Chapter 2 – Chapter 2 – Plant Structures Plant Structures and Functionsand FunctionsLesson 1 – Lesson 1 – Vascular Vascular PlantsPlants© Brent Coley 2009 | www.mrcoley.com© Brent Coley 2009 | www.mrcoley.com

What are vascular What are vascular plants?plants?•Vascular plants Vascular plants have have

tubes that carry water tubes that carry water and nutrients up and and nutrients up and down the plant.down the plant.

treestrees

grassgrassbushebushe

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What are vascular What are vascular plants?plants?•Parts of a vascular plant:Parts of a vascular plant:– rootsroots (anchor plant, (anchor plant, taketake in food & water) in food & water)

– stemsstems (support plant, (support plant, move materials from move materials from roots to leaves) roots to leaves)

– leavesleaves (make food) (make food)

What are vascular What are vascular plants?plants?•Two kinds of vascular Two kinds of vascular

plants:plants:

1.1. seedless plantsseedless plants: grow : grow from a from a sporespore (a single (a single cell that can develop cell that can develop into a new plant)into a new plant)

fernfernss

What are vascular What are vascular plants?plants?•Two kinds of vascular Two kinds of vascular

plants:plants:

2.2. seed plantsseed plants: make & : make & grow from grow from seedsseeds (seed (seed contains undeveloped contains undeveloped plant and stored food plant and stored food in a protective coat)in a protective coat)

no no flowersflowers

flowerflowerss

•Two kinds of seed plants:Two kinds of seed plants:

1.1. angiospermsangiosperms: produce : produce flowersflowers

2.2. gymnospermsgymnosperms: do : do notnot produce flowersproduce flowers(seeds are produced(seeds are producedinside a cone)inside a cone)

Classifying Seed PlantsClassifying Seed Plants

What do flowers do?What do flowers do?•Parts of a flower:Parts of a flower:– stamenstamen (male part that (male part that produces pollen grains) produces pollen grains)

– pistilpistil (female part that (female part that produces egg cells) produces egg cells)

– ovary ovary (bottom of pistil;(bottom of pistil; stores egg cells) stores egg cells)

pistilpistil

stamen stamen (yellow tips (yellow tips are pollen are pollen grains)grains)

ovary ovary (bottom part of (bottom part of pistil)pistil)

Parts of a FlowerParts of a Flower

SeedsSeeds1.1. pollinationpollination: movement : movement

of pollen grains from a of pollen grains from a stamen to a pistil by stamen to a pistil by wind, insects, or birdswind, insects, or birds

2.2. Pollen and an egg cell Pollen and an egg cell join and form a seed.join and form a seed.

SeedsSeeds3.3. Seeds are scattered by Seeds are scattered by

wind or animals.wind or animals.

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