Microbiology: Chapter 6

1. Organisms can be grouped according to the way they obtain Energy and Carbon.

True

False

2. Definition of phototrophs is...

Obtain energy from light

Obtain energy from the oxidation of chemical compounds

3. The definition of chemotrophs is...

Obtain energy from light

Obtain energy from the oxidation of chemical compounds

4. Some bacteria can use nitrate and sulfate as the transfer electron agent

True

False

5. The beginning set of reactions is always

The krebs cycle

Electron transport chain

Glycolysis

6. Anaerobic respiration is not that same as fermentation

True

False

7. Why must fermentation take place?

In order for glycolysis to continue

In order for glycolysis to continue, NADH must be oxidized back to NAD+ so that glycolysis can continue

Pyruvic acid needs to be reduces

8. Photohetertrophs use....

Light as an energy, CO2 as a carbon source, most common ecological "producers" and include cyanobacteria

Use light as an energy sourse, organic compounds for carbon, examples include green and purple nonsulfur bacteria

Use reduced organic compounds for both carbon and energy, examples are E. coli and human beings

9. Pyruvic acid may enter a fermentation pathway or

Alcoholic fermentation

Ethanol fermentation

Respiration

10. Photoautotrophs use...

Light as an energy, CO2 as a carbon source, most common ecological "producers" and include cyanobacteria

Use light as an energy sourse, organic compounds for carbon, examples include green and purple nonsulfur bacteria

Use reduced organic compounds for both carbon and energy, examples are E. coli and human beings

11. During fermentation ATP is produced.

Yes

No

12. During fermentation NADH is oxidized to NAD+

Yes

No

Only during glycolysis

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14. Glycolysis in a nutshell

A molecule of glucose (6 carbons) is split into 3 molecules

A molecule of glucose (6 carbons) is split into 4 molecules

A molecule of glucose (6 carbons) is split into 2 molecules

15. A net gain of two ATP molecules is produced by

Advanced level phosphorylation

Substrate level phosphorylation

Glycolitic level phosphorylation

16. Pyruvic acid is reduced to

Lactic acid (3 carbons)

Ethanol and carbon dioxide

Lactic acid, ethanol, and carbon dixoide

17. During fermentation

No ATP is produced

ATP is produced

NADH is reduced to NAD+

18. Another word for lithoautotrophs is

Stone eaters

Rock feeders

Granule heaters

19. Chemoautotrophs use...

Light as an energy, CO2 as a carbon source, most common ecological "producers" and include cyanobacteria

Use light as an energy sourse, organic compounds for carbon, examples include green and purple nonsulfur bacteria

Use reduced organic compounds for both carbon and energy, examples are E. coli and human beings

20. Chemoheterophs use....

Light as an energy, CO2 as a carbon source, most common ecological "producers" and include cyanobacteria

Use light as an energy sourse, organic compounds for carbon, examples include green and purple nonsulfur bacteria

Use reduced organic compounds for both carbon and energy, examples are E. coli and human beings

21. Two molecules of the coenzyme NAD+ are reduced to NADH by

Glycolysis

Krebs cycle

Substrate level phosphorylation

22. Ethanol fermentation is most popular in microorganisms, especially

Yeast

Beer

Alcohol

Bread

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Microbiology: Chapter 6

1. Organisms can be grouped according to the way they obtain Energy and Carbon.

2.

What first name or nickname would you like us to use?

2. Definition of phototrophs is...

3. The definition of chemotrophs is...

4. Some bacteria can use nitrate and sulfate as the transfer electron agent

5. The beginning set of reactions is always

6. Anaerobic respiration is not that same as fermentation

7. Why must fermentation take place?

8. Photohetertrophs use....

9. Pyruvic acid may enter a fermentation pathway or

10. Photoautotrophs use...

11. During fermentation ATP is produced.

12. During fermentation NADH is oxidized to NAD+

13. Respiration involves an __________ terminal electron acceptor.

14. Glycolysis in a nutshell

15. A net gain of two ATP molecules is produced by

16. Pyruvic acid is reduced to

17. During fermentation

18. Another word for lithoautotrophs is

19. Chemoautotrophs use...

20. Chemoheterophs use....

21. Two molecules of the coenzyme NAD+ are reduced to NADH by

22. Ethanol fermentation is most popular in microorganisms, especially