What are clusters of pigments that capture light?
What are clusters of pigments that capture light?
The light-dependent reactions begin in a grouping of pigment molecules and proteins called a photosystem. Photosystems exist in the membranes of thylakoids. A pigment molecule in the photosystem absorbs one photon, a quantity or “packet” of light energy, at a time.
What are the group of pigments in the thylakoid called?
chlorophyll pigments
In thylakoid membranes, chlorophyll pigments are found in packets called quantasomes. Each quantasome contains 230 to 250 chlorophyll molecules.
Where are the pigment clusters located?
thylakoids
Plant Photosystems, clusters of pigment and protein that absorb light energy, are found in saclike photosynthetic membranes called thylakoids.
What are clusters of chlorophyll and accessory pigments called?
Some of these accessory pigments, in particular the carotenoids, also serve to absorb and dissipate excess light energy, or work as antioxidants. The large, physically associated group of chlorophylls and other accessory pigments is sometimes referred to as a pigment bed.
What are accessory pigments what do they do?
Accessory pigments help plants absorb additional light. Plants need to make these accessory pigments to maximize the amount of photosynthesis they can do. More pigments = More glucose or food for the plant!
What is another name for the Calvin cycle?
Other names for light-independent reactions include the Calvin cycle, the Calvin-Benson cycle, and dark reactions.
What are clusters of chlorophyll called?
1. Photosystems are clusters of chlorophyll and proteins. 2.
What does the antenna complex do?
The light-harvesting complex (or antenna complex; LH or LHC) is an array of protein and chlorophyll molecules embedded in the thylakoid membrane of plants and cyanobacteria, which transfer light energy to one chlorophyll a molecule at the reaction center of a photosystem.
What is a pigment molecule?
A pigment is a generic term for a molecule that absorbs light and has a color. Plants contain many pigments, giving rise to the various colors we see. Such pigment molecules include anthocyanins, flavanoids, flavines, quinones and cytochromes, just to name a few.
