Plants 2b:Plant Parts

PPt. by, Robin D. Seamon

FLOWERS

Plant Reproduction

PPT. by, Robin D. Seamon

How does a plant reproduce itself?

1.Asexual Reproduction: (produces exact copies of itself, off of itself)

2.Sexual Reproduction: (sperm & egg combine)

• Flower makes a seed that germinates

SporesCuttingsGraftingBulbs/ Tubers

FLOWERS

FLOWER:

Activity

•Flower dissection

•Petal Dying

•Flower Hunt

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•Flowers make the seed for the plant

•The bright color & good smell attract insects

•Insects drink the sweet nectar for food

•While doing so, they rub the pollen & unknowingly take it to another flower! (pollination)

•After pollination, the plant loses its flower & starts working on the seed

•Angiosperms create a tasty fruit to surround the seed to trick an animal into eating it. The animal will pass the seed later with a little fertilizer…

ADVANCE

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Pollination:

process by which an insect carries pollen from the male part of the flower to the female part of the flower.

This allows the flower to make a seed.

WATCH ANIMATION LINK

VIDEO Angiosperms vs. Gymnosperms

HSW: Video honeybees 4 min

Plant Parts

•Petals: brightly colored to attract insects

•Pistil: female part;

•Stigma: sticky top part of the pistil

•Ovary: inside the pistil; it has the egg (female part of the flower)

•Anther: top of the stamen; has the pollen grains (male part of the flower)

•Stamen: filament & anther DIAGRAM LINK

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PARTS OF A

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DissectionDissect your flower and label the following parts.

Male parts BLUE

Stamen

Anther

pollen

Female parts RED

Pistil

Stigma

Ovary: Egg

OTHER:

Sepals Petals

POLLINATION

Play Activity 2

Play Activity 1

Flower fertilization:

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Venus Fly Trap

HSW video (2.5 min)

PLANT LABS:1. Leaves: Identify & graph your collection into journal; view & draw fern spores;

Answer questions in Plant Journal.

2. Flowers: identify & draw 5 local spring flowers on white paper. Glue into journal.Roots: identify fibrous & taproots; draw 7 label root parts in journal; Answer questions in Plant Journal.

3. Seeds: seed dissection: label 3 parts of the seed into journal; observe pine nuts in pinecones-- sketch into journal; Answer questions in Plant Journal.

4. Stems: Compare three different types of bark. Notice the color & texture. How do the grains run? Is there a pattern? Create a bark rubbing with a dark crayon (rubbed sideways). Sketch the three specimens.

Header:

FLOWER DissectionDissect your flower, sketch and label the following parts.

Male parts BLUE

Stamen

Anther

pollen

Female parts RED

Pistil

Stigma

Ovary: Egg

OTHER:

Sepals Petals