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Plants: Structure and Function

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. Homework: Explain the mechanisms by which materials are transported throughout the plant. What do you already know.

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Plants: Structure and Function

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  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. Homework: Explain the mechanisms by which materials are transported throughout the plant

  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

  9. 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.

  12. Plenary... 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

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