Connections Between Thermodynamics, Photosynthesis, and Cell Respiration

What does the first law of thermodynamics state?

• Energy can be created and destroyed.

• Energy can be transformed from one form to another.

• Energy is always lost as heat.

• Energy is only found in living organisms.

According to the second law of thermodynamics, what happens to energy during transformations?

• It becomes more ordered.

• It becomes less ordered and less usable.

• It is completely lost.

• It remains in its original form.

What is the most chaotic form of energy?

• Mechanical energy.

• Heat energy.

• Light energy.

• Chemical energy.

What is entropy a measure of?

• Order.

• Energy.

• Chaos.

• Matter.

Where is the energy stored in a glucose molecule?

• In the bonds between atoms.

• In the carbon atoms.

• In the oxygen atoms.

• In the hydrogen atoms.

What is required for plants to transform light energy into chemical energy during photosynthesis?

• Only CO2.

• Only light energy.

• Light energy and water.

• Light energy, water, and CO2.

What is the end result of cell respiration?

• Production of glucose.

• Release of heat, CO2, and water.

• Absorption of light energy.

• Formation of new cells.

What happens when glucose is burned instead of undergoing cell respiration?

• It produces heat and light.

• It produces water and CO2.

• It produces only heat.

• It produces only light.

How does energy flow through the ecosystem according to the video?

• Energy is destroyed after use.

• Energy is constantly created within the ecosystem.

• Energy flows in a one-way system and leaves as heat.

• Energy cycles within the ecosystem.

What remains constant on the planet according to the video?

• The amount of energy.

• The amount of matter.

• The amount of light.

• The amount of heat.