BSC 382 Exam 3 review

What is the predominant form of Carbon found in the atmosphere?

• CO2

• Carbonic Acid

• Carbonate

Which of the following activities would move carbon from the atmosphere to the terrestrial reservoir?

• Burning fossil fuels

• Planting trees

• Plant decay

• Volcanos

Which polysaccharide forms the cell wall of fungi?

• Chitin

• Peptidoglycan

• Cellulose

• Lignin

Which of the following is the FIXED, reduced form of Nitrogen?

• N2

• NH4

• NO2

• NO3

True or False: Only anaerobic bacteria break down organic pollution.

• True

• False

True or False: All microbes can achieve mineralization of organic pollutants.

• True

• False

Which of the following pollutants would be most difficult to degrade?

• CH4

• CH3OH

• CHOOH

• CH2Cl2

Which of the following is the most bioavailable form of a metal?

• Gas

• Liquid

• Solid

Which of the following is the LEAST toxic form of Mercury?

• Hg⁰

• CH3Hg

• CH3CH3Hg

How would you move metals from a solid phase (insoluble) so a liquid phase (soluble)?

• Decrease pH

• Increase pH

• Increase Temperature

• Decrease Temperature