12d Carbon & Nitrogen Cycle Flashcards
Quiz by Kabreena Attaway
High School
Biology(2017)(ARCHIVED)
Texas Essential Knowledge and Skills (TEKS)
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16 questions
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- Q1How do plants fit into the carbon cycle?They absorb carbon dioxide then convert it into sugars and other organic molecules30sBIOL.12d
- Q2How do animals fit into the carbon cycle?They eat sugars and organic molecules, then breath out carbon dioxide30sBIOL.12d
- Q3What gas do plants produce that animals need to survive?They produce oxygen which animals need30sBIOL.12d
- Q4How would cutting down trees affect the carbon cycle?Fewer trees would cause carbon dioxide to build up in the atmosphere30sBIOL.12d
- Q5How could pollution in the ocean affect the carbon cycle?Most photosynthesis happens in the ocean through photosynthetic algae. Killing these algae could reduce the oxygen available to animals30sBIOL.12d
- Q6How could adding CO2 to the atmosphere affect the carbon cycle?This could increase the amount of plants and algae which absorb carbon dioxide30sBIOL.12d
- Q7What organisms prevent carbon from being trapped inside of dead things?Decomposers recycle the carbon found in dead organisms30sBIOL.12d
- Q8What process causes nitrogen gas (N2) to be converted into ammonia (NH3) in the air?Lightening causes nitrogen to react with hydrogen in the air turning it into ammonia30sBIOL.12d
- Q9What lives in the soil and plant roots and convert nitrogen gas into ammonia?Nitrogen-fixing bacteria convert N2 into NH330sBIOL.12d
- Q10What do we call bacteria that convert ammonia into nitrates/nitrites?Nitrifying bacteria convert NH3 into NO2-/NO3-30sBIOL.12d
- Q11What type of plants has nitrogen-fixing bacteria in their roots?Legumes have root nodules containing nitrogen-fixing bacteria(Clover, beans, peas, alfalfa, soy and peanuts are all types of legumes)30sBIOL.12d
- Q12What organisms prevent nitrogen from being trapped inside of dead things?Decomposers recycle the nitrogen found in dead organisms and convert it into ammonia30sBIOL.12d
- Q13How does growing crops in a field affect the nitrogen levels of the soil?They deplete the nitrogen in the soil and can cause future plants to not grow as well30sBIOL.12d
- Q14How can farmers replenish the nitrogen in the soil?They can rotate crops so that legumes grow in each field every few years(Clover, beans, peas, alfalfa, soy and peanuts are all types of legumes)30sBIOL.12d
- Q15What can happen if excess fertilizers leak into rivers, lakes and streams?Too much algae can grow in the water which takes the oxygen away from fish30sBIOL.12d