Question

Respiration is a process where many chemical bonds inside the body break and release energy. This energy is used to perform various activities such as moving muscles. Explain the energy transformation in this process.

A. Chemical energy from broken bonds is transformed into mechanical energy for muscles.
B. Mechanical energy from broken bonds is transformed into chemical energy for muscles.
C. Mechanical energy from broken bonds is transformed into electrical energy for muscles.
D. Heat energy from broken bonds is transformed into electrical energy for muscles.

Answer 1

A

Step-by-step explanation:

Answer 2

Answer: A. Chemical energy from broken bonds is transformed into mechanical energy for muscles.

Step-by-step explanation:

Chemical energy is the energy stored in the bonds of molecules.

Mechanical energy is the energy possessed by a body by virtue of its position and motion.

According to law of conservation of energy, energy remains conserved. It only transforms from one form to another.

When we respire, we inhale oxygen which is used in oxidation of food we eat and thus the chemical energy stored in the bonds of food converts to mechanical energy which is used to perform various activities such as moving muscles.

Thus the energy transformation will be chemical energy from broken bonds is transformed into mechanical energy for muscles.