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The Plant Kingdom PowerPoint PPT Presentation


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The Plant Kingdom. PART TWO. PLANTS. Nonvascular. Vascular. 2 Main Types of Plants. 1) vascular. 2) nonvascular. Mosses & liverworts. plants that lack tube-like cells and do not have “true” roots, stems, & leaves. Nonvascular-. Also called bryophytes .

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The Plant Kingdom

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The plant kingdom

The

Plant

Kingdom

PART TWO


The plant kingdom

PLANTS

Nonvascular

Vascular

2 Main Types of Plants

1) vascular

2) nonvascular

Mosses & liverworts

plants that lack tube-like cells and do not have “true” roots, stems, & leaves

Nonvascular-

  • Also called bryophytes


The plant kingdom

2 Main Types of Nonvascular Plants

A small simple nonvascular plant that has both stems and leaves…but NO ROOTS

1) moss-

  • Mosses are considered nonvascular and are grouped with liverworts because:

a) their vascular (inner) tissue is very simple

b) they both have similar life cycles


The plant kingdom

Nonvascular Plants: Moss

Characteristics of Moss:

  • fine soft stems

  • grow upright in “mats”

  • leaves are only one or two cells thick

  • leaves grow from all sides of the stem

  • moss species can be classified by their leaves based on:

a) Placement of leaves on the stem

b) Shape of leaves


The plant kingdom

Nonvascular Plants: Mosses

4 uses of mosses

1) Food for animals

EX: worms & snails eat moss

2) They help hold soil in place to keep it from washing away

3) Some mosses live on rocks and break them down

moss that is added to soil to increase the amount of water it holds

4) Peat moss-


The plant kingdom

1) female reproductive cell

EGG

2) male reproductive cell

SPERM

Nonvascular Plants: Mosses

Moss Life Cycle

Sexual reproduction-

  • form a new organism by the union of 2 reproductive cells

  • Both are located at the tips of the mosses leafy stem

fertilization

  • the joining of the egg and the sperm


The plant kingdom

Nonvascular Plants: Mosses

Moss Life Cycle

  • sperm and egg of mosses form at the tips of the leafy stems

  • sperm of mosses and liverworts must swim to the egg for fertilization

  • fertilization

2) A stalk grows from a fertalized egg

3) Brown capsule forms at the end of the stalk (stem)

Life Cylce

4) Brown capsule contains spores

5) Spores are blown away from parent plant…by wind

6) They land and grow into new leafy plants


The plant kingdom

2 Main Types of Nonvascular Plants

A small simple nonvascular plant that do NOT have roots, stems, or leaves

2) liverwort-

  • H2O and other materials are distributed throughout their bodies by:

a) osmosis

b) diffusion


The plant kingdom

Nonvascular Plants: liverworts

General Characteristics facts about liverworts

1) simplest nonvascular plant

2) flat body

3) slippery layer of green cells on the ground

4) leaves grow in 2-3 flattened rows along the stem


The plant kingdom

What two types of nonvascular plants are shown on this rock?

1) Moss

2) Liverwort


The plant kingdom

Slide Questions Part Two (slides 27-36)

Directions:Answer the following questions.

1) List the main types of plants

2) Define nonvascular.

3) Define moss and list 3 of the 5 main characteristics of mosses.

4) Why are mosses considered nonvascular if they appear to have a stem and a leaf?

5) List the two ways that moss species are classified.


The plant kingdom

Slide Questions Part Two (slides 27-36)

Directions:Answer the following questions.

6) List the 4 uses of moss.

7) Explain how mosses reproduce.

8) Define fertilization.

9) Define liverwort. How so they take in water?

10) List two of the four characteristics of liverworts.


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