Bacte Metabolism

Question 1

Defined as the sum of all chemical processes that take place in a living organism and results in a growth, energy generation, waste disposal and other function related to cell nutrient distribution

Answer 1

METABOLISM

Question 2

Two phases on bacterial metabolism

Answer 2

1.) ANABOLISM
2.) CATABOLISM

Question 3

Constructive phase; synthesize new bacterial molecules and energy production form resulting carbon skeletons

Answer 3

ANABOLISM

Question 4

Destructive phase; large complex molecules are broken down into simpler, smaller molecules accompanied by energy utilization

Answer 4

CATABOLISM

Question 5

A type of metabolism regulation where the production of an enzyme is regulated

Answer 5

GENETIC TYPE

Question 6

A type of metabolism regulation where the activity of an enzyme is regulated

Answer 6

via FEEDBACK INHIBITION

Question 7

Starting carbohydrate for bacterial fermentation or oxidation

Answer 7

GLUCOSE

Question 8

The 3 pathways which are designed to produce pyruvate

Answer 8

> Embdhen-Meyerhof-Parnas Pathway
Pentose Phosphate Pathway
Entner-Doudoroff Pathway

Question 9

____________________ can be further catabolized either fermentatively or oxidatively

Answer 9

PYRUVATE

Question 10

An efficient energy- generating process in which molecular oxygen (O2) is the final electron acceptor

Answer 10

Oxidation/ Aerobic Respiration

Question 11

> 1st stage in carbohydrate metabolism
Oxidation of glucose to pyruvic acid
Major route of glucose metabolism in most cells

Answer 11

GLYCOLYSIS

Question 12

> Most important process for the complete oxidation of a substrate under aerobic conditions

> An enzyme coverts pyruvate into CO2 and an acid

> Used to generate energy in the form of ATP

> Substrate used in this process: Acetyl coenzyme A

Answer 12

KREBS CYCLE

Question 13

An anaerobic process, the use of Krebs Cycle or an electron transport chain

Answer 13

FERMENTATION

Question 14

Ethanol (as a major end-product); used by yeasts

Answer 14

Alcoholic Fermentation

Question 15

Only lactic acid is produced as an end-product

Answer 15

Homolactic Fermentation

Question 16

Alcohol, CO2, Formic and acetic acid (aside from lactic acid) as end-products

Answer 16

Heterolactic Fermentation

Question 17

Propionic acid is the major end product

Answer 17

Propionic acid Fermentation

Question 18

Produce a number of acids as end products: lactic, acetic, succinic and formic acids; the strong acid produced is the basis for the positive reaction in the methyl red test

Answer 18

Mixed Acid Fermentation

Question 19

Acetoin and 2,3-butanediol are end products; detection of ecetoin. Basis for positive reaction on Voges-Proskauer Test; little acid is produced

Answer 19

Butanediol Fermentation

Question 20

Organisms that have positive Voges-Proskauer Test usually have negative reaction on _________________________

Answer 20

Methyl red test

Question 21

Certain obligate anaerobes produce butyric acid as their major end product along with acetic acid, carbon dioxide and hydrogen

Answer 21

Butyric acid Fermentation

Question 22

Enzyme for transport of lactose across the cell wall into the bacterial cytoplasm

Answer 22

Beta-galactoside permease

Question 23

Break the galactoside bond, releasing glucose which will be fermented

Answer 23

Beta-galactosidase