Lec 14 Flashcards
Chloroplast
A type of plastid found in plants, algae and Euglena
Do photosynthesis in leaf cells
The plastid organelles
Young plant cells contain proplastids
Proplastids mature into the type of organelle required by the cell
Storage plastids
Store nutrients in root cells
Chromoplasts
Attract animals to flowers and fruit
Proplastid to chloroplast
A third membrane is needed to form a chloroplast
Formed by the folding of the membrane over itself to form a third membrane (thylakoid membrane)
Arabidopsis
Proplastid to chloroplast
Turns into a large organelle
Functional gene (var2) makes protein which allows for the formation of a proper chloroplast
A mutation in the var2 gene causes the strain to be green and white and smaller
Several ornamental plants are
Variegated (2 color) leaves
Function of chloroplasts
Import light CO2 and water
Export Sugar and O2
Reproduction of chloroplasts
Same as mitochondrion
Most protein are imported from cytosol using
Translocases
TOC rather than TOM
TIC rather than TIM