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26 Cards in this Set
- Front
- Back
scientists have been exploring the use of protists to produce |
biodiesel |
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Biodiesel is a? |
fuel |
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Biodiesel is made mostly of? |
living organisms |
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a type of scientific investigation that tests how one variable affects another variable is? |
controlled experiement |
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Who invented the diesel engine? |
Rudolph Diesel |
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Food crops can be replaced with what kind of crops? |
oil rich crops |
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Why is using fuel crops not a good idea? |
because there is a shortage of food in many parts of the world |
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the Aquatic Species Program initially studied ways that micro algae could capture excess ______________ in the air |
CO2 |
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ASP project leaders noticed that some micro algae strains produced amounts of what |
oil |
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Micorscopic organisms that live in marine or freshwater environments are called ? |
microalgae |
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During _______________ micro algae produce __________ that can be converted into biodiesel |
photosynthesis, oil |
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starving mucilage of nutrients, such as nitrogen, increases the amount of |
oil |
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starving the micro algae also caused their size to do what |
become smaller |
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Growing micro algae in open ______________ can be challenging and expensive |
ponds |
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some researchers are now growing algae under controlled conditions in closed glass containers called ? |
bioreactors |
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Dr. Richard Sayre said that all ASP research was based on forming ? |
hypothesis |
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accourding to Dr. Sayre to get research support, a scientist has to develop and propose _____? |
deelop a question, and propose a strategy |
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micro algae use what to make sugar |
light energy, water, and carbon dioxide |
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scientist from biofuel company wondered whether micro algae oil yields ______________ by distributing light to all micoalgae |
increased |
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researchers used __________ to feed artificial light to micro algae in a ____________ |
light rods, bioreactor |
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what continuously rotate micro algae to the surface so the organisms are exposed to more lights |
paddle wheels |
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power plants that burn ___________ release carbon dioxide in the _____________ |
fossil fuel, atmosphere |
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when fossil fuel is released in the atmosphere, it contributes to |
global warming |
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micro algae use carbon dioxide during ________ |
photosynthesis |
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the cost of growing micro algae are currently too high to compete with _____________ |
petroleum based diesel |
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____________ based biodiesel might one day become affordable reality in the US |
microalgae |