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Plants: Roots, Stems, Leaves






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Plants: Roots, Stems, Leaves. Students will be able to describe the aspects of roots, stems, and leaves and their impact on our daily lives. Plants. Plants and Animals interact on a daily basis. Plants are used by animals for food.
Plants: Roots, Stems, Leaves

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Plants roots stems leaves l.jpgSlide 1

Plants: Roots, Stems, Leaves

Students will be able to describe the aspects of roots, stems, and leaves and their impact on our daily lives.

Plants l.jpgSlide 2

Plants

  • Plants and Animals interact on a daily basis.

  • Plants are used by animals for food.

  • Plants are used to make the oxygen necessary for animals to breathe.

  • Plants are different from animals, however their cells do contain a nucleus.

Plants the root l.jpgSlide 3

Plants: The Root

  • The root is a very important part of the plant and it has the following functions:

  • To help grip the plant to the soil.

  • To absorb water and minerals from the soil.

  • To store food.

  • To propagate or make new plants.

Plants the roots l.jpgSlide 4

Plants: The Roots

  • The typical root has four parts:

  • Primary root- Grows downward and is the thickest.

  • Secondary root- Connected to the primary root, they are smaller and grow to the side.

  • Root cap- Protects the root and allows it to “drill” through the soil.

Plants the roots5 l.jpgSlide 5

Plants: The Roots

4) Root hairs- absorb water and nutrients from the soil.

  • Some of the food we eat are plant roots-

    • Potatoes

    • Carrots

    • Onions

    • Beets

Plants the stem l.jpgSlide 6

Plants: The Stem

  • The stem has two primary functions:

  • Maintain the flowers and leaves at a certain distance from the soil.

  • Carry the nutrients and water.

Plants the stem7 l.jpgSlide 7

Plants: The Stem

  • The stem has several different parts:

  • Main stem- The most important stem, it is the stem that is most easily identified (trunk of a tree).

  • Secondary stem- Smalls stems that grow from the main stem (tree branches).

  • Nodes- Bulges in the stems were leaves grow.

Plants the stem8 l.jpgSlide 8

Plants: The Stem

  • Internodes- Spaces between the nodes.

  • We do eat plant stems:

    • Celery

    • Asparagus

    • Sugar Cane

Plants the buds l.jpgSlide 9

Plants: The Buds

  • Buds are responsible for plant growth. Buds can either be new stems, leaves, or flowers.

  • Buds are three parts:

  • Main terminal bud- The bud in charge of the upward growth of the plant.

  • Secondary terminal buds- Come from secondary stems, they make the secondary stems grow.

Plants the buds10 l.jpgSlide 10

Plants: The Buds

3) Lateral buds- Are on the stem nodes, leaves and flowers grown from them.

  • We do eat buds from plants-

    • Artichokes

    • Cabbage

Plants the leaves l.jpgSlide 11

Plants: The Leaves

  • The leaves are probably the most important aspect of the plant, because they are in charge of photosynthesis.

  • There are many different sizes and shapes of leaves but leaves tend to have the same parts.

Plants the leaves12 l.jpgSlide 12

Plants: The Leaves

1) The Blade- The expanded part of the leaf. When people think of a leaf or draw a leaf it is usually the blade.

  • Veins- Wrinkles or pipes in the leaves, the central vein is called the midrib.

    2) The Petiole- Connects the stem to the blade. Not every leaf has a petiole and are called stalkless.

Plants the seeds l.jpgSlide 13

Plants: The Seeds

  • Seeds are necessary for some plants to reproduce.

  • Each seed has several parts:

  • Embryo- the little plant

  • Endosperm- food supply in the seed

  • Seed Coat- outer layer of the seed

Gymnosperms l.jpgSlide 14

Gymnosperms

  • Gymnosperms (“naked seed”)- cone bearing plants are gymnosperms.

  • Pinophyta - Conifers

  • Ginkgophyta - Ginkgo

  • Cycadophyta - Cycads

  • Gnetophyta - Gnetum, Ephedra, Welwitschia

Angiosperms l.jpgSlide 15

Angiosperms

  • Plants that produce flowers or fruits are called angiosperms (“flowering plants”).

  • Most species on the planet are angiosperms.

Plants the seeds16 l.jpgSlide 16

Plants: The Seeds

  • We do eat the seeds or fruits of plants-

    • Apples

    • Oranges

    • Beans

    • Grains

    • Nuts

    • Spices


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