Chapter #6

Plants

Section 6.1 Plant Classification• Chloroplast- where photosynthesis takes

place.• Chlorophyll- is a chemical that gives plants

their green color and traps light energy.• Photosynthesis- is the process in which

plants use water, carbon dioxide, and energy from the sun to make food

• 6 CO2 + 6H2O C6H12O6 + 6O2

• Photosynthesis separates plants from animals

• Cell wall- give plant structure (No Bones)

2 Groups of plants1. Vascular- have tube like

cells in their roots, stems and leaves to carry food and water. Most chloroplasts are in the leaves.

2. Nonvascular- don’t have tube like cells in their stems and leaves. Grow close to the ground in moist areas. No Roots! Hair like cells take up water by osmosis.

• Osmosis- is the movement of water across a cell membrane.

• Moss- is a small, nonvascular plant that has both stems and leaves but NO roots.

• Liverworts- no roots, stems or leaves. Is often flat, slippery layer of green cells that lies close to the ground.

• DIFFERENCE between mosses and liverworts is in the arrangement of the leaves…Liverworts grow in 2 or 3 flattened rows…Mosses grow all around the stem

6.2 Nonvascular Plants

• Sexual Reproduction is the forming of a new organism by the union of sperm and egg.

• Fertilization joining of egg and sperm• Non Vascular plants reproduce by spores.

6.3 Vascular Plants

• Xylem cells that carry water and dissolved mineral UP the roots to the leaves.

• Phloem cells that carry food made in the leaves DOWN to all parts of the plant.

• Fern vascular plant the reproduces with spores.

Conifers are plants that produce seeds in cones.

• Pine cones (left) and juniper “berries” (cones, right) • Lumber supply ¾ is from Conifers.

• Seed is the part of a plant that contains a new young plant and stored food.

• Embryo is an organism in its earliest stages of growth.

• Pollen are tiny grains of seed plants in which sperm develop.

Flowering plant is a vascular plant that produces seeds inside a flower.

Flower is the reproductive part of the plant. Male parts produce pollen & female produce eggs.

There are more flowering plants than non-flowering plants.

Apple Tree

• http://images.google.com/imgres?imgurl=http://biology.unm.edu/ccouncil/Biology_203/Images/Non-floweringPlants/fernlifecycle.jpeg&imgrefurl=http://biology.unm.edu/ccouncil/Biology_203/Summaries/Non-floweringPlants.htm&h=828&w=675&sz=147&hl=en&start=5&tbnid=QBFNbbYTzR91cM:&tbnh=144&tbnw=117&prev=/images%3Fq%3Dnon%2Bvascular%2Bplant%2Bspores%26svnum%3D10%26hl%3Den%26lr%3D

• “Apple Tree”.http://www.colorwithin.net/index.php?pagename=deciduous_apple

• “Pollen”.http://mips.gsf.de/proj/thal/ens/pollen.html• “Peanut”.http://qdchilli.hisupplier.com/selling-leads/30948/supply-

peanut.html