safety precaution students should adhere to is the careful and safe handling of hot containers after heating.