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5th SW 3 week test

5th six weeks 3 week test

QuestionAnswer
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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