plants & classification notes there will be a quiz on this material soon. please take notes
TRANSCRIPT
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!!!