C3 Energy, Biosynthesis Flashcards Preview

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Flashcards in C3 Energy, Biosynthesis Deck (23):
1

Two steps of photosynthesis

1. light energy stored as ATP and NADPH, oxygen released.
2. ATP and NADPH used to make sugars.

2

respiration

use oxygen to oxidize organic molecules to produce energy

3

dehydrogenation reactions (reduce/oxidize) carbon

oxidize

4

(oxidation/reduction) of carbon is energetically favorable in cells

oxidation

5

Lowers the activation energy of a specific reation

Enzyme

6

Enzymes (do/do not) influence the equilibrium point of the reaction

do not

7

gibbs free energy equation

dG=dH-TdS

8

An exergonic dG is (favorable/unfavorable)

favorable

9

An endergonic dG is (favorable/unfavorable)

unfavorable

10

exergonic. dG (>/<) 0

exergonic. dG < 0

11

Equilibrium is achieved when the free energy is..

equal to zero

12

How would one move equilibrium toward the product

couple to even more favorable reaction

13

ATP contain two high-energy ? bonds

phosphoanhydride

14

This electron carrier is used in catabolic reactions

NAD+/NADH

15

This electron carrier is used in anabolic reactions

NADP+/NADPH

16

NAD+/NADH is used to drive ? reactions

oxidation

17

NADP+/NADPH is used to drive ? reactions

reduction

18

The synthesis of polysaccharides, proteins, and nucleic acids are all made possible by the hydrolysis of ?

Nucleotide triphosphates

19

Cells are in ?, they are not in equilibrium

steady state

20

sum total of all reactions the cell needs to carry out to survive, grow and reproduce

metabolism

21

How does a cell follow the second law of thermodynamics

Although parts inside the cell have negative entropy and are more organized, the cell releases heat which increases the entropy of the environment.

22

dG depends not only in energy stored in individual molecules, but also ?

in concentration of reactant and product

23

dG=

dG* + RT ln K