Physioex: Endocrine System Lab Quiz Part 2 (Diabetes)

11 Questions | By Lildrammaqueen | Last updated: Mar 20, 2022 | Total Attempts: 1421

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Questions from pre-lab quiz and post-lab quiz about diabetes.

Questions and Answers

1.

Which of the following statements is false?
- A.
  
  Insulin is a hormone secreted into the stomach to aid with starch digestion.
- B.
  
  Insulin is a hormone secreted from the beta cells of the endocrine of the pancreas.
- C.
  
  Insulin decreases plasma glucose levels.
- D.
  
  Insulin promotes the stores of glucose in the form of glycogen.
2.

Which of the following statements is true?
- A.
  
  Glucose is the primary fuel for nerve cell metabolism.
- B.
  
  Plasma glucose can be converted into glycogen stores in liver and muscle cells.
- C.
  
  Plasma glucose levels are controlled by the opposing actions of insulin and glucagon.
- D.
  
  All of these statements are true.
3.

A diagnosis of type 1 diabetes mellitus implies that
- A.
  
  A person's urine is abnormally deficient in glucose.
- B.
  
  Only type 1 nerve cells are responding to insulin.
- C.
  
  The pancreas is not producing sufficient insulin.
- D.
  
  All cells of the body are unresponsive to insulin.
4.

A diagnosis of type 2 diabetes mellitus implies that
- A.
  
  A person's urine is abnormally deficient in glucose.
- B.
  
  Only type 2 cells are responding to insulin.
- C.
  
  The pancreas is not producing sufficient insulin.
- D.
  
  The cells of the body are unresponsive to circulating insulin.
5.

Glucagon is a hormone
- A.
  
  That opposes the action of insulin.
- B.
  
  Secreted into the stomach to aid with starch digestion.
- C.
  
  Produced by the beta cells of the pancreas.
- D.
  
  That promotes the formation of glycogen
6.

A male patient has had successive fasting plasma glucose readings of 115, 110, and 122 mg/dl. The healthcare provider will inform him that
- A.
  
  He appears to have impairment or borderline impairment of insulin-mediated glucose uptake by his cells.
- B.
  
  He is quite normal and can stop requesting this blood test.
- C.
  
  He needs more fasting plasma glucose because the range of these three values is too large to reach a conclusion.
- D.
  
  He has developed diabetes and needs to adopt lifestyle changes.
7.

To obtain an accurate spectrophotometric measurement of the glucose concentration in the sample
- A.
  
  Barium hydroxide is added to prevent blood clots.
- B.
  
  An enzymatic color reagent is added that digests and, thus, removes blood clots.
- C.
  
  Water is added to dissolve the glucose.
- D.
  
  Heparin is added to prevent blood clots.
8.

In the spectrophotometric assay used in this experiment, the __________ as the glucose concentration in the sample increases.
- A.
  
  Optical density remains constant
- B.
  
  Optical density increases
- C.
  
  Optical density decreases
- D.
  
  Amount of color in the test tube decreases
9.

A female patient has had successive fasting plasma glucose readings of 130, 140, and 128 mg/dl. The healthcare provider will inform her that
- A.
  
  She has specifically developed type 1 diabetes.
- B.
  
  She is making too little glucagon and will need to consider supplements.
- C.
  
  she has developed diabetes.
- D.
  
  She appears to have impairment or borderline impairment of insulin-mediated glucose uptake by her cells.
10.

To maintain plasma glucose homeostasis
- A.
  
  Glucagon-mediated transport of glucose into cells acts as negative feedback when plasma glucose levels rise.
- B.
  
  Cells will become unresponsive to insulin if plasma glucose levels are chronically low.
- C.
  
  insulin-mediated transport of glucose into cells acts as negative feedback when plasma glucose levels rise.
- D.
  
  The pancreas will release insulin and glucagon together in order to offset a rise in plasma glucose.
11.

A laboratory technician withdraws a blood sample from a vein in your upper arm knowing that
- A.
  
  The plasma glucose concentration will be the same in both the arm vein and the index finger.
- B.
  
  The plasma glucose concentration is expected to be lower in the index finger than in the arm vein.
- C.
  
  The plasma glucose concentration in expected to be higher in the arm vein than in the index finger.