An Athlete Doing Push-Ups Performs 650 KJ of Work and Loses

question 83

Multiple Choice

An athlete doing push-ups performs 650 kJ of work and loses 425 kJ of heat. What is the change in the internal energy of the athlete?

• A) -225 kJ
• B) -1075 kJ
• C) 1075 kJ
• D) 225 kJ
• E) 276 kJ

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Definitions:

RBCs

Red Blood Cells, which are essential for transporting oxygen from the lungs to the body's tissues and removing carbon dioxide.

Altitude

The height of an object or point in relation to sea level or ground level.

Oxyhemoglobin

The form of hemoglobin bound to oxygen, responsible for transporting oxygen from the lungs to the body's tissues.

Deoxyhemoglobin

Hemoglobin without oxygen bound to it.