Plants & Classification Notes There will be a quiz on this material soon. Please take notes.

Plants & Classification Notes

There will be a quiz on this material soon.

Please take notes

What are plants?

Multi-cellular organismsMake own food (photosynthesis)Have chloroplastsHave rigid cell walls made of celluloseFound all over the world

Plants provide:

FoodOxygenMedicinesBuilding materialsTextiles (fibers)Coloring pigments

Plant Parts

Roots– Anchors the plant– Absorbs water & minerals– Storage– AKA “tuber”

Plant Parts

Stems– Support plant– Storage– Food & water “highway”

• Xylem carries water & minerals; goes up stem only

• Phloem carries food; goes up & down the stem

Plant Parts

Leaves– Provide food

(photosynthesis)– Have chloroplasts (green

coloring-chlorophyll)– Transpiration (“sweating”)– Respiration

Plant Classification

E X : G in ko E X : con ife rs

G ym n osp e rm s"n a ke d se ed s"

co n es , no f low e rsn e e d le -like lea ves

E X : g ra sses E X : o rch ids

M o no co ts

E X : o a k tree E X : b ro cco li

D ico ts

A n g io sp e rm sflo w erin g p la n ts

la rg es t g ro up

W ith se e ds

M o sses F e rns L ive rw o rts H o rse ta ils

W itho u t se e dsn e ed w a te r to

re p ro d uce ;sp o res

P la n ts

Plants Without Seeds

Need water to reproduceReproduce with sporesInclude– Mosses– Ferns– Horsetails– Bladderworts

Plants with Seeds

2 typesFound all over the world

Gymnosperms

Means “naked seed”Often have cones & needle-like leavesDo not have flowers– Ex: conifers, gingko

Angiosperms

Flowering plantsLargest group

Angiosperms

Monocots– Has 1 food part– Parallel veins– Petals in groups

of 3, 6, 9– Xylem & phloem

scattered throughout stem

Monocots

Angiosperms

Dicots– Have 2 food parts– Net-like veins– Petals in groups

of 4 or 5– Xylem & phloem

are ring-like in stem

Dicots

Homework

Scavenger Hunt!!!Find the following things: A root A stem A leaf 3 examples of seeds

Paste them on a sheet of paper and label each of them Be sure to include your name!!!