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5th SW 3 week test
5th six weeks 3 week test
| Question | Answer |
|---|---|
| What are the reactants of photosynthesis? | water and carbon dioxide |
| What are the products of photosynthesis? | glucose and oxygen |
| What is the gas produced by plants? | oxygen |
| Where is light energy converted to chemical energy? | in the leaf |
| What happens to light energy when it is absorbed into the leaf? | a chemical reaction takes place |
| What is chlorophyll? | the pigment in a plant cells that helps the plant make its own food (glucose) |
| The energy from the sun enters the plant as ___ energy and is converted into ___ energy. | light; chemical |
| What is the word equation for photosynthesis? | carbon dioxide, water and light energy react to form glucose and oxygen |
| What is the equation for photosynthesis? | H2O + CO2 + light energy --> C6H12O6 + 6O2 |
| Where is the chemical energy stored in plants? | chloroplasts |
| What do all plants have in common? | they are all producers |
| What is turgor pressure? | the outward pressure in the vacuole of a plant cell. |
| What happens to a plant's cells when it is wilting? | the vacuole has lost water. |
| What internal structure in a plant transports water from the roots to the leaves? | xylem |
| What internal structure in a plant transports nutrients from the leaf to the rest of the plant? | phloem |
| Why do some plants have thorns? | to protect against being eaten |
| Why do some plants have colorful flowers? | to attract pollinators |
| Why do some plants have bulbs? | to store energy for later use |
| Why do some plants have very lightweight parts that will fly away in the wind? | so they are able to use the wind to carry the seeds to be planted in a different location |
| What is geotropism? | response to gravity (roots grow down, stems grow up) |
| What is thigmotropism? | response to touch (vines attaching to limbs, fences, etc.) |
| What is phototropism? | response to light |
| What is hydrotropism? | response to moisture or water |
| Why do some plants have leaves in the form of spines? | to reduce the amount of water that is lost |
| What will increase turgor pressure? | providing a plant with water |
| A plant that grows toward the sunlight is responding to what? | an External stimulus. The sun |
Created by:
SLJHscience
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