Chlorophyll Flashcards
This is a process used by plants and other organisms to convert light energy into chemical energy that, through cellular respiration, can later be released to fuel the organism’s activities.
Photosynthesis
These are light absorbing molecules
Pigments
These help absorb the energy from the light
Pigment
During light reactions, light – energy absorbed by chlorophyll is used to make two energy – rich compounds, what are these?
ATP (Adenosine Triphosphate) and NADPH (Nicotinamide adenine dinucleotide phosphate)
NADPH is an acronym for what?
Nicotinamide adenine dinucleotide phosphate
There are two main types of chlorophyll in plants and green algae, what are these?
Chlorophyll a and Chlorophyll b
Chemical formula of Chlorophyll a
C55H72O5N4Mg
Chemical formula of Chlorophyll b
C55H70O6N4Mg
The only pigment directly involved in the light reactions in photosynthesis.
Chlorophyll a
It is the most abundant type of chlorophyll, which absorbs light rays of wavelengths of 429 nm and 659 nm most effectively
Chlorophyll a
Primarily absorbs light from the blue - violet and red ranges of the spectrum and appears dark green because it mainly reflects green light.
Chlorophyll a
Does not take part directly in the light reactions but instead transmits absorbed energy to those chlorophyll a molecule that are directly involved.
Chlorophyll b
It is a type of accessory pigment responsible for passing on light energy to chlorophyll a. It is found in plants and green algae. It absorbs the light rays of wavelengths 455 nm and 642 nm.
Chlorophyll b
Chlorophyll b and carotenoids are also known as
Accessory pigments
What group does chlorophyll a contain?
Methyl group (CH3)
