Study your flashcards anywhere!

Download the official Cram app for free >

  • Shuffle
    Toggle On
    Toggle Off
  • Alphabetize
    Toggle On
    Toggle Off
  • Front First
    Toggle On
    Toggle Off
  • Both Sides
    Toggle On
    Toggle Off
  • Read
    Toggle On
    Toggle Off
Reading...
Front

How to study your flashcards.

Right/Left arrow keys: Navigate between flashcards.right arrow keyleft arrow key

Up/Down arrow keys: Flip the card between the front and back.down keyup key

H key: Show hint (3rd side).h key

A key: Read text to speech.a key

image

Play button

image

Play button

image

Progress

1/14

Click to flip

14 Cards in this Set

  • Front
  • Back
In order to be synthesized, which of the following organic compounds need a source of usable nitrogen? (more than one answer may be selected)
A) carbohydrate
B) lipid
C) protein
D) nucleic acids
C) protein
D) nucleic acids
Which of the following organisms is using sulfur as a source of energy?
A) Thiobacillus: H2S > S0
B) Desulfovibrio: SO4 2- > H2S
C) Proteus: Amino acids > H2S
D) Redwood tree: SO42- > Amino acids
E) None of the above
A) Thiobacillus: H2S > S0
Which of the following pairs is mismatched?
A) Rhizobium - legumes
B) Bacillus thuringiensis - insect control
C) Thiobacillus ferrooxidans - uranium mining
D) Frankia - alders
E) Lichen - an alga and a bacterium non-photosynthetic bacterium
E) Lichen - an alga and a bacterium non-photosynthetic bacterium
Which of the following terms describes N2 > NH3?
A) Ammonification
B) Denitrification
C) Nitrification
D) Nitrogen fixation
E) None of the above
D) Nitrogen fixation
Nitrosomonas and Nitrobacter are capable of
A) Ammonification.
B) Denitrification.
C) Nitrification.
D) Nitrogen fixation.
E) None of the above
C) Nitrification.
This process is done by Rhizobium and certain cyanobacteria:
A) Ammonification
B) Denitrification
C) Nitrification
D) Nitrogen fixation
E) None of the above
D) Nitrogen fixation
Which of the following do not fix atmospheric nitrogen?
A) Cyanobacteria
B) Lichens
C) Mycorrhizae
D) Frankia
E) Azotobacter
C) Mycorrhizae
Filtration to remove protozoa occurs in
A) Anaerobic sludge digestion.
B) Primary sewage treatment.
C) Secondary sewage treatment.
D) Tertiary sewage treatment.
E) Water treatment.
E) Water treatment.
Which of the following is not a habitat for an extremophile?
A) The Atlantic Ocean
B) 100°C water
C) Acid mine wash
D) Inside rock
E) Salt-evaporating pond
A) The Atlantic Ocean
Sedimentation of sludge occurs in
A) Anaerobic sludge digestion
B) Primary sewage treatment.
C) Secondary sewage treatment.
D) Tertiary sewage treatment.
E) Water treatment
B) Primary sewage treatment.
Which of the following is not a symbiotic pair of organisms?
A) Orchid and mycorrhizae
B) Bean plant and Rhizobium
C) Elk and rumen bacteria
D) Sulfur and Thiobacillus
E) Onions and arbuscules
D) Sulfur and Thiobacillus
Which wastewater treatment process is responsible for removal of most of the BOD in sewage?
A) Anaerobic sludge digestion
B) Primary sewage treatment
C) Secondary sewage treatment
D) Tertiary sewage treatment
E) Water treatment
C) Secondary sewage treatment
Bacteria can increase the Earth's temperature by
A) Generating a great deal of heat in metabolism.
B) Oxidizing CH4.
C) Using the greenhouse gas CO2.
D) Providing nutrients for plant growth.
E) Producing CH4, which is a greenhouse gas.
E) Producing CH4, which is a greenhouse gas.
Nitrogen fixation
A) Requires aerobic conditions.
B) Requires anaerobic conditions.
C) The amount of oxygen doesn't make any difference.
B) Requires anaerobic conditions.