Cell Energy Part I

Define energy.

• The ability to cause a change or do work.
• The energy of motion.
• Stored energy, has the ability to do work.
• The measurement of randomness or disorder

Define kinetic energy.

• The energy of motion.
• The ability to cause a change or do work.
• Stored energy, has the ability to do work.
• The measurement of randomness or disorder

Define potential energy.

• Stored energy, has the ability to do work.
• The energy of motion.
• The ability to cause a change or do work.
• The measurement of randomness or disorder.

What is the 1ˢᵗ law of thermodynamics?

• Law of conservation of energy, energy cannot be created or destroyed. The total amount of energy and matter in the universe is constant.
• Energy cannot be converted from one form to another without the loss of some usable energy.
• The measurement of randomness or disorder.  Over time all things go from order to disorder.
• The ability to cause a change or do work.

What is the 2ⁿᵈ law of thermodynamics?

• Energy cannot be converted from one form to another without the loss of some usable energy.
• Law of conservation of energy, energy cannot be created or destroyed. The total amount of energy and matter in the universe is constant.
• The measurement of randomness or disorder.  Over time all things go from order to disorder.
• The ability to cause a change or do work.

In the combustion reaction of a car motor, not all of the chemical energy in the gasoline is converted to mechanical energy to move the car; a lot of the chemical energy is converted to heat. What is this an example of?

• 2nd Law of Thermodynamics.
• 1st Law of Thermodynamics.
• Entropy
• Potential Energy

It is the measurement of randomness or disorder.  Over time all things go from order to disorder.

• Entropy
• 1st Law of Thermodynamics.
• 2nd Law of Thermodynamics.
• 3rd Law of Thermodynamics.

Once you clean your room and then stop cleaning it will progress from clean to messy again.  What is this an example of?

• Entropy
• 1st Law of Thermodynamics.
• 2nd Law of Thermodynamics.
• Kinetic Energy

To keep cell entropy low, maintain life functions, and keep cells functioning.

• Why living organisms need energy.
• Definition of cell metabolism.
• 3rd law of Thermodynamics
• The function of enzymes.

Where do almost all living organisms, directly or indirectly, get their energy?

• The Sun’s light energy.
• Water
• The air
• From consuming other living organisms.