Mr. duarte, now age 32, was diagnosed with diabetes mellitus when he was 14 years old. he takes insulin in the morning and the evening. despite adjustments in his insulin dosage over the years, he has had difficulty maintaining a normal blood glucose range and has been hospitalized several times for ketoacidosis and hypoglycemia. mr. duarte suffers from which type of diabetes?

 Typed 2 diabetes; because plasma glucose molecules are retained in the blood and  not able to enter     the cells.

Explanation:

He suffered from type 2 diabetes because,  the ketoacidosis was due to  breakdown of fats in the liver  due to low glucose in the cells, while the hypoglycemia was due to   retention of  plasma glucose in the blood instead of entering the cells.

the answer is b.) hydrogen bonds between bases.