Runners exercising near busy roads in high traffic areas mig…

Runners exercising near busy roads in high traffic areas might breathe in enough carbon monoxide to affect their cellular metabolism. Like cyanide, carbon monoxide prevents electrons from bonding to oxygen at the end of the electron transport chain.   Explain why breathing in carbon monoxide would be especially harmful during intense exercise such as running. As part of your answer, please discuss the importance and roles of ATP, O2 and the electron transport chain.

Insulin is a protein hormone produced by specialized cells i…

Insulin is a protein hormone produced by specialized cells in the pancreas. It is secreted from specialized cells in the pancreas. Based on this information, which path does insulin take out of the cell? Outline the likely pathway through organelles that insulin takes to exit these cells. Start with DNA in the nucleus and end with the hormone being released from the cell. Your story should include words and a labeled diagram, the names of the cell organelles involved in creating the hormone and a brief description about what those organelles do.