Question

give reason Chlorophyll A occurs in different reason

Answer 1

Chlorophyll a is a specific form of chlorophyllused in oxygenic photosynthesis. It absorbs most energy from wavelengths of violet-blue and orange-red light.[3] It also reflects green-yellow light, and as such contributes to the observed green color of most plants. This photosynthetic pigment is essential for photosynthesis in eukaryotes, cyanobacteriaand prochlorophytes because of its role as primary electron donor in the electron transport chain.[4] Chlorophyll a also transfers resonance energy in the antenna complex, ending in the reaction center where specific chlorophylls P680 and P700 are located.[5]

Chlorophyll aNamesIUPAC name

Chlorophyll a

Systematic IUPAC name

Magnesium [methyl (3S,4S,21R)-14-ethyl-4,8,13,18-tetramethyl-20-oxo-3-(3-oxo-3-{[(2E,7R,11R)-3,7,11,15-tetramethyl-2-hexadecen-1-yl]oxy}propyl)-9-vinyl-21-phorbinecarboxylatato(2−)-κ2N,N′]

Other names

α-Chlorophyll

Identifiers

CAS Number

479-61-8 

3D model (JSmol)

Interactive image

ChemSpider

16736115 

ECHA InfoCard100.006.852EC Number207-536-6E numberE140 (colours)

PubChem CID

6433192

RTECS numberFW6420000UNII

YF5Q9EJC8Y 

InChIChemical formula

C55H72MgN4O5Molar mass893.51 g·mol−1AppearanceGreenOdorOdorlessDensity1.079 g/cm3[1]Melting point~ 152.3 °C (306.1 °F; 425.4 K)[2]
decomposes[1]

Solubility in water

InsolubleSolubilityVery soluble in ethanol, ether
Soluble in ligroin,[2]acetone, benzene, chloroform[1

Answer 2

to give the green pigment to plant and it is occurring due to stomata which present in it