Autotrophs Flashcards
1
Q
Autotrophy
A
make their own complex carbohydrates for nourishments
2
Q
What is photosynthesis
A
- process on which photoautotrophs rely to capture the energy in solar radiation as high-energy electrons and use it to produce carbohydrate molecules
3
Q
Where does Photosynthesis take place
A
in the chloroplast of plant cells
4
Q
Photosynthetically Active Radiation (PAR)
A
- 400-700nm
-different pigments involved in photosynthesis absorb light unevenly
5
Q
Carotenoids
A
- reflect light at the wavelengths of yellow, orange and red
6
Q
anthocyanins
A
- reflect light at red and purple wavelengths
7
Q
What kind of influences affect the amount of PAR plants receive?
A
- latitude
- time of day (cloud cover)
- landscape features
- position of plant
- aquatic system
8
Q
How far does light penetrate in the ocean?
A
approx. 200m
9
Q
in which ocean layer can photosynthesis only occur in?
A
euphotic zone
10
Q
A
