Mr Harpers science mini lesson audio with Vascular
- Slides: 59
Mr. Harper’s science mini lesson audio with Vascular Plants with a system of tubes
Important vocabulary Vascular (VAS kyoo ler) - having tubes to transport materials within an organism, such as blood in animals, or water and sap in plants. arteries veins
Important vocabulary Vascular plant – the type of plant that has tubes that carry materials to all the plant’s cells
Plants and animals are all made up of tiny living parts called cells. All living things, and every cell in them, must have food and water or they will die. Animal cell Plant cell
Animal cells get the materials they need from blood. A circulatory system of tubes (blood vessels) carries blood to every animal cell.
Plants don’t have blood but they still must get water and food to every cell.
Nonvascular plants don’t have tubes. They can’t grow large because they wouldn’t be able to move water and nutrients to cells deep inside. moss algae
Nonvascular plants are very small plants that don’t need tubes to transport materials because every cell is close enough to the water (or air) to get what they need. Algae are tiny plants that make river water look green. There are several thousand nonvascular plants on this hand.
Vascular plants have tubes to transport food and water to cells inside the plant. This allows them to grow much bigger than plants with no tubes.
5 th graders learn about vascular plants and how their tubelike structures transport materials like water, minerals and sugar that every cell needs to live.
Vascular plants i have a system of tubes that carry water and nutrients all through the plant.
Animals have one system of tubes to carry blood to all the cells. This is called the circulatory system.
Vascular plants have two systems of tubes.
Xylem are the tubes that carry water and minerals from the roots up the stem to the leaves. tzyhe plan (ZY lum)
Sometimes the xylem are big enough to see when a plant stalk has been cut.
Phloem carry the sugar made in the leaves to all parts of the plant. (FLO em)
Phloem tubes carry a mixture of sugar and water called sap from the leaves to all parts of the plant. Tree sap
Plants have two systems of tubes called xylem §xylem transport water and up from the roots. (ZY lum) minerals §phloem (FLO um) transport sap (water and sugar) from leaves to every part of the plant. phloem
We can usually see the tubes when we look closely at a leaf.
The stems of vascular plants have bundles of xylem and phloem tubes.
Wood is made mostly old xylem tubes. o
Plants are producers. They make food. Only plants can make food.
The food that plants make is a chemical called sugar. We may think of sugar as a sweet white substance that we sprinkle on cereal. That is pure, refined sugar. All plants, even grass, has some sugar in it that animals can use for food.
Plants make sugar in their leaves. A green material in the leaves called chlorophyll (CLOR ah fil) turns light energy from the sun into chemical energy (sugar).
Plants can’t grow without sugar energy. Animals can’t live xxwithout sugar energy.
Only plant cells that contain chlorophyll can make sugar.
Chlorophyll is the reason plant leaves are green. that
Chlorophyll in plant leaves is what converts sunlight energy into sugar.
Phloem tubes carry a sticky mixture of water and sugar called sap.
The phloem tubes transport the sugar made in the leaves to every part of the plant for growth and storage.
Different plants store sugar energy in different ways. (flowers) (fruit) (roots) (stalks) (leaves) (seeds)
Animals eat plants to get the sugar energy to live and grow.
The process of plants turning sunlight energy into chemical energy is called photosynthesis. (foh toh SIN theh sis)
Plants must have three things in order to make food. (for photosynthesis light to happen) water ? CO 2 (Carbon dioxide) ? ?
In order to make food plants must have: light CO 2 (Carbon dioxide) water
CO 2 (carbon dioxide) is a gas that makes up less than 1% of Earth’s atmosphere. Plants can’t make sugar without CO 2. Animals release CO 2 into the air as a waste product when they breathe.
Plants take in CO 2 and use as they make sugar (chemical energy). Plants release oxygen as a waste product as they make sugar. it
Plants can’t live without and must release oxygen. CO 2 Animals can’t live without oxygen and must release CO 2.
This oxygen cycle is very important for life on Earth.
Photosynthesis works like this Light + (energy) H 2 O + CO 2 (water) (carbon dioxide) sugar + oxygen C 6 H 12 O 6 O 2
H 2 O and CO 2 molecules are pressed together to become sugar molecules by the sun’s energy. A spare oxygen molecule is released in the process.
OK, let’s see how much you can remember.
Review: What waste gas is released by plants? ?
Review: What waste gas is released by plants? Oxygen oxygen
Review: What gas is needed by plants? ?
Review: What gas is needed plants? Carbon dioxide CO 2 by CO 2
Review: What gas is released by animals as they and breathe? live
Review: What waste gas is released by animals as they live and breathe? Carbon dioxide CO 2
Review: What is the name of the process in which plants make food from sunlight?
Review: What is the process in which plants make food from sunlight? Photosynthesis
Review: In what part of the plant is food made during photosynthesis?
Review: In what part of the plant is food made during photosynthesis? sugar The leaves
Review: In what part of the plant is food made during photosynthesis? The leaves sugar
Review: What is the name for the food chemical that plants make during photosynthesis? Photosynthesis sunlight + water + CO 2 ? sugar + oxygen ?
Review: What is the name for the food chemical that plants make during photosynthesis? sugar Photosynthesis sunlight + water + CO 2 sugar + oxygen
Review: What is the name for the food chemical that plants make during photosynthesis? Photosynthesis sunlight + water + CO 2 sugar + oxygen
Where is sugar made?
Where is sugar made? In the leaves of plants
Learn more with these Brainpop cartoons: • Photosynthesis • Plant Growth