BioScience Dictionary

A | B | C | D | E | F | G | H | I | J | K | L | M | N | O | P | Q | R | S | T | U | V | W | X | Y | Z | Ot.

Found Autotroph 15 times.

Displaying results 1 to 10.

1. Acetyl-CoA pathway
A pathway of autotroph ic carbon dioxide fixation commonly happened in obligate anaerobe s such as methanogen s, homoacetogen s, and sulfate reducing bacteria .

2. Autotroph
An organism that "makes its own food" and does not require previously formed organic materials from the environment. Plants are classified as autotrophs because they use photosynthesis to make their own energy. Compare heterotroph .

3. Autotrophic
Independent of other organisms in respect of organic nutrition; able to fix carbon dioxide, by photosynthesis , to form carbohydrate s.

4. Autotrophic
Refers to organisms that synthesize their nutrients and obtain their energy from inorganic raw materials.

5. Autotrophs
Organisms that synthesize their own nutrients; include some bacteria that are able to synthesize organic molecules from simpler inorganic compounds.

6. Chemoautotroph (chemolithotroph, chemotroph)
A microorganism which can make its own food using chemicals like ammonia or sulfur compounds rather than solar energy as in photosynthesis . It derives its energy by oxidizing the chemical bonds. A type of autotroph .

7. Division Cyanophyta (cyanophytes, cyanobacteria, blue-green algae)
Division Cyanophyta (which is in Kingd om Monera ) contains the cyanobacteria, which are one-celled or colonial prokaryote s that contain chlorophyll (but not chloroplast s, which contain the chlorophyll in true plants). Cyanobacteria are autotrophs (create their own energy via photosynthesis ) and reproduce by fission (splitting in two). There are over 7,500 species of cyanobacteria and they are found in many environments: damp soil and rocks, fresh water, and salt water.

8. Functional groups
This ecological term refers to groups of organisms that obtain energy in similar ways. autotroph ic plants fix energy from sunlight. Fungi and bacteria decompose organic matter. Shredders chew large particles like tree leaves. Scrapers rasp periphyton and microbes from solid surfaces. Collectors filter fine particles from the water or gather them from deposits.

9. Kingdom Monera (prokaryotes, monerans)
This biological kingdom is composed of bacteria and cyanobacteria , one-celled (sometimes colonial) organisms whose cells lack a nuclear envelope, mitochondria , or plastid s. They reproduce asexually through fission (splitting in two) and mainly gain their nutrition by absorbing it from their environment (though some species are chemoautotroph s or photosynthetic).

10. Lichens
autotrophic organisms composed of a fungus (sac or club fungus) and a photosynthetic unicellular organism (e.g., a cyanobacterium or alga) in a symbiotic relationship; are resistant to extremes of cold and drought and can grow in marginal areas such as Arctic tundra.

View web definitions »

Learn more about Autotroph »