How does Matter move through an ecosystem 1

Why are nutrients important ? § Every living organism needs nutrients to build tissues

Availibility of nutrients § If a nutrient is in short supply, it will limit

CARBON CYCLE (see fig. 3 -13) 4 PROCESSES MOVE CARBON THROUGH ITS CYCLE: CO

NITROGEN CYCLE (see fig. 314) N 2 in Atmosphere Nitrogen-containing nutrients in the biosphere

PHOSPHORUS CYCLE (see fig. 3 -15) PHOSPHORUS FORMS PART OF IMPORTANT LIFE-SUSTAINING MOLECULES (ex.

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How does Matter move through an ecosystem? 1. WATER CYCLE § Unlike the one way flow of energy, matter is recycled 2. NUTRIENT CYCLES: within & between a) CARBON ecosystems § Nutrients are passed between organisms & the environment through biogeochemical cycles § Biogeochemical Cycles: § Bio –life § Geo – Earth § Chemo – chemical CYCLE b) NITROGEN CYCLE c) PHOSPHORUS CYCLE

Why are nutrients important ? § Every living organism needs nutrients to build tissues and carry out essential life functions. 95% of your body is made of… 1) OXYGEN 2) CARBON 3) HYDROGEN 4) NITROGEN

Availibility of nutrients § If a nutrient is in short supply, it will limit an organisms growth. It is called a limiting nutrient § When a limiting nutrient is dumped into a lake or pond, an algal bloom occurs and can disrupt the ecosystem

THE WATER CYCLE

CARBON CYCLE (see fig. 3 -13) 4 PROCESSES MOVE CARBON THROUGH ITS CYCLE: CO 2 1) Biological 2) Geochemical 3) Mixed biochemical 4) Human Activity CO 2

NITROGEN CYCLE (see fig. 314) N 2 in Atmosphere Nitrogen-containing nutrients in the biosphere include: 1) Ammonia (NH 3) 2) Nitrate (NO 3 -) 3) Nitrite (NO 2 -) ORGANISMS NEED NITROGEN TO MAKE AMINO ACIDS FOR BUILDING PROTEINS!!! N 03 NH 3 & N 02 -

PHOSPHORUS CYCLE (see fig. 3 -15) PHOSPHORUS FORMS PART OF IMPORTANT LIFE-SUSTAINING MOLECULES (ex. DNA & RNA)