Energy and Life Quiz

What is metabolism?

• The totality of an organism’s chemical reactions

• The process of cellular respiration

• The breakdown of glucose

• The study of energy transformations

What do catabolic pathways do?

• Consume energy to build complex molecules

• Release energy by breaking down complex molecules

• Transform matter and energy

• Increase the entropy of the universe

What is the first law of thermodynamics?

• Energy can be created and destroyed

• The energy of the universe is constant

• Energy cannot be transferred

• Entropy always decreases

What happens during every energy transfer or transformation?

• Some energy is lost as heat

• Energy is created

• Entropy decreases

• Energy is conserved

What is free energy?

• Energy that can do work

• Energy that is lost

• Energy that is created

• Energy that is transformed

What is an exergonic reaction?

• A reaction that absorbs free energy

• A reaction that proceeds with a net release of free energy

• A reaction that requires energy input

• A reaction that is nonspontaneous

What is an endergonic reaction?

• A reaction that absorbs free energy

• A reaction that releases free energy

• A reaction that is spontaneous

• A reaction that is irreversible

What is a defining feature of life regarding metabolism?

What are the three main kinds of work a cell does?

What is ATP composed of?