Plants: Structure and Function
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The document discusses plant structure and function, categorizing them into vascular and nonvascular types, each with distinct parts like roots, stems, and leaves. It explains the process of photosynthesis, highlighting how plants convert sunlight, water, and carbon dioxide into sugar while releasing oxygen. Additionally, it touches on plant reproduction, distinguishing between seed-producing and non-seed-producing plants.
Plants: Structure and Function
- 1. PLANTS: structure and function
- 2. Plants: Grouped by characteristics Vascular Three main parts: roots, stems and leaves Roots can be different sizes: Fibrous and tap roots Storage roots; beets, carrots, sweet potatoes and turnips Roots have different functions: anchoring the plant, taking in water and minerals, and store food. Nonvascular Simple; most grow in moist places No vascular tissues.
- 3. Vascular Plants: Stems Function of stems Support, transport of water & food Most stems grow upward Some stems grow sideward Types of stems Green Woody Transport of materials Xylem & phloem
- 4. Vascular Plants: Leaves Leaves come in variety of shapes and sizes Leaves are arranged in different ways
- 5. What do plants do? All plants are alike in one way. They need three things in order to survive Water carbon dioxide energy from sunlight What do you suppose the plants use these things for? Classify – to sort into groups based on similarities and differences
- 6. They turn it into sugar! photosynthesis – a process by which plants change light energy from the sun and use it to make sugar Plants and some protists conduct photosynthesis.
- 7. Photosynthesis A movie of photosynthesis chlorophyll – the green substance found in plants that traps energy from the sun and gives plants their green color carbon dioxide – a gas found in air As a plant makes sugar, oxygen is released When the plant uses the sugar, water and carbon dioxide are released.
- 8. How Do Plants Get Energy Plant leaves change light energy into energy the plant can use. Stomata are tiny holes on the bottom of the leaf that let air (CO2.) in and (O2)out. They get sunlight, water, and air (CO2.) The veins of a leaf bring water and minerals to the leaf from the stems and roots. Roots get water and minerals directly from the soil.
- 9. Because of this process Scientists are able to classify living things by the way they get their food. Plants are producers (autotrophs) producer – it is a living thing that uses sunlight to make sugar. This sugar feeds others.
- 10. Plants are classified by characteristics. Plants that make seeds Plants that do not make seeds Flowering Plants Conifers Ferns Mosses Plants reproduce differently Reproduce – it means “to make more of the same kind”
- 11. a protective covering that surrounds the seed anchor the plant in place and absorb water and other minerals from the soil. carries water and food to the rest of the plant. makes the plant's food. makes seeds.
- 12. Some flowering plants are dicot seed – a seed that has two seed leaves that contain stored food monocot seed – a seed that has one seed leaf and stored food outside the seed leaf