DRQPlants are believed to have evolved from green algae found in lakes/ponds.

PREDICT: What adaptations have plants evolved to live on land?

Write your answer. Then turn to your partner & discuss your thoughtsBe prepared to share!

Plant Classification-plants are multi-cellular eukaryotes-classified into 9 different phyla-classified based on distinguishing characteristics

-plants are thought to have evolved from green algae

Plants are classified as either vascular or nonvascular 1) vascular plants have a collection of pipelines that bring water and minerals up from roots, disperse sugars down from leaves

-vascular tissue allows plants to grow higher off the groundEx: trees, sunflowers

2) Nonvascular Plants-have no special pipelines-they grow close to the ground or on tree trunks to absorb water/nutrients directly-EX: mosses, liverworts

Left Side OutputOpen your books to page 615. Sketch the plant & adaptations for life on land. Label and define the following parts:-pollen-seeds-stomata-cuticle-vascular system-roots

DRQPlants are made up of different tissues. Predict what the function of these tissues are based on the picture below

Plant Tissues1) Dermal Tissue-outside covering of the plant, protects it

2) Ground Tissue-makes up much of the inside, provides supports, stores materials

3) Vascular Tissue-contains tubes & vessels to transport food in tubes called phloem and Water in tubes called xylem

Sketch (left side) 3 tissues of plants

Meristem Tissue-where new growth occurs-source of new cells

Root TipStem

Roots-make up over the body of the plant!-anchor the plant to the ground-absorb water & minerals from the soil-contain root hairs that spread out through soil, increases surface area to absorb water

STAP!! Stop-Think-And-Predict Just above the root tip are tiny projections called root hairs1) What do you think is the Function of root hairs?2) What does this function have to do with surface area?

Root Hairs-spread out through the spaces in soil -increase the surface area available to take up water

Reproduction-plants have special organs for reproduction-Seeds storage device for plant embryo-Angiosperms-have seeds in fruit/flowers-gymnosperms- plants with no fruit (most have seeds in cones)-

Flowering Plants are classified based on their seeds

DicotsMonocotsTwo seed leaves (called cotlyedon)One seed leafNet-like veinsParallel veinsFlower parts in fours or fivesFlower parts in threesRinged vascular tissueScattered Vascular tissue

Turn to page 668 sketch figure 22.5. Label & define the following reproductive parts: -stamen-anther-filament-pistil-ovary-stigma-style

STAP - stop-think-and-predict

1) What function does this structure serve in plants?

Leaves

-gather light for photosynthesis-contain vascular tissue (veins) for transporting food/water-most have waxy covering called a cuticle to prevent water loss

-upper side of leaf contains most of the chloroplasts for photosynthesis-Underside contains stomata which open and close to release water (transpiration) & allow gas exchange (for photosynthesis)*What gases are exchanged during photosynthesis?

Open your books to pgs 653 & 655Divide your left side in half

Sketch & label Sketch & label 21.12 on pg 653 figure 21.14 Describe the on pg 655role of the guard cells

Challenge ActivityWith your team, brainstorm a list of organs/tissues that are associated with each of these plant processes:PhotosynthesisCell RespirationTranspirationReproduction**Hint you should have 4 or more in each column