Question: which of the following is the branch of chem concerned with energy changes?

Answer: - thermodynamics

Question: work in the cell or in the physical world can only be done with expenditure of ____ it is defined as the capacity to do work

Answer: - energy

Question: in broad terms, energy can exist in 2 states: ____ energy and ___ energy

Answer: - kinetic

• potential

• Question: with very few exceptions, all energy that enters biological systems ultimately comes from the ____

• Answer: - sun

• Question: a fraction of the energy from the sun is captured by plants, algae, and some bacteria through the process of ___

• Answer: -photosynthesis