Metabolic Energy

Question 1

anabolic

Answer 1

something is being made - small parts made into big parts - this requires energy - reductive

Question 2

catabolic

Answer 2

something is being broken down - big parts broken into small parts - this releases energy - oxidative

Question 3

ATP

Answer 3

Energy used and created by cells - generated by catabolic processes

Question 4

Where does all energy come from?

Answer 4

Originally comes from SUN

Question 5

Measurement of Energy available to do work is measured by what?

Answer 5

Gibbs free Energy

Question 6

Gibbs equation?

Answer 6

(delta)G = (delta)G^o’ + RTln([products]/[reactants])

Question 7

Difference between (delta)G and (delta)G^o’?

Answer 7

(delta) G^o’ is a measure under standard conditions - it is a constant
(detla) G relates to any conditions and caries as these conditions are changed

Question 8

For A <=> B, if (delta)G is (-)

Answer 8

then A—>B is favored

Question 9

For A <=> B, if (delta)G is (+)

Answer 9

then A

Question 10

For A <=> B, if (delta)G is (0)

Answer 10

Then A—>B and A

Question 11

Why is ATP a course of energy?

Answer 11

Because the (delta)G of the hydrolysis reaction is negative and releases much energy.

Question 12

Oxidation state

Answer 12

related to available energy. Higher oxidation state, less energy that can be obtained.

Question 13

electron carriers

Answer 13

NAD+/NADH and FAD/FADH2, when a biological molecule is oxidized, electrons are given in parts to their NAD+ or FAD, thus forming NADH or FADH2.

Question 14

molecules with high energy

Answer 14

difficult for cells to synthesize and often require oxidative or energy coupled reactions to make