These vessels work together to transport water, food, and waste to and from all
parts of the plant. The main parts of vascular plants are roots, stems, and leaves.
CHAPTER 2
Plant Structures and Functions
How do plants produce, transport, and use food?
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Lesson
1
Vascular Plants
PAGE
70
Lesson
2
Plant Transport Systems PAGE
80
Lesson
3
Photosynthesis and Respiration PAGE
90
5 LS 2. Plants and animals have structures for respiration, digestion, waste disposal, and transport of materials.
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Literature POETRY ELA R 5.3.5. Describe the function and effect of common literary devices (e.g., imagery, metaphor, symbolism). ELA W 5.2.3. Write research reports about important ideas, issues, or events by using the following guidelines: a. Frame questions that direct the investigation b. Establish a controlling idea or topic. c. Develop the topic with simple facts, details, examples, and explanations.
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from ECHOES FOR THE EYE
Against the blowing sky the stiff fabric of branches and twigs grows up and up into the light Spreading unseen beneath the tree a tangle of roots — secret fingers that feel their way through the unmapped country underground Veins thread their thin pattern through every leaf Look how they hold each green hand open to the sun collecting light and the green diamond-drops of water!
Write About It Response to Literature The poet creates a vivid impression of a leaf collecting light and water. Do print and online research to find out what happens as a plant grows new leaves. Then, write an explanation of this sequence of events.
-Journal Write about it online @
www.macmillanmh.com
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Lesson 1
Vascular Plants
Cactus plants need to store and retain water. Their spines protect the stored water from thirsty animals. What do cactus plants have in common with other vascular plants?
70
Building block lesson for 5 LS 2.a. Students know many multicellular organisms have specialized structures to support the transport of materials.
ENGAGE
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Materials
What are the parts of vascular plants? Purpose You have learned that all vascular plants have vessels in their stems. What else do vascular plants have in common? You will examine several vascular plants to find out.
• cactus plant • water plant
Procedure
• flowering plant
Examine each plant. Look at the roots, stems, and leaves.
• disposable plates • gloves
Record Data Make a chart for each plant. Draw what the plant’s root, stem, and leaves look like. Record the color, size, and shape of each plant part.
Step
Compare Which of the plant parts look similar? Which parts look different?
Draw Conclusions How do the stems of the water plant and the cactus compare? Why do they have these differences?
Infer Would the flowering plant be able to survive in a hot, dry area? Why or why not?
Infer Would the water plant be able to survive
Step
Flowering Plants What the Plant Color Part Looks Like
Size
Shape
Other Observations
out of the water? Why or why not?
Explore More Look at the plants where you live. Observe three plants and compare them to these three plants. Based on your observations, decide if each of the plants you observed are also vascular plants. 5 IE 6.g. Record data by using appropriate graphic representations (including charts, graphs, and labeled diagrams) and make inferences based on those data.
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▶ Main Idea Vascular plants are classified as seedless and seed plants. Most seed plants have flowers.
▶ Vocabulary spore , p. 73 seed , p. 73 angiosperm , p. 74 gymnosperm , p. 75 pollination , p. 76
-Glossary @
www.macmillanmh.com
▶ Reading Skill Sequence 4W`ab
