How are sharks different form fish?

Glucose is a form of sugar found in the blood cells use glucose as a source of energy, but too much or too little can cause serious health issues so, the body uses the hormone insulin to regulate glucose n the blood insulin maintain glucose levels in the blood if blood glucose lovels got very high, what would you expect to see happen to insulin levels?

What's the waste product of electrons and pyruvate combining in fermentation?  

Discuss cell surface transport in the structure of constituents