Insulin Extracted from Animals

Q. What is the one main reason that made extraction of insulin from animals ineffective

1. Not all animals produce insulin
2. Amount of insulin from one animal was in micrograms
3. Animals produce less amount of insulin
4. Animal insulin was not effective in humans

Q.

what is meant by SLAUGHTERED cattle; from where insulin was extracted?

Q. In 1921, Banting and Best isolated insulin from the pancreas of:

1. Pig
2. Calves
3. Dog
4. Rabbit

Q. What were the problems with extraction of insulin from animals?

1. The insulin from animals does not work for humans
2. Efficiency of animal insulin is less
3. Extraction of Animal insulin is very expensive
4. The amount of insulin extracted from a single animal was not sufficient to meet the demand of insulin