Roots • Function: • Anchor • Absorb water & nutrients from soil • Types: • Tap root • Fibrous root
Cross section of root with root hair. Absorption takes place through root hair
STEMS • Function: • Hold plant upright • Transport water from roots to leaves • Transport sugar from leaves to roots
Leaves • Function: • Capture light energy • Convert light energy to chemical energy • Make glucose, fructose, galactose
Flowers • Function: • Reproduction • Male: sperm (pollen) production • Female: egg/ovum (seed) production • Ovary becomes the fruit to protect egg (seed)
Bark adaptations Green bark in desert Thin peeling bark in rain forest
Lianas The suction exerted by the leafy crown to draw up all this water from the roots is powerful. If a small cut is made in a liana stem, a hissing sound can be heard as air is sucked into the severed vessels. Lianas do not twine around the trunks of their supporting trees. Their stems hang freely, their weight carried by many small attachments in the crown.
Adaptations Cypress knees help exchange gases buttresses