Catabolic Reactions

Question 1

How can microorganisms generate energy?

Answer 1

Fermentation, aerobic respiration, anaerobic respiration, chemolithotrophy, phototrophy

Question 2

What is Glycolysis

Answer 2

Glucose is split into two parts an 2 ATP molecules are released

Question 3

When fermentation occurs..

Answer 3

No additional ATP is produced

Question 4

What is the fermentation mechanism

Answer 4

ATP is directly synthesized from an energy-rich intermediate

Question 5

What is the respiration mechanism

Answer 5

Oxidative phosphorylation and ATP is produced from proton motive force formed by transport of electrons

Question 6

Describe glycolysis

Answer 6

Occurs in the cytoplasm and has 2 puruvic acid molecules, NADH used in electron transport systems; in eukaryotes the acid and NADH enter mitochondria

Question 7

Describe Ethanol fermentation

Answer 7

Utilized by yeast in the absence of oxygen; CO2 produced by fermentation allows bread to rise and ethanol is utilized in production of beet and wine

Question 8

Describe Latic acid fermentation

Answer 8

Pyruvate is converted to lactate ; certain bacteria utilized in food production

Question 9

What is Ferridoxin?

Answer 9

An iron containing protein is responsible for H2 production

Question 10

How can fermentations be classified by substrate fermented ?

Answer 10

With chemicals that are not too oxidized, too reduced, and can undergo substrate level phosphorylation