1. Multicellular

2. Eukaryote

3. Have cell walls made of cellulose

CHARACTERISTICS OF PLANTS

4. Carry out photosynthesis using chlorophyll a & b 5. Most are autotrophs

•  A few are parasites (live on living organisms) or saprobes (live on dead organisms)

6. Store energy as starch (carbohydrates)

Briefly define the red terms

Use the blank space

here.

Multicellular Eukaryote

cellulose

autotrophs

WHAT PLANTS NEED TO SURVIVE: 1. Sunlight

2. Water

3. Minerals- naturally occurring solid substance

WHAT PLANTS NEED TO SURVIVE: 4. Gas Exchange (CO2 for O2) 5. Transport of water and nutrients throughout the plant body

Photosynthesis- the process of converting light energy to chemical energy and storing it in the bonds of sugar.

Water Carbon Dioxide Glucose Oxygen

Remember Photosynthesis: 6H2O + 6CO2 → C6H12O6 + 6O2

Illustrate what plants need to survive in the blank space.

EVOLUTION OF PLANTS ⦿ Plants most likely evolved from an organism like

the freshwater multicellular green algae living today.

EVOLUTION OF PLANTS Plants had to overcome “challenges” as they moved from water to land:

1.  Adapt to be able to acquire water

2.  Adapt features to transport water

3.  Be able to conserve water more efficiently

EVOLUTION OF PLANTS

4 MAIN PLANT GROUPS:

1.  Bryophytes (Mosses and their relatives)

2.  Seedless Vascular (Ferns and their relatives)

4 MAIN PLANT GROUPS: 1.  Gymnosperms

(Cone-bearing plants)

2.  Angiosperms (Flowering plants)

THE 3 MOST IMPORTANT FEATURES THAT ARE USED TO CLASSIFY THE PLANTS INTO THESE 4 GROUPS ARE:

1.  Water- conducting tissue (vascular)

2.  Seeds 3.  Flowers

What is the importance of this diagram?

VASCULAR PLANTS – Contains tubelike cells for transport

• Can grow large and farther away from water source. • Examples: trees, flowers, & ferns

VASCULAR PLANTS VS. NONVASCULAR PLANTS

NONVASCULAR PLANTS – Does not contain tube-like cells for transport.

• Water and nutrients travel in an out of cells by diffusion and osmosis. • Small and grows close to water source.

VASCULAR PLANTS VS. NONVASCULAR PLANTS

BRYOPHYTES

BRYOPHYTES - NONVASCULAR PLANTS require moist environment •  Plants draw up water by osmosis only a few centimeters

above the ground. •  Low growing plants that are found in moist, shaded

areas. •  Includes: Mosses, Hornworts, and Liverworts

BRYOPHYTES RHIZOIDS – A LONG THIN CELL THAT ANCHORS MOSS TO THE GROUND

• Found in mosses and absorbs water and minerals from the soil.

USES OF MOSS

Peat – Dead moss that can be burned as fuel or added to soil to help retain water and

increase acidity of the soil.