Seed PlantsSeed PlantsWhat is the difference between a seed What is the difference between a seed plant and any other plant?plant and any other plant?

What do seeds do?What do seeds do?

How do plants reproduce if How do plants reproduce if they don’t use seeds?they don’t use seeds?

What is a seed What is a seed Plant?Plant?

A seed plant is a plant that can reproduce by A seed plant is a plant that can reproduce by creating seedscreating seeds

Seeds are a form of sexual reproduction. This Seeds are a form of sexual reproduction. This means that they combine genes from 2 parents means that they combine genes from 2 parents to create on genetically similar offspringto create on genetically similar offspring

Most seed plants can also reproduce asexuallyMost seed plants can also reproduce asexually Asexual reproduction is when there is only one Asexual reproduction is when there is only one

parent which creates a genetically identical parent which creates a genetically identical offspring.offspring.

Parts of a seed plantParts of a seed plant

Parts of a seed plant Parts of a seed plant includeinclude StemsStems ConesCones RootsRoots LeavesLeaves FlowersFlowers

What is a seed?What is a seed?

A seed is the part of a A seed is the part of a plant that is created by plant that is created by combining pollination, for combining pollination, for the purpose of sexual the purpose of sexual reproduction.reproduction. The seed contains the The seed contains the

plant embryo, and enough plant embryo, and enough stored food to supply the stored food to supply the embryo until it is capable embryo until it is capable of producing it’s own food.of producing it’s own food.

How many ways can you think of that plants disperse, or spread their seeds?

The StemThe Stem The plant stem serves a few different The plant stem serves a few different

functions. functions. It is the bridge between the roots and the It is the bridge between the roots and the

flowers/leaves.flowers/leaves. It supports the rest of the plant. Typically the It supports the rest of the plant. Typically the

stem is the strongest part of the plantstem is the strongest part of the plant The stem is also responsible for transporting The stem is also responsible for transporting

water and nutrients from the roots to the other water and nutrients from the roots to the other parts of the plant where they are needed.parts of the plant where they are needed.

Question: What part of a tree would be the stem??????

RootsRoots

Roots are vital for a plants survival. What Roots are vital for a plants survival. What purposes can you think of that roots serve????purposes can you think of that roots serve???? Roots anchor the plant to the groundRoots anchor the plant to the ground They also absorb water and nutrients into the plantThey also absorb water and nutrients into the plant

Did you Know: That microscopic organisms attached to the roots of plants help them “Fix” Nitrogen. This means that they make the Nitrogen into a different type that the plant can use.

LeavesLeaves

Leaves are vital for a Leaves are vital for a plants survival.plants survival. Chloroplasts in the leaves Chloroplasts in the leaves

transform solar energy transform solar energy and carbon dioxide into and carbon dioxide into starch. Starch is the starch. Starch is the plants food.plants food.

Photosynthesis also Photosynthesis also creates’ oxygen, which we creates’ oxygen, which we breathe.breathe.

Stoma, on the underside Stoma, on the underside of leaves release water. of leaves release water. Do you know why this is?Do you know why this is?

What makes a leave green?

Chloroplasts

FlowersFlowers Flowers come in many Flowers come in many

shapes, sizes, and colors, but shapes, sizes, and colors, but they all serve the same they all serve the same purpose. Flowers are how purpose. Flowers are how many seed plants reproduce.many seed plants reproduce.

Many flowers contain both Many flowers contain both male and female parts.male and female parts.

Colored flowers often attract Colored flowers often attract certain types of insects, or certain types of insects, or birds which go from flower to birds which go from flower to flower and fertilize them.flower and fertilize them. Do you know how this Do you know how this

occurs?occurs?

Pollen, the male part of the reproduction, is sticky and sticks to bees, and other insects. The insects then carry the pollen to other flowers where some pollen may drop into the stigma, and pollinate the flower.

ConesCones A cone is like flowers, A cone is like flowers,

they are the reproductive they are the reproductive parts of the plant. parts of the plant.

There are separate male There are separate male and female cones. Each and female cones. Each tree will have both. The tree will have both. The female cones are much female cones are much larger than the male oneslarger than the male ones

1 cone contains many 1 cone contains many seeds.seeds.

What is a Cone???

Have you ever seen a cone that was opened up? Each one of the openings contained one seed.

Did you know that fire is often what causes the cones to open and release the seeds. Squirrels also open the cones to eat the seeds but often help distribute them as well

A little experimentA little experiment On a piece of paper On a piece of paper

write down a write down a prediction as to what prediction as to what will happen if you put will happen if you put a piece of celery into a piece of celery into a beaker filled with a beaker filled with water and food water and food coloring???coloring??? Why do you think this Why do you think this

will happen???will happen???

Lets try it: We will take a celery stalk with the leaves on one side and place it leaves up into a beaker full of water with food coloring. Tomorrow we will come back and see what happened.