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Science

Published on Nov 24, 2015

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PRESENTATION OUTLINE

1.

What is a plant?

  • Plants are autotrophs
  • They are eukaryote
  • They have cell walls
  • Made by Colby white
Photo by Swami Stream
2.

Adaptations to land

  • They must have ways to get water
  • They must be able to get nutrition for their surroundings
  • They must be able to support their bodies and reproduction
Photo by Sprengben [why not get a friend]
3.

Nonvascular plants

  • Nonvascular plants are Plants that absorb there water and food
  • They don't have roots
  • They absorb water from their surroundings
  • Most have thin cell wall
4.

Mosses

  • There are more than 10,000 different species of moss
  • Rhizoids absorb water for moss
  • The sporophyte generates growth
Photo by Daniel*1977
5.

Liverworts

  • Their are more than 8,000 species
  • They are usually found in moist rocks
  • They are named after there shape
Photo by wackybadger
6.

Horn worts

  • There are fewer then 100 species
  • They are found on trees and rocks
  • They are named by there curved structure
Photo by John Game
7.

Seedless vascular plants

  • Have real vascular tissue
  • Old trees and ferns that have been growing for a long time
  • And when the leaves fall off they leave scares
Photo by BlueRidgeKitties
8.

Ferns

  • Have more than 12,000 species
  • They have true stems, roots, and leaves
  • Stems of the fern are underground
  • The leaves grow upward from the top of the stem
  • While the roots grow downward from the bottom of the them
Photo by blhphotography
9.

Horsetail

  • Very few species of horsetails
  • Horsetails are jointed
  • Long, coarse, needle-like branches grow around the joint
Photo by wackybadger
10.

Club mosses

  • They have true stems, roots, and leaves
  • Club mosses and ferns have similar life cycle
  • There are only a few hundred species of club mosses
Photo by Taraji Blue
11.

Seed plants

  • They have vascular tissue
  • They use pollen and seeds to reproduce
  • They have body plans that include roots, stems, and leaves
  • And they have complex life cycles
Photo by London Permaculture
12.

Vascular tissue

  • There are two types of vascular tissue
  • Phloem is one type
  • Xylem is the other
13.

Pollen and seed

  • Live in variety of envirments
  • Do not need water for sperm to swim
  • They produce pollen
14.

Seed structure

  • A seed has three major parts
  • The the outer part of the seed is called seed coat
  • The seed coat acts like plastic wrap
15.

Seed dispersal

  • The scattering of seed is called dispersal
  • One method involves other organisms
  • A second means dispersal of water
16.

Germination

  • After a seed is dispersed, it may remain inactive for a while before it germinates
  • Germination happens when the embryo begins to grow
  • It begins when the seed absorbs water
17.

Roots

  • Roots hold the plant in the
  • They also absorb water
  • The can sometimes store food
18.

Stems

  • Cary's substances between plant roots
  • It also provides support
  • If there was no stem to hold up leaves there would be no plants
19.

Leaves

  • Leaves capture the suns energy and make food
  • Leaves are what makes food
20.

Gymnosperm

  • Produces naked seeds
  • The oldest type of seed
  • Been on earth about 350 million years ago
21.

Examples of gymnosperm

  • Cycads
  • Conifers
  • Ginkgoes
22.

Angiosperm

  • Are also known as flowering plants
  • They produce flowers
  • Then they produce gymnosperm
23.

Monocot vs dicot

  • Monocot are grasses
  • Dicot are roses and violets
  • to has four or five petals
24.

Plant tropism

  • They are important to stimuli in which plants show growth
  • They get more light by growing toward the light
  • Root grow downward with gravity while stems do the opposite

Colby White