Biologic Oxidation

Question 1

Gain of electron

Answer 1

Reduction

Question 2

The process by which cells derive energy in the form of ATP from controlled reaction of hydrogen with oxygen from water

Answer 2

Respiration

Question 3

Removal of electron

Answer 3

Oxidation

Question 4

Redox potential is normally expressed at pH ____, at which pH the electrode potential of the hydrogen electrode is _____

Answer 4

7.0 , -0.42

Question 5

It allows at prediction of the direction of flow of electron

Answer 5

Redox system

Question 6

Enzymes involved in oxidation and reduction

Answer 6

Oxidoreductase

Question 7

It catalyze the removal of hydrogen from a substrate using oxygen as hydrogen acceptor

Answer 7

Oxidases

Question 8

Oxydases form ___ or ____ as reaction product

Answer 8

Water or hydrogen peroxide

Question 9

It is a hemeprotein having the typical heme prosthetic group myoglobin and hemoglobin

Answer 9

Cytochrome oxidase

Question 10

Action of oxydase is blocked by

Answer 10

Carbon monoxide, cyanide, and hydrogen sulfide

Question 11

Cause of cellular respiration poisoning

Answer 11

Carbon monoxide, cyanide and hydrogen sulfide

Question 12

Cytochrome oxidase contains ____ molecules of heme, each having one ____ atom, that oscillates between ____ and ____ during oxidation and reduction.

Answer 12

2, Fe, Ferric, Ferous

Question 13

Types of oxidases

Answer 13

Cytochrome oxidase and flavoprotein

Question 14

Flavoprotein enzymes contain

Answer 14

Flavin mononucleotide or flavin adenine dinucleotide

Question 15

FMN and FAD are formed in the body from the vitamin

Answer 15

Riboflavin

Question 16

Types of flavoprotein that contains one or more metal as essential factor

Answer 16

Metalloflavoproteins

Question 17

An FMN linked enzyme found in the kidney

Answer 17

L amino acid oxidase

Question 18

It contains molybdenum and plays an important role in the conversion of purine bases to uric acid

Answer 18

Xanthine oxidase

Question 19

FAD linked enzyme present in the mammalian liver

Answer 19

Aldehyde dehydrogenase

Question 20

It contains molybdenum and non heme iron and acts upon aldehydes and N-heterolytic substrates

Answer 20

Aldehyde dehydrogenase

Question 21

Enzymes used by dehydrogenase

Answer 21

Nicotinamide adenine dinucleotide

Nicotinamide adenine dinucleotide phosphate

Question 22

The proteins of dehydrogenase are formed in the body from vitamin

Answer 22

Niacin

Question 23

It catalyze oxidoreduction reaction in the oxidative pathways of metabolism

Answer 23

NAD linked dehydrogenase

Question 24

It is concerned in the electron transport in the respiratory chain

Answer 24

Riboflavin linked dehydrogenase

Question 25

Proteins that are tightly bind to their apoenzymes than are the nicotinamide coenzymes

Answer 25

Riboflavin linked dehydrogenase

Question 26

Acts as a carrier of electron between NADH and the components of higher redox potential

Answer 26

NADH dehydrogenase

Question 27

Dehydrogenase that transfer reducing equivalent directly from substrate to the respiratory chain

Answer 27

Succinate dehydrogenase Acyl coa dehydrogenase Mitochondrial 3 phosphate dehydrogenase

Question 28

Its is an intermediarry carrier of electron between acyl coa dehydrogenase and the respiratory chain

Answer 28

Electron transferring flavoprotein

Question 29

Iron containing hemo protein

Answer 29

Cytochromes

Question 30

In the respiratory chain, they are involved as carrier of electron from flavoprotein and cytochrome oxydase

Answer 30

Cytochrome

Question 31

They protect the body agains harmful peroxide

Answer 31

Hydroperoxidase

Question 32

Accumulation of peroxide can lead to generation of free radicals which can...

Answer 32

Disrupt membrane and cause cancer and artherosclerosis

Question 33

They are found in milk and in leukocytes, playelets and other tissues involved in eicosanoid metabolism

Answer 33

Peroxidase

Question 34

______ is reduced at the expense of several substance that will act as an electron acceptor

Answer 34

Hydrogen peroxide

Question 35

It catalyzes the destruction of H2O2 and lipid hydroperoxide

Answer 35

Glutathione peroxidase containing selenium

Question 36

Heme protein containing 4 heme groups

Answer 36

Catalase

Question 37

It is found in the blood, bone marrow, mucous membranes kidney and liver

Answer 37

Catalase

Question 38

It functions to destroy hydrogen peroxide formed by the action of oxidase

Answer 38

Catalase

Question 39

Rich in oxidase and catalase

Answer 39

Peroxisomes

Question 40

It is concerned with the synthesis or degradation of many different metabolites

Answer 40

Oxygenase

Question 41

They catalyze the incorporation of oxygen to the substrate

Answer 41

Oxygenase