Download presentation
Presentation is loading. Please wait.
Published byElisabeth Craig Modified over 9 years ago
1
Plants
2
I. What is a plant? A. A multicelluar, eukaryote that has tissues and organs with specialized functions.
3
II. Parts of a Plant
4
A. Roots Absorb water and nutrients Anchor plant Example: carrot, radish, and sweet potato
5
B. Stems B. Stems Support leaves and reproductive structures The production of xylem produces the annual rings
6
C. Leaves Main function is Photosynthesis Take in CO 2 and release O 2
7
Classification of Leaves
8
D. Fruits Ripened ovaries of flowering plants Help to distribute seeds
9
III. Plant Adaptations to Land A.Cuticle waxy or fatty coating that helps to prevent water loss
10
B.Stoma allows for gas exchange
11
C. Seeds Contains an embryo and nutrients Allows for survival of harsh conditions
12
D. Vascular Tissues Specialized transport tissues of water and nutrients Allows for faster transportation
13
IV. Plant Classification
14
A.Vascular vs. Nonvascular Plants 1.Nonvascular – substances move through cells by diffusion and osmosis 2.Vascular- substances move through cells by xylem and phloem
15
a.Xylem Transports water Composed of tracheids and vessels
16
b.Phloem Main food carrying tissue Composed of sieve tube members and companion cells
18
B. Gymnosperm vs. Angiosperm 1.Gymnosperm Conifer vascular plants: Examples: pine tree, fir tree, cedar tree Seedless vascular plants Reproduce by spores Examples: ferns, cycads, horsetails, ginkgo
19
B. Gymnosperms group of vascular plants whose seeds are not enclosed by a ripened ovary (fruit). group of vascular plants whose seeds are not enclosed by a ripened ovary (fruit).
20
Gymnosperms
21
2. Angiosperms Vascular Seed Plants Flowering Plants Examples: water lilies, potato plants, rose potato plants, rose
24
C. Monocot vs. Dicot 1. Five Distinguishing Characteristics
25
a. Cotyledons Cotyledons are used to store nutrients in the seed until the plant is able to produce its own food through photosynthesis MONOCOTS “one cotyledon” DICOTS “two cotyledons”
26
Floral Parts (Sepals and Petals) MONOCOTS Occurs in 3’s DICOTS Occurs in 4’s or 5’s
27
Leaf Venation MONOCOTS Parallel venation DICOTS Net-like venation
28
Pores in Pollen Grains MONOCOTS Usually consist of one pore in the pollen grains DICOTS Usually consist of three pores in the pollen grains
29
Vascular Bundles (Xylem and Phloem) MONOCOTS Vascular bundles are scattered (xylem and phloem) DICOTS Vascular bundles are arranged in a circle
30
DICOTS MONOCOTS
31
Roots Roots provides support and the stems and leaves with water and dissolved minerals
32
Flowers -contains the plant's reproductive organs, and its function is to produce seeds through reproduction seeds reproductionseeds reproduction
33
Monocot or Dicot?
Similar presentations
© 2025 SlidePlayer.com. Inc.
All rights reserved.