Plants Challenge Practice
| # | Answer |
|---|---|
| 1 | A plant is a living organism that makes its own food, usually using sunlight. |
| 2 | Root, stem, leaf, flower, fruit, or seed. |
| 3 | Roots anchor the plant and absorb water and minerals from the soil. |
| 4 | Stems support the plant and move water and food through it. |
| 5 | Leaves use sunlight, water, and carbon dioxide to make food. |
| 6 | Carbon dioxide. |
| 7 | Oxygen. |
| 8 | Photosynthesis is the process plants use to make food from sunlight, water, and carbon dioxide. |
| 9 | Because they contain chlorophyll, which helps absorb light. |
| 10 | Chlorophyll is the green pigment in plants that absorbs light for photosynthesis. |
| 11 | True. |
| 12 | True. |
| 13 | Stomata. |
| 14 | They let gases move in and out of the leaf. |
| 15 | Transpiration is the loss of water vapor from a plant, mainly through its leaves. |
| 16 | It helps move water through the plant and cools the plant. |
| 17 | The fruit. |
| 18 | Flowers help with reproduction by producing seeds. |
| 19 | Pollination is the transfer of pollen from one flower part to another, often to help fertilization happen. |
| 20 | Bee, butterfly, bird, or bat. |
| 21 | A flower helps make seeds, and a fruit often develops from the flower and contains seeds. |
| 22 | They need minerals to grow properly and carry out life processes. |
| 23 | Xylem carries water and minerals from the roots to the rest of the plant. |
| 24 | Phloem carries food made in the leaves to other parts of the plant. |
| 25 | It will wilt, stop growing properly, and may die. |
| 26 | Because light is needed for photosynthesis, so plants grow toward it to get more light. |
| 27 | Photosynthesis would be affected. |
| 28 | Without light, the plant cannot carry out photosynthesis effectively, so it cannot make enough food. |
| 29 | The leaves may droop or wilt, and the soil may become dry. |
| 30 | First: roots absorb water. Second: stem moves materials. Third: leaves make food. |