Photosynthesis and the Role of Pigment Flashcards
1
Q
- produce their own food by harnessing the energy from the sun
- they perform this in their chloroplast
A
Autotrophs
2
Q
- organic molecules
- selectively absorbs light of specific wavelengths
- built in the thylakoid membrane
A
Pigment
3
Q
- ___________ that are not absorbed but are reflected
- reflected light gives each pigment its characteristic color
A
Wavelength of Light
4
Q
- __________ in the leaves of some plants reduces their capacity for photosynthesis activity. However in the wild this results in an advantage that they become less likely eaten by herbivores.
A
Variegation
5
Q
- appears bluish green
- most common and important pigment
- absorbs violet, blue, and red light; reflects green color
- site for photosynthesis
- found in the chloroplast
- convert solar energy to chemical energy
- consist of a porphyrin ring with a central magnesium core
A
Chlorophyll a (principle pigment)
6
Q
- appears to be yellow green
- absorbs mainly blue and orange light but reflects olive green
- breaks down faster
- energy capturing pigment
- does not participate directly in light reactions
- only in green algae and higher plants
A
Chlorophyll b (accessory pigment)
7
Q
Present in brown algae
A
Chlorophyll c
8
Q
Present in red algae
A
Chlorophyll d
9
Q
- various shades of red, yellow, and orange
- absorbs mainly violet blue and green light
- appear once the chlorophyll breaks down
- evident in autumn leaves
A
Carotenoids
10
Q
- includes alpha-carotene, beta-carotene, and lycopene
- red to orange pigment
A
Carotenes
11
Q
- includes lutein and fucoxanthin
- yellow to brown pigments
A
Xanthophyll
12
Q
- found in red algae and cyanobacteria
- water soluble, present in the aqueous cytoplasm or stroma of chloroplast
A
Phycobilins
13
Q
Red Algae
A
Phycoerythrin
14
Q
Blue algae
A
Phycocyanin
