Question

name(s): period: date: lunch total amount (g) digestion rate (longest rate only) absorption rate (total g / absorp. rate) time in large intestine total time (hours) carbohydrates 550 1 hr 9.17 36 hrs 46.17 proteins 100 2.1 hrs 39.46 62.58 dinner carbohydrates 250 1 hr 4.17 36 hrs 41.17 proteins 130 4 hr 70.14 110.14 dessert carbohydrates 140 1.5 hrs 3.17 36 hrs 39.17 proteins 0 0 0 0 b. which meal took the longest to digest? why? c. which meal took the shortest time to digest? why? d. what is actually occurring to carbohydrates and proteins during digestion? e. if the meal was eaten on monday, what day and time would the dessert be eliminated from the body? resources & references - niddk 2008 your digestive system and how it works. national digestive diseases information clearinghouse. nih publication no. 08 - 2681. www.digestive.niddk.nih.gov. - wyatt 2005. western kentucky university, bio 113 nutrition. https://pocweb.wku.edu/courses/biol115/wyatt/nutrition/nutrition.asp

Explanation:

Step1: Identify total digestion times for each meal

Lunch total time: 62.58 hours, Dinner total time: 110.14 hours, Dessert total time: 39.17 hours

Step2: Determine longest - digesting meal

Dinner took the longest to digest (110.14 hours) because it has a high - protein content (130 g with a 4 - hour digestion rate for proteins) and a significant amount of carbohydrates (250 g).

Step3: Determine shortest - digesting meal

Dessert took the shortest time to digest (39.17 hours) as it has only carbohydrates (140 g) and no proteins, with a relatively fast digestion rate of 1.5 hours for carbohydrates.

Step4: Explain digestion of carbohydrates and proteins

During digestion, carbohydrates are broken down into simple sugars by enzymes like amylase. Proteins are broken down into amino acids by proteases. The body absorbs these nutrients through the intestinal wall.

Step5: Calculate elimination time for dessert

If the meal was eaten on Monday, 39.17 hours is 1 day and 15.17 hours. 15.17 hours is 15 hours and 10.2 minutes (0.17*60 = 10.2). So the dessert would be eliminated on Tuesday at 3:10 PM (assuming the meal was eaten at 12:00 PM on Monday).

Answer:

b. Dinner took the longest to digest because of its high - protein and carbohydrate content.
c. Dessert took the shortest time to digest as it has only carbohydrates and no proteins with a fast digestion rate.
d. Carbohydrates are broken down into simple sugars and proteins into amino acids during digestion and then absorbed.
e. The dessert would be eliminated on Tuesday at 3:10 PM (assuming the meal was eaten at 12:00 PM on Monday).