BioScience Dictionary

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Found Photosynthesis 57 times.

Displaying results 1 to 10.

1. Accessory pigments
Light-absorbing pigments such as carotenoid s and phycobilin s that serve as complements to chlorophyll in plants, algae and bacteria by trapping light energy for photosynthesis .

2. Anoxygenic photosynthesis
A type of photosynthesis in green and purple bacteria in which oxygen is not produced. Use of light energy to synthesize ATP by cyclic photophosphorylation without oxygen production in green and purple bacteria.

3. Autochthonous
Derived from within a system, such as organic matter in a stream resulting from photosynthesis by aquatic plants. Compare allochthonous .

4. 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 .

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

6. Biological clock
An internal biological mechanism which controls certain biological rhythms and biocycle s, such as metabolism, sleep cycles, photosynthesis .

7. C3 cycle (Calvin cycle)
The part of the photosynthesis process where carbon dioxide is converted into three-carbon compounds, which can then be turned into six-carbon sugar s.

8. C4 cycle (Hatch-Slack pathway)
An alternative, very efficient pathway used by plants living in areas with low levels of carbon dioxide, to convert carbon dioxide into a form usable by the plants during photosynthesis .

9. Calvin cycle (dark reactions)
In plants, a cyclical series of carbon-fixing, sugar -producing reactions in the chloroplast s. Some of the sugars (triose phosphates) are recycled, others are stored as carbohydrate s. Light is not needed for these reactions; they use the carbon dioxide and energy produced in the light reaction s of photosynthesis .

10. 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 .