Structure and function of vascular system Flashcards
What are 8 features on a root cell? From innermost to outermost
-xylem
-phloem
-pericycle
-Casparian strip
-endodermis
-cortex
-epidermis
-root hair
Meaning of dicot leaf/root/stem
dicotyledonous-2 embryonic leaves
Function of root hairs
expand SA of root meaning more water and nutrients can be absorbed
function of Casparian strip
prevents bacterial, fungal pathogens and toxic elements from entering the stele
function of xylem
efficient water transport in non living xylem
function of phloem
efficient process of translocation (sugars and amino acids) in living phloem
6 features of a stem from innermost to outermost
-pitj
-xylem
-cambium
-phloem
-cortex
-epidermis
What is the outermost layer, on the top of a leaf called?
waxy cuticle
What are the outer layers of a leaf called?
upper/lower epidermis
What layer is beneath the upper epidermis and what substance does it contain?
palisade layer containing chlorophyll
What layer is beneath the palisade layer and takes up the most space?
spongy layer
What can be found on the underside of a leaf?
stomata, controlled by guard cells
What other feature may be found in a leaf?
vein/vascular bundle