plants. angiosperms flowering plants roots function: – anchor – absorb water & nutrients...
TRANSCRIPT
Plants
AngiospermsFlowering Plants
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
STOMATA – opens & closes for gas exchange. Underside of leaf
Flowers
• Function: – Reproduction– Male: sperm (pollen) production– Female: egg/ovum (seed) production• Ovary becomes the fruit to protect egg (seed)
Adaptations
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.
Leaf drip tips
Rain forest leaves
Adaptations
Cypress knees help exchange gases buttresses
Prop roots
Epiphytes
Bromeliads
Mangroves
Mangrove
Black Mangrove – “fingers” extrude salt
Nepthanes
Pitcher Plant
Sundew Venus Flytrap
Carrion Plants“stink” like dead animalsto attrack flies
Spices
• Pepper• Cloves – flower bud• Mustard - seed• Cinnamon - bark• Dill - leaf• Parsley - leaf• Paprika – dried pepper• Cayenne• Garlic – stem• Saffron - stamen
Black Pepper (fruit) Paprika
Cloves flower