Question

Given below are two statements :
Statement I : Insulin was discovered by Banting and Best in 1921.
Statement II : Insulin controls the process of making glycogen from glucose.
In the light of the above statements, choose the most appropriate answer from the options given below :

• A. Both Statement I and Statement II are correct
• B. Both Statement I and Statement II are incorrect
• C. Statement I is correct but Statement II is incorrect
• D. Statement I is incorrect but Statement II is correct

Hint:

Insulin lowers blood glucose (Glycogenesis), whereas Glucagon raises it (Glycogenolysis). They act as a "lock and key" system for blood sugar.

Answer 1

The Correct Option is A

Step 1: Understanding the Concept:
This question involves history of medicine and human physiology specifically related to hormones and metabolism.
Step 2: Detailed Explanation:
1. Analysis of Statement I: Frederick Banting and Charles Best (along with Macleod and Collip) successfully isolated insulin from a dog's pancreas at the University of Toronto in 1921. This statement is correct.
2. Analysis of Statement II: Insulin is a hormone that regulates blood sugar levels. One of its primary roles is to promote glycogenesis—the conversion of excess glucose into glycogen for storage in the liver and muscles. Thus, it "controls the process of making glycogen from glucose". This statement is also correct.
Step 3: Final Answer:
Both Statement I and Statement II are scientifically and historically accurate.