1. End Show Slide 1 of 33 Copyright Pearson Prentice Hall 3–3 Cycles of Matter

2. End Show 3–3 Cycles of Matter Slide 2 of 33 Copyright Pearson Prentice Hall 3-3 Cycles of Matter How does matter move among the living and nonliving parts of an ecosystem?

3. End Show 3–3 Cycles of Matter Slide 3 of 33 Sun Power Copyright Pearson Prentice Hall

4. End Show 3–3 Cycles of Matter Slide 4 of 33 Copyright Pearson Prentice Hall Recycling in the Biosphere Energy and matter move through the biosphere very differently. Unlike the one-way flow of energy, matter is recycled within and between ecosystems. Biogeochemical Cycles

5. End Show 3–3 Cycles of Matter Slide 5 of 33 Copyright Pearson Prentice Hall The Water Cycle All living things require water to survive. The Water Cycle

6. End Show 3–3 Cycles of Matter Slide 6 of 33 Copyright Pearson Prentice Hall The Water Cycle Water moves between the ocean, atmosphere, and land.

7. End Show 3–3 Cycles of Matter Slide 7 of 33 Copyright Pearson Prentice Hall Nutrient Cycles All the chemical substances that an organism needs to sustain life are its nutrients. Every living organism needs nutrients to build tissues and carry out essential life functions.

8. End Show 3–3 Cycles of Matter Slide 8 of 33 Copyright Pearson Prentice Hall Nutrient Cycles The Carbon Cycle Carbon is a key ingredient of living tissue. Biological processes, such as photosynthesis, respiration, and decomposition, take up and release carbon and oxygen.

9. End Show 3–3 Cycles of Matter Slide 9 of 33 Copyright Pearson Prentice Hall Nutrient Cycles CO 2 in Atmosphere Photosynthesis feeding Respiration Deposition Carbonate Rocks Deposition Decomposition Fossil fuel Volcanic activity Uplift Erosion Respiration Human activity CO 2 in Ocean Photosynthesis

10. End Show 3–3 Cycles of Matter Slide 10 of 33 Copyright Pearson Prentice Hall Nutrient Cycles The Nitrogen Cycle All organisms require nitrogen to make proteins. Only certain types of bacteria can use nitrogen directly. Such bacteria live in the soil and on the roots of plants called legumes. -Nitrogen fixation

11. End Show 3–3 Cycles of Matter Slide 11 of 33 Copyright Pearson Prentice Hall Nutrient Cycles Bacterial nitrogen fixation N 2 in Atmosphere NH 3 Synthetic fertilizer manufacturer Uptake by producers Reuse by consumers Decomposition excretion Atmospheric nitrogen fixation Uptake by producers Reuse by consumers Decomposition Decomposition excretion NO 3 and NO 2

12. End Show 3–3 Cycles of Matter Slide 12 of 33 Nitrogen Cycle Copyright Pearson Prentice Hall

13. End Show 3–3 Cycles of Matter Slide 13 of 33 Bacterial nodules Copyright Pearson Prentice Hall

14. End Show 3–3 Cycles of Matter Slide 14 of 33 Copyright Pearson Prentice Hall Nutrient Cycles The Phosphorus Cycle Phosphorus is essential to organisms because it helps form important molecules like DNA and RNA.

15. End Show 3–3 Cycles of Matter Slide 15 of 33 Copyright Pearson Prentice Hall Organic phosphate moves through the food web and to the rest of the ecosystem. Nutrient Cycles Ocean Land Organisms Sediments

16. End Show 3–3 Cycles of Matter Slide 16 of 33 Copyright Pearson Prentice Hall Nutrient Limitation The primary productivity of an ecosystem is the rate at which organic matter is created by producers. - Nutrients limit primary productivity Limiting Nutrient – a nutrient that is in short supply in an ecosystem.

17. End Show 3–3 Cycles of Matter Slide 17 of 33 Copyright Pearson Prentice Hall Algal bloom: When a limiting nutrient is suddenly increased in an aquatic ecosystem, algae can rapidly grow and disrupt the equilibrium. Nutrient Limitation

18. End Show - or - Continue to: Click to Launch: Slide 18 of 33 Copyright Pearson Prentice Hall 3–3

19. End Show Slide 19 of 33 Copyright Pearson Prentice Hall 3–3 Transpiration is part of the a.water cycle. b.carbon cycle. c.nitrogen cycle. d.phosphorus cycle.

20. End Show Slide 20 of 33 Copyright Pearson Prentice Hall 3–3 Carbon is found in the atmosphere in the form of a.carbohydrates. b.carbon dioxide. c.calcium carbonate. d.ammonia.

21. End Show Slide 21 of 33 Copyright Pearson Prentice Hall 3–3 Biologists describe nutrients as moving through cycles because the substances a.start as simple organic forms that plants need. b.provide “building blocks” and energy that organisms need. c.are passed between organisms and the environment and then back to organisms. d.are needed by organisms to carry out life processes.

22. End Show Slide 22 of 33 Copyright Pearson Prentice Hall 3–3 The only organisms that can convert nitrogen in the atmosphere into a form useful to living things are nitrogen-fixing a.plants. b.bacteria. c.detritivores. d.animals.

23. End Show Slide 23 of 33 Copyright Pearson Prentice Hall 3–3 When an aquatic ecosystem receives a large input of a limiting nutrient, the result is a.runoff. b.algal death. c.algal bloom. d.less primary productivity.

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