Introduction To Plant Science - PowerPoint PPT Presentation

1 / 24
About This Presentation
Title:

Introduction To Plant Science

Description:

What roles do plants serve in the ecosystem ... Plants differ from animals in several ways ... Deciduous- plants that lose their leaves in the winter. ... – PowerPoint PPT presentation

Number of Views:34
Avg rating:3.0/5.0
Slides: 25
Provided by: glenrosear
Category:

less

Transcript and Presenter's Notes

Title: Introduction To Plant Science


1
Introduction To Plant Science
  • Introduction To AgriScience and Technology
  • GHS
  • Mr. Ham

2
Objective 1.1What roles do plants serve in the
ecosystem
  • Plants serve several roles in our ecosystem by
    providing the following items
  • Oxygen
  • Food
  • Reduce soil erosion
  • Medicines

3
Objective 1.2How plant differ from animal
  • Plants differ from animals in several ways
  • Plants produce their own food with the aid of
    nutrients from the soil.
  • Plants are stationary.
  • Plants have rigid cell walls with cell membranes
    inside.
  • Plants utilize carbon dioxide and give off oxygen.

4
Objective 1.3List how plants and animals are
alike.
  • Plants and animals are alike in several ways.
  • They have a life cycle.
  • They carry on life processes, such as
    circulation, respiration and growth.
  • They are made of cells.
  • They must have food.

5
Objective 1.4List three major factors that
affect plant growth
  • Major factors in climate that effect plant growth
    include
  • Temperature
  • Warm season plants start growing in the spring
    and finish in the fall. I.e., bananas, oranges,
    cotton and corn.
  • Cool season plants have a life cycle that begins
    in the fall and ends when summer begins. I.e.,
    wheat, rye, and oats.

6
Objective 1.4 (cont.)
  • Precipitation
  • Light

7
Objective 1.5Define life cycle in terms of
plants and how they are classified
  • Life Cycle refers to the length of the plants
    life.
  • Plants can be classified into three groups on the
    basis of their life cycle
  • Annuals- complete life within one year.
  • Biennials- complete life cycle in two years.
  • Perennials- plants live for more than two years.
  • Deciduous- plants that lose their leaves in the
    winter.
  • Evergreens- plants that retain their leaves year
    round.
  • Plants may be perennials but only used as an
    annual in the agricultural industry. I.e. cotton

8
Objective 1.6List the different parts of a plant
  • Parts of the plants are of two major kinds
  • Vegetative
  • Leaves- makes food for the plant through a
    process known as photosynthesis.
  • Blade -Veins
  • Epidermis -Stomata
  • Internal cells -Waxy coating
  • Petiole -Stipule

9
Parts of a Leaf
Waxy Coating
Stomata
Stipule
Stipule
Petiole
Petiole
Vein
10
Objective 1.7List the two different types of
leaves
  • Leaves are divided into two groups
  • Simple
  • Compound

11
Simple Leaf
12
Compound Leaf
13
Objective 1.8List the three ways leaves attach
to the stem
  • Leaves attach to the stem in several different
    ways.
  • Alternate
  • Opposite
  • Whorled

14
Alternate Attachment

15
Opposite Attachment

16
Whorled Attachment
17
Objective 1.9List the different functions of the
stem
  • The stem supports the leaves and flowers.
  • The stem transport water and other materials.
  • The stems also store food.

18
Objective 1.10List the different parts of the
stem
  • Bark
  • Cortex
  • Phloem
  • Cambium
  • Xylem
  • Pith

19

20
Xylem Pholem

21
Objective 1.11List the types and roles of roots
  • Role of roots
  • Roots anchor the plant.
  • Roots take in water and minerals.
  • Roots store energy.
  • Types of roots
  • Taproots
  • Fibrous roots

22
Taproot

23
Fibrous Root

24
Taproot vs. Fibrous
Write a Comment
User Comments (0)
About PowerShow.com