Unit Two- Metabolism and Energy

Question 1

what is an anabolic pathway

Answer 1

using energy to build larger molecules (usually a reduction reaction)

Question 2

what is a catabolic pathway

Answer 2

breaking down compounds into smaller molecules to release energy (usually oxidation)

Question 3

what is energy

Answer 3

the capacity/ability to do work

Question 4

what is kinetic energy

Answer 4

energy of motion

Question 5

what is potential energy

Answer 5

stored energy

Question 6

how do molecules transfer energy

Answer 6

through bonds

Question 7

what is activation energy

Answer 7

energy to start a reaction

Question 8

describe exothermic reaction

Answer 8

-release of energy
-catabolic (breaking down)

Question 9

describe endothermic

Answer 9

-intake of energy
-produce larger molecules from smaller subunits

Question 10

what are the two laws of thermodynamics

Answer 10

-energy cannot be created or destroyed, only transferred from one object to another
-the universe tends towards disorder

Question 11

what is entropy

Answer 11

a measure of randomness/disorder

Question 12

what makes a reaction spontaneous

Answer 12

-exothermic
-increase in entropy

Question 13

what makes a reaction non-spontaneous

Answer 13

-endothermic
-decrease in entropy