Exercise 4: Endocrine System Physiology: Activity 2: Plasma Glucose, Insulin, and Diabetes Mellitus Lab Report
Pre-lab Quiz Results
You scored 100% by answering 5 out of 5 questions correctly.
1. Which of the following statements is false?
You correctly answered: d. Insulin is a hormone secreted into the stomach to aid with starch digestion.
2. Which of the following statements is true?
You correctly answered: d. All of these statements are true.
3. A diagnosis of type 1 diabetes mellitus implies that
You correctly answered: b. the pancreas is not producing sufficient insulin.
4. A diagnosis of type 2 diabetes mellitus implies that
You correctly answered: c. the cells of the body are unresponsive to circulating insulin.
5. Glucagon is a hormone
You correctly answered: b. that opposes the action of insulin.
Post-lab Quiz Results
You scored 100% by answering 6 out of 6 questions correctly.
1. A male patient has had successive fasting plasma glucose readings of 115, 110, and 122 mg/dl. The healthcare provider
will inform him that
You correctly answered: c. he appears to have impairment or borderline impairment of insulin-mediated glucose uptake by
his cells.
2. To obtain an accurate spectrophotometric measurement of the glucose concentration in the sample
You correctly answered: d. heparin is added to prevent blood clots.
3. In the spectrophotometric assay used in this experiment, the __________ as the glucose concentration in the sample
increases.
You correctly answered: b. optical density increases
4. A female patient has had successive fasting plasma glucose readings of 130, 140, and 128 mg/dl. The healthcare
provider will inform her that
You correctly answered: a. she has developed diabetes.
5. To maintain plasma glucose homeostasis
You correctly answered: d. insulin-mediated transport of glucose into cells acts as negative feedback when plasma glucose
levels rise.
6. A laboratory technician withdraws a blood sample from a vein in your upper arm knowing that
You correctly answered: b. the plasma glucose concentration will be the same in both the arm vein and the index finger.
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