3Matter Is any material that has mass and occupies space. Is never used up and never goes away.It cycles round and round.The Law of Conservation of Matter is a principle that states that matter may be transformed from one type of matter to another, but it can’t be created or destroyed.
4Nutrients cycle through the environment endlessly Nutrient cycling
5Nutrient CyclingQuestion: What do you know about nutrition and nutrients?
6Nutrient CyclingNutrients are matter that organisms require for their life processes.Two typesMacronutrients which are required in large amounts and include nitrogen, carbon, and phosphorus.Micronutrients which are required in small amounts.
7Nutrient CyclingEndlessly circulate through the environment in biogeochemical cycles.Carbon, oxygen, phosphorus, nitrogen are nutrients that cycle through all of Earth’s spheres and organisms.
8The nitrogen cycle relies on bacteria that make nitrogen useful to organisms and bacteria that can return it to the atmosphere.Nitrogen cycle
9Nitrogen Cycle Nitrogen Makes up 78% of the atmosphere and is the sixth most abundant element.Is an essentialIngredient of DNA & RNA (proteins) that build organisms.Nutrient for plant growthThis means that the nitrogen cycle is vital to all organisms.
10Nitrogen CycleNitrogen gas cannot cycle out of the atmosphere and into organisms.The nitrogen cycle chemically changes nitrogen gas to make nitrogen available to organisms that need it.
11Nitrogen Cycle Nitrogen fixation converts nitrogen gas into ammonia This accomplished byIntense energy of lightning.Nitrogen-fixing bacteriaLive in soil or associated with soybean, clover, and legumes.Use the process of nitrification to produce nitrate ions (NO3-) that plants can use.
12Nitrogen CycleDenitrification bacteria complete the nitrogen cycle by converting nitrates in soil or water back to nitrogen gas.