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

1/13

Click to flip

13 Cards in this Set

  • Front
  • Back
An organism, such as a bacterium or protozoan, that obtains its nourishment through the oxidation of inorganic chemical compounds as opposed to photosynthesis
Chemoautrotoph
An organism capable of synthesizing its own food from inorganic substances using light as an energy source. Green plants and photosynthetic bacteria are photoautotrophs
Photoautotrophs
organisms which use light for energy, but cannot use carbon dioxide as their sole carbon source. Consequently, they use organic compounds from the environment to satisfy their carbon requirements.
Photoheterotroph
an organism requiring organic compounds for its principal source of food
Heterotroph
any organism capable of self-nourishment by using inorganic materials as a source of nutrients and using photosynthesis or chemosynthesis as a source of energy, as most plants and certain bacteria and protists
Autotroph
an organism which uses an inorganic substrate (usually of mineral origin)
Lithotrophs
must ingest organic building blocks that they are incapable of creating on their own. Most derive energy from organic molecules like glucose.
Chemoheterotrophs
respiration in which molecular oxygen is consumed and carbon dioxide and water are produced
Aerobic Respiration
Respiration in which molecular oxygen is not consumed
Anaerobic Respiration
the species that is reduced
Electron Acceptor
the species that is oxidized
Electron Donor
To oxidize (an ammonia compound) into nitric acid, nitrous acid, or any nitrate or nitrite, especially by the action of nitrobacteria
Nitrification
to reduce (nitrates) to nitrites, ammonia, and free nitrogen, as in soil by microorganisms
Denitrification