chlorophyl

Thân thiện

A green leaf contains chlorophyl that helps it make food from sunlight.

Definition

1. Noun:
   • A green pigment: Chlorophyl is any of a group of green pigments found in photosynthetic organisms. These pigments are essential for absorbing light energy, which is used to synthesize carbohydrates from carbon dioxide and water.

Usage Examples

• Noun:
  • The green color of leaves is due to the presence of chlorophyl.
  • Plants use chlorophyl to capture sunlight during photosynthesis.

Advanced Usage

• Scientific Context: In biology and chemistry, "chlorophyl" refers specifically to the four naturally occurring forms (e.g., chlorophyll a, b, c, d) that differ slightly in their molecular structure and light absorption properties.
  • The study focused on the degradation rate of chlorophyl in senescent leaves.

Variants and Related Words

• Chlorophyll (n): The more common modern spelling of the same substance.
  • Chlorophyll is vital for a plant's ability to produce food.
• Chlorophyllous (adj): Containing or relating to chlorophyll.
  • The chlorophyllous tissues are located in the mesophyll of the leaf.

Synonyms

• Green pigment: A general term for the coloring matter.
• Photosynthetic pigment: A broader term that includes chlorophyl and other pigments like carotenoids.

Related Phrases and Terms

• Chlorophyll fluorescence: A phenomenon where absorbed light energy is re-emitted as light, used to measure photosynthetic efficiency.
  • Researchers used chlorophyll fluorescence to assess plant health.
• Chlorophyll content: A measurable quantity indicating the amount of chlorophyll in plant tissue.
  • The chlorophyll content decreases when the plant is under stress.

Học thuật

Noun

1. any of a group of green pigments found in photosynthetic organisms; there are four naturally occurring forms

Từ đồng nghĩa

• chlorophyll