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Flashcards in Enzymes And Bioenergetics Deck (31):
1

Essential for function of enzymes

Co factor

2

Describes how reaction velocity varies with substrate concentration

Michaelis- Menten equation

3

Maximal number of substrate molecues converted to product per unit time

Vmax

4

Substrate concentration at which V1 is half the maximal velocity at a particular concentration of enzyme

Km ( Michaelis constant)

5

Factors that affect the rate of reaction

Substrate concentration
Temperature
pH

6

Reciprocal of Michaelis Menten equation

Lineweaver- Burk plot

7

Type of enzyme inhibitor that binds to enzyme somewhere other than the active site

Noncompetitive

8

Km and Vmax in a noncompetitive enzyme inhibitor is

Km- unchanged
Vmax- lowered

9

The transfer and utilization of energy in biologic systems

Bioenergetics

10

Measure of the change in heat content of reactants and products

Enthalpy

11

Measure in the change of randomness or disorder of the reactants and products

Entropy

12

Predicts the direction in which a reaction will spontaneously proceed

Change in free energy

13

When there is a net _____ of energy, the reaction would be spontaneous

Net loss of energy- exergonic

14

Energy currency of the cell

ATP

15

Mas mayaman kay ATP na pwede utangan

PCBC bank

Phosphoenolpyruvate
Carbamoyl phosphate
1,3 Bisphosphoglycerate
Creatine phosphate

16

Greatest quantitative source of high energy phosphate in aerobic organisms

Oxidative phosphorylation

17

Final common pathway by which electrons from different fuels of the body flow to oxygen

ETC

18

Electron transport chain is located in the

Inner mitochondria

19

Only nonprotein component of ETC

Ubiquinone (CoQ)

20

The synthesis of ATP in the ETC is through the entry of protons to which complex

Complex V

21

Barbiturates inhibits which complex in the ETC

Complex I

22

Cyanide inhibits which complex in the ETC

Complex IV

23

Carbon monoxide inhibits which complex in the ETC

Complex IV

24

Dimercaprol inhibits which complex in the ETC

Complex III

25

Malonate inhibits which complex in the ETC

Complex II

26

Final electron acceptor in ETC

Oxygen

27

Compounds that increase the permeability of the inner mitochondrial membrane to protons

Uncouplers

28

Synthetic uncouplers

Aspirin
2,4 dinitrophenol

29

Byproduct of ETC when molecular O2 is partially reduced

Reactive oxygen species

30

ATP synthase inhibitors inhibit this complex in the ETC

Complex V

31

Inhibits oxidative phosphorylation by inhibiting the transport of ADP in and ATP out of the mitochondria

Atractyloside