LESSON 5: BIOGEOCHEMICAL CYCLES Flashcards
Involve biological, geologic, and chemical interactions that represent the cyclic movement of matter from one part of an ecosystem to another
Biogeochemical Cycles
responsible for metabolic processes in cells, flow of key nutrients, and distribution of heat and energy, and it is important for life to exist
water
Water is responsible for metabolic processes in cells, flow of key nutrients, and distribution of heat and energy
Hydrologic Cycle
is a structural component of organic molecules
Carbon
released through respiration or by natural and anthropological activities
carbon
Carbon is a structural component of organic molecules. Chemical bonds in carbon compounds provide metabolic energy
Carbon Cycle
released thru human activities and may result to global warming
carbon deposits
Abundance of nutrients in waters may cause ____________
algal bloom
Nitrogen is an extremely important nutrient for living organisms. Atmospheric nitrogen must be fixed by nitrogen-fixing bacteria for plant absorption. Humans have altered this by using synthetic fertilizers
Nitrogen Cycle
an extremely important nutrient for living organisms
Nitrogen
Natural release of phosphorus is very slow
Phosphorus Cycle
it greatly speeded the use and movement of phosphorus
Mining of fertilizers
Essential component of proteins. Human activities release large quantities of sulfur, primarily through burning fossil fuels
Sulfur Cycle
it can cause human health problems, damage buildings and vegetation, reduce visibility, and contribute to greenhouse effect
Sulfur dioxide and sulfate aerosols
they are important determinants of the acidity of rainfall, surface water, and soil
Sulfur compounds
