tiền diệp lục
Definition
- Noun (Botany):
- Protochlorophyll: An intermediate, light-sensitive pigment found in plant seedlings and some algae. It is a biochemical precursor that converts into chlorophyll upon exposure to light, enabling photosynthesis to begin.
Usage Examples
- Noun:
- Tiền diệp lục tồn tại trong hạt đang nảy mầm trước khi nó gặp ánh sáng. (Protochlorophyll exists in the germinating seed before it encounters light.)
- Nhờ có ánh sáng, tiền diệp lục chuyển hóa thành diệp lục tố. (Thanks to light, protochlorophyll is converted into chlorophyll.)
Advanced Usage
- Scientific Context: The term is primarily used in specialized botanical, biochemical, or plant physiology texts.
- Quá trình quang khử tiền diệp lục thành diệp lục a là bước then chốt. (The photoreduction of protochlorophyll to chlorophyll a is a key step.)
Variants and Related Words
- Diệp lục (Chlorophyll): The green pigment essential for photosynthesis, which protochlorophyll becomes.
- Sắc tố (Pigment): A general term for coloring substances in plant or animal tissues.
Synonyms
- Protochlorophyllide: A more specific term often used interchangeably with protochlorophyll in scientific literature, though they are slightly different chemical forms.
Notes
- This is a specialized scientific term (a loanword from "protochlorophylle"). It is a compound noun: "tiền" (pre-) + "diệp lục" (chlorophyll). It is not used in everyday conversation.