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Chp 5 Science
| Question | Answer |
|---|---|
| Epidermis | the thin outer layer of cells |
| Xylem | moves water and minerals to other parts in the plant. |
| Phloem | carries sugar made in the leaves throughout the plant. |
| Stoma | A small opening water and gas pass in and out of the plant through. |
| Guard cells | work together to open and close a leaf's stoma. |
| Transpiration | loss of water from the leaf. |
| Some plants have one large root called a | taproot with many roots growing out of it. |
| _____ are taproots that store extra food made by the plant. | Carrots |
| ____ are roots that store water. | Carrots |
| Describe two functions of stems in flowering plants. | Stems provide support for the plant as it grows. The stem also has xylem and phloem, which move water, minerals, and glucose throughout the plant. |
| Plants with stems that are green and are easy to bend are called | Herbaceous plants. |
| Guard cells | open and close a leaf's stoma. |
| Photosynthesis | process in which a plant makes glucose. |
| Cellular respiration | process by which cells break down glucose with the release of energy. |
| During photosynthesis plants use_____ from the sun, _____ from the air, and __ to make glucose and oxygen. | light energy, carbon dioxide, and water. |
| cuticle | waxy layer that may cover a leaf and slow water loss. |
| A mitochondria | releases energy and is called the powerhouse of a cell. |
| Tropism | plant behavior caused by growth toward or away from something in the environment. |
| Some seed plants called, ________ produce flowers. | angiosperms |
| after fertilization, the female cone closes up and ____ grow in it. | seeds |
| Compare and contrast spores and seeds. | Spores contain a single cell that grows into a new plant, and seeds contain a multicellular embryo that develops into a new plant. |
| How does the environment influence the time at which a seed germinates? How does this help the seed to survive? | Seeds need a certain temperature, water, and oxygen. If the environment is not right the seeds will not germinate and the embryo will stay inside the seed. |
| Plant behaviors can result from chemicals the plants make.Give 3examples of tropism. | 1.Gravitropism is a plants response to gravity to which roots grow down and stems grow up.2. Photo tropism is a response to light in which stems bend toward the light and roots bend away from the light.3.Thigh tropism is a response to touch. |
Created by:
cdee
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