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chlorophyll a

chlorophyll a

1 6.3
A green pigment in plants, algae, and some bacteria that absorbs light to help make food
  • noun
  • /ˈklɔːrəˌfɪl ə/
  • Specialized
translation icon : clorofila a
  • These observations could be explained by chlorophyll a degradation as the cells try to maintain nitrogen allocation into stationary phase.
  • chlorophyll a and productivity

Examples

  • The value of chlorophyll a removal was not included in the summary table because this service is considered potentially redundant if nitrogen removal through denitrification is also considered. The value of nitrogen.

    Academic text (2012)
  • Scientists measure chlorophyll a levels to assess the productivity of algae in various environments.

  • The long-term chlorophyll a record shows a similar pattern.

    Academic text (1999)
  • Increases in phytoplankton productivity rates are usually followed by increases in chlorophyll a, often with a lag of several weeks.

    Academic text (1999)
  • On the bottom (panel C), the mean field of chlorophyll-a concentration (mg/m3) occurring in the days of each survey derived from satellite remote sensing and provided for each region.

    Academic text (2018)
  • The most complete set of phytoplankton biomass (chlorophyll a) and primary productivity data for Lake Bonney was collected from early September 1991 to early December 1991.

    Academic text (1999)
  • Water-quality objectives set by EPD for concentrations of dissolved oxygen and chlorophyll-a in important areas such as Tolo Harbour are not being met, though some limited improvements were achieved in 1989.

    Academic text (1990)
  • Figure 3. Temporal trends in water column productivity and chlorophyll a in the east lobe of Lake Bonney from the 1989-1990 through the 1997-1998 field seasons.

    Academic text (1999)
  • A remarkable finding is also the marginal contribution of temperature, salinity, and chlorophyll-a concentrations in affecting the structure of the larval assemblages, at least when compared with the bathymetry and the hydrodynamics.

    Academic text (2018)
  • In the Gulf of Hammamet, an increase in temperature and salinity values was detected from northwest to southeast, while coastal waters showed higher Chlorophyll-a values compared with the offshore ones, with a peak between 35.5 and 36 degrees of latitude.

    Academic text (2018)

Surface Forms

chlorophyll a singular

Morphology

chlorophyll + A

A learner who knows 'chlorophyll' will grasp that the phrase refers to that pigment, and the trailing 'a' functions as a label indicating a specific type or variant, so they can infer it names a particular form. However, the exact status as the principal form in higher plants and the technical role of the letter label are domain-specific and not fully predictable from the constituents (especially if 'A' is interpreted as a different technical term), so the expression is only partially transparent.

Etymology

Chlorophyll a comes from Greek parts chloro ('green') and phyll ('leaf'), because it is the green substance in leaves that captures light. Scientists added the letter a to name this main type, so the name tells you it is the leaf green that helps plants absorb light.