1. Plants: Structure and Function
Objectives: F3.1
Describe the general structure of vascular plants
Describe the structures of the various types of tissues in vascular plants.

2. What do you already know...
Name the process that occurs within the mitochondria of living cells.
What is the equation for this process?
Name the process that occurs within the leaves of green plants.
Why do plants carry out this process?
What two substances do plants make, during photosynthesis, that animals need?
What substance do animals make, during respiration, that plants need?

3. Classifying Plants
Kingdom Plantae can be classified into two major divisions:
Vascular Plants (ie: Ferns, Trees)
Nonvascular Plants (ie: Mosses)
In this unit we will be learning about vascular plants: their structure and how they function.

4. A Typical Vascular Plant

5. Major Plant Parts and Functions
Explain what (general) function each of these plant parts carry out.
Roots:
Stem:
Leaves:
Flowers:

6. The "Typical" Plant Body The Shoot System (Leaves, Stem, Flowers)
Above ground (usually)
Elevates the plant above the soil
Many functions including:
photosynthesis
reproduction & dispersal
food and water transportation in ________ and ___________
The Root System (Roots)
Underground (usually)
Anchors the plant in the soil
Absorb water and nutrients
Transports water and nutrients to the _________
Food Storage

7. The tissues of a plant are organized into three tissue systems: the dermal tissue system, the ground tissue system, and the vascular tissue system.
Use information from the table to answer the questions below it.
                                               
Plant Tissues...
The tissues of a plant are organized into three tissue systems:
1) the dermal tissue system
2) the ground tissue system
3) the vascular tissue system
Work Sheet Activity

8. Answers Plant Tissue Structure Function Location Dermal Tissue
Generally a single layer of cells
The "skin" of the plant
‘Epidermis’
protection • prevention of water loss (waxy cuticle)
Outermost cell layer
Ground Tissue
Makes up the bulk of the plant
Made up of
Parenchyma cells
Collenchyma cells
Schlerenchyma cells
In roots it is called pith
photosynthesis • food storage • regeneration • support • protection
Middle cell layer
Vascular Tissue
Xylem cells
Phloem cells
Transport of water, ions, minerals, and food
Secondary role in support
Innermost cell layer

9. Dermal Tissue: Vascular Tissue: Xylem Phloem
Tracheids Vessel members
Dermal Tissue: Vascular Tissue: Xylem Phloem

10. Cell Types in the Plant Body...
Parenchyma: Consist of living cells that make up plant body.
Involved in photosynthesis and nutrient and water storage
Functions in healing and regeneration of plant parts
Collenchyma: Consist of living cells/Just below the epidermis
Help strengthen the plant
Thicker, flexible cell walls (flexible plant parts)
Sclerenchyma: Usually dead at maturity. 
Secondary cell wall made of cellulose
Provides strength and rigidness to cell

11. More Plant Cells... Xylem: Vascular tissue
Carries water and dissolved minerals up from the roots to other plant parts
Phloem: Vascular tissue
Transports sugars, synthesized in the leaves throughout the plant and down to the roots for storage.
** all of these cells arise from meristematic cells (undifferentiated cells)

12. Homework (pg. 500 of your text)
1. Name 3 plant tissues.
2. Name the specific type of tissue or cell that performs each of the following functions:
Provides a waterproof layer
Transports sugars throughout the plant
Transports water and minerals up the plant
Stores carbohydrates
Forms a hard shell and provides support