1. Unit 3 Lesson 1 What Are Some Plant Structures?
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2. Unit 3 Lesson 1 What Are Some Plant Structures?
Types of Plants
Scientists have identified more than 310,000 types of plants on Earth.
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3. Unit 3 Lesson 1 What Are Some Plant Structures?
Types of Plants
Scientists classify plants into two groups: nonvascular plants and vascular plants.
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4. Unit 3 Lesson 1 What Are Some Plant Structures?
Types of Plants
Nonvascular plants are small plants that grow close to the ground and soak up water and minerals like a sponge. Mosses are nonvascular plants.
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5. Types of Plants Most plants you see every day are vascular plants.
Unit 3 Lesson 1 What Are Some Plant Structures?
Types of Plants
Most plants you see every day are vascular plants.
Vascular plants have a system of tubes that carry water and nutrients through the plant.
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6. Unit 3 Lesson 1 What Are Some Plant Structures?
Types of Plants
All plants that produce flowers, such as rosebushes and magnolia trees, are vascular plants.
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7. Unit 3 Lesson 1 What Are Some Plant Structures?
Types of Plants
Flowers are reproductive structures, but not all vascular plants have flowers.
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8. Unit 3 Lesson 1 What Are Some Plant Structures?
Types of Plants
Some vascular plants, such as pine trees, produce reproductive structures called cones.
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10. Unit 3 Lesson 1 What Are Some Plant Structures?
Using the Tubes
Vascular plants have structures called roots. Roots are usually underground and absorb water and minerals from the soil.
Roots also help anchor a plant in the soil.
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11. Unit 3 Lesson 1 What Are Some Plant Structures?
Using the Tubes
There are two main types of roots—fibrous roots and taproots.
Fibrous roots are thin, branching roots that grow close to the surface. Grasses and most trees have fibrous roots.
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12. Fibrous root Unit 3 Lesson 1 What Are Some Plant Structures?
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13. Unit 3 Lesson 1 What Are Some Plant Structures?
Using the Tubes
Taproots are thick, strong roots that grow deep in the soil. Some plants use taproots to store food. Carrots and beets are taproots.
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16. Unit 3 Lesson 1 What Are Some Plant Structures?
Using the Tubes
Stems are structures that have tubes to carry water, sugar, and minerals to different parts of the plant. Stems also support the plant.
Most plant stems grow above ground, but some plants have stems that remain underground.
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17. Using the Tubes There are many types of stems.
Unit 3 Lesson 1 What Are Some Plant Structures?
Using the Tubes
There are many types of stems.
Some plants, such as trees, have a single, hard, woody stem called a trunk. Shrubs have many smaller, woody stems.
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19. Unit 3 Lesson 1 What Are Some Plant Structures?
Using the Tubes
Soft, green stems support other plants, such as daisies. Many plants with soft stems sprout, grow, and die all in one season.
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21. Unit 3 Lesson 1 What Are Some Plant Structures?
Lots of Leaves
Leaves are plant parts that use sunlight to produce sugar for the plant’s food. .
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22. Unit 3 Lesson 1 What Are Some Plant Structures?
Plants Make Food
Plants make food through a process called photosynthesis.
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23. Unit 3 Lesson 1 What Are Some Plant Structures?
Lots of Leaves
Leaves come in many shapes and sizes. They can be round, heart-shaped, or triangular. They can be long, short, wide, or narrow.
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24. Lots of Leaves . Vascular plant leaves also have veins.
Unit 3 Lesson 1 What Are Some Plant Structures?
Lots of Leaves
Vascular plant leaves also have veins. .
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25. Unit 3 Lesson 1 What Are Some Plant Structures?
Plants Make Food
A substance in the leaves called chlorophyll captures energy from the sun during the day.
Chlorophyll is what makes the leaves appear green in color. It also helps plants make sugars to store in their stems, roots, and in some plants, their leaves.
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28. What kind of root is this?
Unit 3 Lesson 1 What Are Some Plant Structures?
What kind of root is this?
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29. What kind of root is this?
Unit 3 Lesson 1 What Are Some Plant Structures?
What kind of root is this?
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30. What kind of stem is this?
Unit 3 Lesson 1 What Are Some Plant Structures?
What kind of stem is this?
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31. What kind of stem is this?
Unit 3 Lesson 1 What Are Some Plant Structures?
What kind of stem is this?
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32. How do plants make their own food?
Unit 3 Lesson 1 What Are Some Plant Structures?
How do plants make their own food?
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33. Vascular or non vascular plants?
Unit 3 Lesson 1 What Are Some Plant Structures?
Vascular or non vascular plants?
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34. Vascular or non vascular plants?
Unit 3 Lesson 1 What Are Some Plant Structures?
Vascular or non vascular plants?
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35. Unit 3 Lesson 1 What Are Some Plant Structures?
What is this structure?
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