Study your flashcards anywhere!

Download the official Cram app for free >

  • Shuffle
    Toggle On
    Toggle Off
  • Alphabetize
    Toggle On
    Toggle Off
  • Front First
    Toggle On
    Toggle Off
  • Both Sides
    Toggle On
    Toggle Off
  • Read
    Toggle On
    Toggle Off
Reading...
Front

How to study your flashcards.

Right/Left arrow keys: Navigate between flashcards.right arrow keyleft arrow key

Up/Down arrow keys: Flip the card between the front and back.down keyup key

H key: Show hint (3rd side).h key

A key: Read text to speech.a key

image

Play button

image

Play button

image

Progress

1/41

Click to flip

41 Cards in this Set

  • Front
  • Back
Which of these are characteristics of catabolism?

i)breaking down complex molecules
ii)reducing carbon
iii)using ATP
iv)converging pathways

only i and ii
only i and iii
only i and iv
only iii and iv
only ii and iii
only i and iv
Breaking things down
C
Carbon is reduced, the co factor is oxidized
A
endergonic
A
makes ATP
C
exergonic
C
Carbon is oxidized, cofactors reduced
C
Uses atp to drive reactions
A
takes simple precursors to more complicated
A
converging pathways
C
takes complex mlc to simple mlc
C
diverging pathways
A
What is an autotroph?
They can use CO2 and sunlight to make everything it needs; self sufficient
What is a heterotroph?
Have to get energy by consuming carbon from complex bio molecules and then using them to make energy
Autotrophs also produce energy by
oxidation
Which of these are characteristics of anabolism?

i)breaking down complex molecules
ii)reducing carbon
iii)using ATP
iv)converging pathways

only i and ii
only i and iii
only i and iv
only iii and iv
only ii and iii
only ii and iii
A + B --> C + D

Consider the reaction written here. Which statement is true?

a)A G that is negative means the reaction is at equilibrium.

b)A G that is negative means the reaction will proceed in the direction the reaction is written.

c) A G that is negative means the reaction will proceed in the opposite direction of the way the reaction is written.
b
What is the equation for ?G
?G = ?H- T?S
making bonds ____ heat

breaking bonds ___ heat
releases

requires
a (-) delta H is Fav or not fav
fav
a (+) delta H is fav or not fav
not fav
- delta G is fav or not fav
fav
+ delta G is fav or not fav
not fav
- delta S (less disorder) is fav or not fav
not fav
+ delta S (more disorder) is fav or not fav
fav
When a reaction releases heat, which is true?

1)The reaction is pushed toward a +G.
2)The reaction is pushed toward a -G.
3)This depends on temperature.
4)This has no effect on G.
2
When the reaction has more disorder in the molecules on the product side than on the reactant side, which statement is true?

1)The reaction is pushed toward a +G.
2)The reaction is pushed toward a -G.
3)This depends on temperature.
4)This has no effect on G.
2
G'°= - R T ln [Product]eq/[Reactant]eq

the ln of a number >1 is + or -

the ln of a number <1 is + or -
+

-
What is the sign of the ln of any number >1?

Positive
Negative
No sign (0)
It depends how big the number is.
positive
What is the sign of the ln of any number between 0 and 1?

Positive
Negative
No sign (0)
It depends how small the number is.
Negative
A + B  C + D

G'° = - 686 kcal/mole

1)At equilibrium there would be more of C + D than A + B.
2)At equilibrium there would be more of A + B than C + D.
3)At equilibrium there A + B would equal C + D.
1
A + B  C + D

G = - 686 kcal/mole

1)This reaction is spontaneous in the direction written (left to right).
2)This reaction would proceed opposite the direction written (right to left).
3)This reaction is near equilibrium.
1
Zn(s) + Cu2+(aq)  Zn2+(aq) + Cu(s)

What takes place as this reaction proceeds from left to right?

1)Zn is oxidized, Cu2+ is reduced
2)Cu2+ is oxidized, Zn is reduced
3)Both Zn and Cu2+ are reduced
4)Both Zn and Cu2+ are oxidized
1
Niacin is associated with ____ and riboflavin is associated with ____
NAD and FAD
NAD+ is (ox/red) and NADH + H+ is (ox/red)

NADPH + H+ is (ox/red) and NADPH is (ox/red)

FAD is (ox/red) and FADH2 is (ox/red)
ox, red

red, ox

ox, red
NAD+ is generally used in (catabolism/anabolism) to (accept/donate) e-
catabolism, accept
NADPH + H+ is used to (donate/accept) e- in (catabolism/anabolism)
donate/anabolism
ATP + H2O  ADP + Pi G'° = -7.3 kcal/mol
Glucose-6-Phosphate + H2O  Glucose + Pi

G'° = -3.0 kcal/mol


What is the G'° for this reaction?
ATP + Glucose  ADP + Glucose-6-Phosphate

1)-10.3 kcal/mol
2)+10.3 kcal/mol
3)-4.3 kcal/mol
4)+4.3 kcal/mol
I need help with this!
3
ATP + H2O  ADP + Pi G'° = -7.3 kcal/mol
Phosphoenolpyruvate + H2O  Pyruvate + Pi
G'° = -14.8 kcal/mol


What is the G'° for this reaction?
Phosphoenolpyruvate + ADP  Pyruvate + ATP

1)-7.5 kcal/mol
2)+7.5 kcal/mol
3)-22.1 kcal/mol
4)+22.1 kcal/mol
1
What is the significance of phosphoric anhydride linkages in ATP and how does this relate to metablism
The phosphoanhydride linkages are very high energy bonds, because they have no resonance. they are so important in metabolism because when you break their bonds, a lot of energy is released
what are thioester bonds and they are they important in metabolism?
This bond forms when a thiol joins a COOH. It is important because it is a high energy bond, releases energy and is required for the formation of acetyl CoA. Panthothenic acid builds CoA, this is why it is important to have this in your diet