Chlorophyll Fluorescence

Chlorophyll + hν (blue/red) → Chlorophyll* → Chlorophyll + hν (red)

ภาพรวม

Chlorophyll absorbs blue (430 nm) and red (660 nm) light, reaching an excited singlet state. Most energy is transferred to the photosynthetic reaction center, but a small fraction (1–2%) is re-emitted as red fluorescence (680–740 nm). This fluorescence is a direct indicator of photosynthetic efficiency.

ตัวอย่างในชีวิตประจำวัน

If you shine a UV light on a spinach extract, it glows red due to chlorophyll fluorescence — a common chemistry demonstration.

ความสำคัญทางอุตสาหกรรม

Chlorophyll fluorescence measurement (PAM fluorometry) is used in agriculture, forestry, and ecology to assess plant health and stress.

คุณสมบัติ

ประเภท: Photochemical
ย้อนกลับได้: ใช่
พลังงาน: คายความร้อน

ปฏิกิริยาที่เกี่ยวข้อง

Silver Chloride Photodecomposition Luminol Chemiluminescence Firefly Bioluminescence (Luciferin Oxidation) Photolysis of Water (Vacuum UV) Photochemical Smog Formation (NO₂ Photolysis) Photodegradation of Methylene Blue by TiO₂ Photodissociation of Chlorine Gas Silver Bromide Photodecomposition Photosynthesis Cis-Trans Isomerization of Retinal

Frequently Asked Questions

What is the equation for Chlorophyll Fluorescence?

The balanced equation is: Chlorophyll + hν (blue/red) → Chlorophyll* → Chlorophyll + hν (red).

What type of reaction is Chlorophyll Fluorescence?

Chlorophyll Fluorescence is a photochemical reaction. It is reversible under certain conditions.

Is Chlorophyll Fluorescence exothermic or endothermic?

Chlorophyll Fluorescence is exothermic (releases energy).