Metabolism

Question 1

Potential energy

Answer 1

stored energy

Question 2

kinetic energy

Answer 2

energy of motion

Question 3

1st law of thermodynamics

Answer 3

energy cannot be created or destroyed

Question 4

2nd law of thermodynamics

Answer 4

energy cannot be changed from one form to another without a loss of usable energy

Question 5

entropy

Answer 5

measure of a systems thermal energy per unit temperature that is unavailable for doing useful work

Question 6

trend of entropy in universe

Answer 6

always increasing

Question 7

catabolism

Answer 7

breaking down of molecules

Question 8

anabolism

Answer 8

building of molecules

Question 9

photosynthesis

Answer 9

anabolism

Question 10

cellular respiration

Answer 10

catabolism

Question 11

ATP

Answer 11

cellular energy currency, adenosine triphosphate

Question 12

Why is ATP considered cellular energy currency?

Answer 12

provides readily releasable enrgy

Question 13

Where is the potential energy in ATP

Answer 13

stored in covalent bond between phosphate groups

Question 14

ATP cycle

Answer 14

How a cell regenerates its ATP supply. ADP forms then ATP loses a phosphate, then ATP forms as ADP gains a phosphate group.

Question 15

If ATP is unstable why are we never in danger to run out?

Answer 15

Charges up as needed

Question 16

Enzyme

Answer 16

a type of protein that speeds up chemical reaction

Question 17

How do enzymes work?

Answer 17

they lower the activation energy

Question 18

energy activation

Answer 18

the amount of energy required to start a reaction

Question 19

substrate

Answer 19

what is being acted on or the reaction

Question 20

active site

Answer 20

where the substance binds

Question 21

what kind of factors can affect enzyme activity?

Answer 21

substrate concentration, temperature and pH, denaturation