2260e CS3 Lactose Intolerance (2).docx

Now i wonder if im lactose intolerant i once had

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Now I wonder if I’m lactose intolerant. I once had really bad stomach ache when I ate ice cream. Maybe that’s why? If we go to her office, we could try to participate in the trial and if we ask nicely, she might give us the data. Wouldn’t it be nice to know for sure if you are lactose intolerant? Xiao-Ma: Yes, I would love that! Sanjeet: And you know what’s interesting—when I was a baby, I didn’t have these issues but I was able to digest milk just fine as I was breastfed. Chris: Wow that’s fascinating—so as a baby you probably did produce the lactase enzyme and, if you are right, then your body at some point just stopped making it. Suddenly biology is starting to be more interesting... Esiankiki: Well, that would explain why my mom calls people who can eat dairy without problems “lactase persistent.” I never really understood what she meant by that. She probably means that the production of lactase enzyme persists in those individuals when they are adults. Let’s go and do that blood test; I’m really curious now. Here are the results that the group of friends obtained from Esiankiki’s mother. Each of them had to drink a liquid that contains lactose. At the time the liquid was consumed, a physician assistant took a blood glucose measurement and repeated this every 30 minutes for two hours. Questions 10. Plot the results from the five individuals in the graph below. Make sure to include a legend for your graph. The physician assistant has already plotted one individual’s data. Blood Glucose after Drinking Milk Minutes after drinking milk: Blood glucose (mg/dL) 0 30 60 90 12 0 Björn 11 7 128 146 16 0 15 2 Chris 97 111 135 15 4 14 3 Xiao- Ma 96 99 105 10 1 98 Esianki 10 116 129 14 13
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NATIONAL CENTER FOR CASE STUDY TEACHING IN SCIENCE “I Scream for Ice Cream” by Sellami, Vemu, & Morris, modified by C Lamey 2019 Page 6 11. Can you divide the group of individuals into two groups based on this data? If so, what are the groups and who would belong into each group: 12. According to this data and your grouping, who of the groups are probably lactase persistent individuals? 13. Does the data from the blood glucose measurement match what you had heard from the individuals during their conversation on being able to eat ice-cream?
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