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