Lecture 1

Question 1

Anabolic pathways example

Answer 1

Synthesize Biomolecules

Question 2

Catabolic pathway

Answer 2

Produce energy

Question 3

Delta G

Answer 3

Dynamics of a biochemical reaction

Question 4

Delta G = 0

Answer 4

Equilibrium

Question 5

Delta G < 0

Answer 5

Spontaneous, exergonic

Question 6

Delta G > 0

Answer 6

Non-spontaneous, endergonic

Question 7

Keq = 1 means what

Answer 7

Delta G = 0

Rxn at equilibrium

Question 8

Keq > 1 means what

Answer 8

Delta G < 0,

Rxn spontaneous, will proceed to the right

Question 9

Keq < 1 means what

Answer 9

Delta G > 0, rxn is not spontaneous, will proceed left

Question 10

What is Keq?

Answer 10

Ratio of products to reactants

[C][D]/[A][B]

Question 11

What bonds are broken in ATP

Answer 11

Anhydride and phosphoric acid bonds

Question 12

Le Chatelier’s principle

Answer 12

Altering the concentration of reactants or products can change the direction of the rxn

Question 13

Addition/subtraction rxn

Answer 13

Transfer of an atom to a multiple bond or elimination of an atom to form a multiple bond

Question 14

Oxidation-reduction

Answer 14

Transfer of an electron from one molecule to another

Question 15

Acid-Base

Answer 15

Involve molecules that donate protons and accept protons (acids and bases)

Question 16

Buffering capacity of acid conjugate base optimal when?

Answer 16

pH = pKa