Our November 23rd Question of the week quizzed test takers on the Nobel Prize insulin. 34% of respondents, chose the best answer. We are excited to share this info about the discovery of insulin with you.

Before we start though, if you don’t want any spoilers and haven’t tried the question yet, you can answer below: Answer Question

Question:

In 1923, the Nobel Prize in Physiology or Medicine was awarded for the discovery of insulin. 

Which group of scientists were the recipients of the award?

Answer Choices:

• Dr. Banting and Dr. Best
• Dr. Collip, Dr. Banting and Dr. Best
• Dr. Banting, Dr. Collip, Dr. Macleod, Dr. Best
• Dr. Banting and Dr. Macleod

---

As shown above, the most common choice was option 3, the second most common answer was option 2, then option 4, and finally option 1.

---

Discovery of Insulin Nobel Prize 1923

The Nobel Prize in Physiology or Medicine 1923 was awarded jointly to Frederick Grant Banting and John James Rickard Macleod “for the discovery of insulin.”

According to the summary at the Nobel Prize Website – Previous doctors realized that diabetes is caused by a lack of insulin, which is formed in parts of the pancreas but could not prove it. Frederick Banting suspected that another substance formed in the pancreas, trypsin, broke down the insulin.

In John MacLeod’s laboratory in 1921, Frederick Banting and Charles Best treated dogs so that they no longer produced trypsin. Insulin could then be extracted and used to treat diabetes. A short while later, Dr. Collip made a breakthrough in purifying the extract, using alcohol in slightly over 90 percent concentration to precipitate out the active ingredient (insulin).

Although Dr. Banting, Dr. Collip, Dr. Macleod, and Dr. Best were all involved in the discovery of insulin, only Dr. Banting and the lab director, Dr. Macleod received the official Nobel prize for Medicine.

---

Getting to the Best Answer

Answer 1 is incorrect. 26.73% chose this answer, “Dr. Banting and Dr. Best.” Credited for their experiments on dogs at the University of Toronto in 1921 that eventually led to the discovery of insulin.

Answer 2 is incorrect. 19.82% of you chose this answer, “Dr. Collip, Dr. Banting, and Dr. Best”. Although Dr. Collip made a breakthrough in purifying the extract, using alcohol in slightly over 90 percent concentration to precipitate out the active ingredient (insulin), he, along with Best, was not recognized with a Nobel Prize.

Answer 3 is incorrect. 19.45% of respondents chose this answer, “Dr. Banting, Dr. Collip, Dr. Macleod, Dr. Best” All four of these physicians played a major part in the discovery and availability of insulin, but only Dr. Banting and Dr. Maccleod were awarded the Nobel prize.

Finally, Answer 4 is correct. 34% chose this answer, “Dr. Banting and Dr. Macleod” YES, GREAT JOB.

The Nobel Prize in Physiology or Medicine 1923 was awarded jointly to Frederick Grant Banting and John James Rickard Macleod “for the discovery of insulin.” According to the summary at the Nobel Prize Website – In John MacLeod’s laboratory in 1921, Frederick Banting and Charles Best treated dogs so that they no longer produced trypsin. Insulin could then be extracted and used to treat diabetes.

We hope you appreciate this week’s rationale! Thank you so much for taking the time to answer our Question of the Week and participate in this fun learning activity!

---

Want more practice questions? Enroll in our

Test Taking Practice Exam Toolkit Webinar
20 Sample Practice Questions

You are invited to join Coach Beverly for this FREE Webinar. And, if you want to have access to an additional 220+ sample practice online questions, you can purchase the complete Test Taking Toolkit.

For many of us, taking the certification exam is a nerve-wracking process.

During this webinar, Coach Beverly will help you transform your nervousness into focused energy that will help you succeed. She will provide test-taking tips based on her experience taking the certification exam six times.

2 Ways to Join Test Taking Webinar

Watch Webinar for FREE

This includes a review of 20 sample test questions with test-taking strategies. This does not include access to the recorded webinar or the practice questions.

Purchase for $49

This includes access to the recorded version of this webinar on your Online University Student Portal.

Plus, the Test Taking Toolkit provides you with over 220 sample online practice questions, simulating the exam experience. A perfect way to assess your knowledge and create a focused study plan, while increasing your test-taking confidence.

Don’t worry if you can’t make it live.
Your registration guarantees access to the recorded version.

---

Sign up for Diabetes Blog Bytes – we post one daily Blog Byte from Monday to Friday. And of course, Tuesday is our Question of the Week. It’s Informative and FREE!  Sign up below!

[yikes-mailchimp form=”1″]

Accreditation: Diabetes Education Services is an approved provider by the California Board of Registered Nursing, Provider 12640, and Commission on Dietetic Registration (CDR), Provider DI002. Since these programs are approved by the CDR it satisfies the CE requirements for the CDCES regardless of your profession.*

The use of DES products does not guarantee the successful passage of the CDCES exam. CBDCE does not endorse any preparatory or review materials for the CDCES exam, except for those published by CBDCE.