Episode 3
Parts of a plant
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Plant cells
Plant cells Main article: Plant cell Plant cell structure Plant cells have distinctive features that other eukaryotic cells (such as those of animals) lack. These include the large water-filled central vacuole , chloroplasts , and the strong flexible cell wall , which is outside the cell membrane . Chloroplasts are derived from what was once a symbiosis of a non-photosynthetic cell and photosynthetic cyanobacteria . The cell wall, made mostly of cellulose , allows plant cells to swell up with water without bursting. The vacuole allows the cell to change in size while the amount of cytoplasm stays the same. [54] Plant structure Further information: Plant anatomy and Plant morphology Anatomy of a seed plant. 1. Shoot system. 2. Root system. 3. Hypocotyl . 4. Terminal bud . 5. Leaf blade. 6. Internode. 7. Axillary bud . 8. Petiole . 9. Stem. 10. Node. 11. Tap root . 12. Root hairs . 13. Root tip. 14. Root cap Most plants are multicellular . Plant cells differentiate into
the functions of some parts of a plant
parts of a plant A plant is made up of many different parts. The three main parts are: the roots, the leaves, and the stem. Each part has a set of jobs to do to keep the plant healthy. The roots absorb water and minerals from the soil and anchor the plant in the ground. The stem supports the plant above ground, and carries the water and minerals to the leaves. The leaves collect energy from the sun and make food for the plant, using an amazing process called photosynthesis.