Tuesday, February 12, 2008
Rough Endoplasmic Recticulum (Rough ER)functions:
synthesis proteins
ribosomes attached produces proteins
transport the proteins to Golgi Body
Smooth Endoplasmic Recticulum (Smooth ER)functions:
Synthesis fats, steroids
Detoxification
structure: tubular
Golgi Apparatus/ Golgi Bodyfunctions:
stores, modifies substances made by ER
packages them in vesicles
structure: disc-shaped
Mitochondrion (plural: Mitochondria)functions:
Aerobic Respiration
Source of Energy (battery)
structure: small sausage-shaped
Rough ER - vesicles -> Golgi - secretory vesicles -> out of cell
RBC
function: transport oxygen
structure: circular bi-concave shape
Adaptations: no nucleus (bi-concave) thus...
INCREASE Surface Area to Volume Ratio
More haemoglobin and hence more OxygenXylem Vessel
function: transport water and minerals
structure: long hollow tubes
Adaptations: no cross-walls or protoplasm (lumen)
lignin on walls of xylem vessels (mechanical support)
Root Hair Cell
structure: long and narrow
function: tranport water and mineral salts
INCREASE Surface Area to Volume RatioLabels: Cells, ER, Golgi, Mitochondrion, RBC, Root Hair Cell, Xylem
for now and ever...
7:42 AM