Cycling of Organic and Inorganic Matter

Transcription

1 Cycling of Matter Build your Own Notes: Use these topics as guidelines to create your own notes from the page given udy Notes/Questions Cycling of Organic and Inorganic Matter Organic matter always contains Some examples of organic compounds are... Inorganic matter is not from Some examples of inorganic compounds are... Photosynthesis is the process. Cellular respiration is the process that..

2 The Carbon Cycle Warmup: Study Notes/Questions The Carbon Cycle is the key element in all living things 1) source of energy 2) structural parts of bodies 3) insulation, long- term energy storage Sources of Carbon store carbon and release it slowly reservoirs that absorb more carbon than they release (forests, oceans) The Carbon Cycle describes process where carbon is recycled through ecosystems mostly through photosynthesis removes and creates oxygen cellular respiration removes and creates carbon dioxide keeps balance of oxygen and carbon dioxide in

3 The Carbon Cycle Study Notes/Questions Photosynthesis: Carbohydrates formed are passed through releases carbon into the soil Carbon can be stored as Cellular Respiration: is released back into the atmosphere Carbon is also released from through photosynthesis and cellular respiration Summary: (two to three sentences summarizing this section) Self- Reflection Questions: 1. Describe one thing that you knew about this topic before today. 2. Describe one thing you learned about this topic today.

4 The Nitrogen Cycle Warm up: Study Notes/Questions The Nitrogen Cycle All living things need nitrogen to form (for DNA) and (for proteins) Nitrogen gas makes up, but most organisms can t break the in nitrogen molecules, so the Nitrogen Cycle is needed First Step - A process carried out by certain found in on the roots of legumes such as peas, peanuts, soybeans and others Also in (in water) and in Plants and bacteria have (both benefit) is fixed (combined with hydrogen) to give Excess ammonia is dissolved in water as Second Step - A process where are produced from ammonium, by in the soils Plants need both and to grow

5 The Nitrogen Cycle Study Notes/Questions Plants use nitrates to make (building blocks of protein) and Animals get amino acids by and nucleic acids, remake their own Third Step - When organisms produce waste or die and decompose, the materials are broken down to release convert ammonium and nitrates back to nitrogen gas (anerobic = without oxygen) This process speeds up in, acidic enviroments such as peat bogs Summary: (two to three sentences summarizing this section) Self- Reflection Questions: 1. Describe one thing you learned about this topic today. 2. Describe one thing about this topic you want to learn in more detail.

6 The Phosphorous Cycle Warmup: udy Notes/Questions The Phosphorus Cycle Phosphates are important molecules in living things have sugar phosphate backbones Animals have phosphates in Cell membranes are made of (fat molecules with phosphate attached) Energy in all organisms stored in Sources of Phosphate All phosphate originates from weathering of rocks. Phosphate ions dissolve in, get absorbed by, then eaten by consumers The Short and Long Phosphorous Cycle Short Cycle When organisms die and decompose the and dissolve in water and are available

7 The Phosphorous Cycle udy Notes/Questions Long Cycle When organisms die and decompose in the ocean, the phosphates and other elements These sediments eventually become remain trapped until a geological event exposes them to. - symbiotic fungus on roots of most plants - increases solubility of phosphate Human activities add phosphate to ecosystems in several ways Summary: (two to three sentences summarizing this section) Self- Reflection Questions: 1. Describe one thing you learned about this topic today 2. Describe one thing about this topic you want to learn in more detail.