 Carbon  Oxygen  Hydrogen  ????  Living things need nitrogen to make amino acids, which make up proteins  Nitrogen is part of nucleotides, which.

Slides:

Advertisements

Similar presentations

TOPIC: Ecology AIM: How are materials cycled through the environment?

Advertisements

Cycles of Matter.

Living thing require nutrient cycles ( nitrogen cycle) because - Some organism ( decomposers) obtain energy from the break down of dead bodies and waste.

What are we going to learn about today?

Sustainable Ecosystems. Nutrient Cycles and Energy Flow All life on earth requires water and food. Water provides the liquid component that makes up cells.

The Nitrogen Cycle  All organisms need nitrogen to make proteins  Nitrogen gas makes up 78% of the atmosphere, but it cannot be used directly by most.

The Nitrogen Cycle Major Processes: Nitrification Nitrification Denitrification Denitrification Decomposition Decomposition Assimilation Assimilation Nitrogen.

The Nitrogen Cycle An essential part of proteins, DNA and other compounds needed for life…

Cycling of Nitrogen in a Closed System

The Nitrogen Cycle: Who Cares? Nitrogen is an essential component of the amino acids that make up proteins and is a basic element of living things.

2-3 Nitrogen Cycle.

 The movement of nitrogen, in its many forms, between the biosphere, atmosphere, and animals, is described by the nitrogen cycle.

The Nitrogen Cycle Living things need nitrogen. It is an important element in proteins, DNA, and other chemical compounds. Nitrogen is found.

Energy in Ecosystems Nitrogen in ecosystems. Energy in Ecosystems Energy in ecosystems Re-cap How much energy is lost between each organism? What is the.

The Nitrogen Cycle Science 10 “Old Outcomes”. The Importance of Nitrogen Nitrogen is a main ingredient in fertilizer. Why does fertilizer produce better.

Matter is not created or destroyed Law of Conservation of Matter.

N2 Nitrogen Cycle What is the NITROGEN CYCLE? The atoms of nitrogen moves from the atmosphere to the soil, through plants and animals, and back into.

NITROGEN CYCLE Explains how NITROGEN moves through an ecosystem.

Carbon & Nitrogen Cycles. Recycling Matter All things living are made of matter Total amount of matter on Earth is limited, so it must be recycled again.

The Nitrogen Cycle.

NITROGEN CYCLE. What does this have to do with me?

The Nitrogen Cycle Section 4.3 BC Science Probe 10 Page 92.

Energy in Ecosystems Nitrogen in ecosystems. Energy in Ecosystems Energy in ecosystems Re-cap How much energy is lost between each organism? What is the.

Bell-ringer: Where on Earth do you find Carbon atoms?

The Nitrogen Cycle An essential part of proteins, DNA and other compounds needed for life…

Water cycle- Cycling maintains homeostasis (balance)

Diagram by Johann Dréo. 1. _______ is the vascular tissue that carries water and nutrients from the roots throughout the entire plant. Xylem Diagram by.

Diagram by Johann Dréo. 1. _______ is the vascular tissue that carries water and nutrients from the roots throughout the entire plant. Xylem Diagram by.

Problems and profit with waste Lesson 2 Micro-organisms and decay.

decomposition by bacteria & fungi

The Nitrogen Cycle By: Reynaldo Thomas.  Nitrogen is an essential element needed for protein formation.  The air around us contain approximately 79%

THE NITROGEN CYCLE.

Nitrogen Cycle Chapter 3 Section 3.4 continued. Nitrogen Cycle 1. Living things require nitrogen to make amino acids, which are used to build proteins.

Identify processes that cycle in the Earth Identify processes that cycle in the Earth Carbon Carbon Nitrogen Nitrogen Water Water The Nitrogen Cycle N.

IGCSE BIOLOGY SECTION 4 LESSON 3. Content Section 4 Ecology and the Environment a)The organism in the environment b)Feeding relationships c)Cycles within.

Nitrogen Cycle Describe the role of decomposers in the decomposition of organic material. Describe how microorganisms recycle nitrogen within ecosystems.

Fig c Decomposers N 2 in atmosphere Nitrification Nitrifying bacteria Nitrifying bacteria Denitrifying bacteria Assimilation NH 3 NH 4 NO 2 NO 3.

 The movement of nitrogen, in its many forms, between the biosphere, atmosphere, and animals, is described by the nitrogen cycle.

What is nitrogen?. What is nitrogen? Nitrogen is in the Nonmetals Group Periodic Table.

The Nitrogen Cycle.

Biogeochemical (Nutrient) Cycles

The Nitrogen Cycle Chapter 16.3.

Chapter 3 Section 3.4 continued

The Nitrogen and phosphorus cycles

Cycles of the Earth & Biogeochemical Cycles Nitrogen Cycle

Take out composition notebook and pick up handouts!

SECTION 13.5 : Biogeochemical Cycles

NITROGEN CYCLE.

Food Production and the Environment

NUTRIENT CYCLES WITHIN ECOSYSTEMS

Nitrogen, Carbon, Phosphorus and Water Cycles

Why is NITROGEN Important?? Proteins and Amino Acids

How Matter and Nutrients Cycle

Notes: The Nitrogen Cycle

The Nitrogen Cycle The nitrogen cycle - nitrogen circulates among the air, soil, water, plants, and animals in an ecosystem. All organisms need nitrogen.

TOPIC: Ecology AIM: How are materials cycled through the environment?

Carbon & Nitrogen Cycles

ECOLOGY Part 2 - Chapter 3.4 Cycles.

Nitrogen Cycle.

The Nitrogen Cycle.

Nitrogen Cycle.

Matter is RECYCLED within or between ecosystems

MOVEMENT BETWEEN PLANTS ANIMALS BACTERIA ATMOSPHERE SOIL

Why is NITROGEN Important?? Proteins and Amino Acids

Cycles of Matter.

What is Nitrogen? Nitrogen makes up about 78% of our atmosphere.

ECOLOGY Chapter 3.4 Cycles.

Presentation transcript:

 Carbon  Oxygen  Hydrogen  ????

 Living things need nitrogen to make amino acids, which make up proteins  Nitrogen is part of nucleotides, which make DNA and RNA

 Air  78% nitrogen  21% oxygen  0.02% carbon dioxide  <1% other gases  Plants and animals cannot absorb nitrogen from the air  What problem does this pose for living things?

 How does nitrogen get into living organisms?  What suggestions do you have? How can you imagine that living things could convert nitrogen into a form that they can use?

 Miracle-Gro is made with ammonium phosphate, urea, potassium chloride, and other ingredients  Total Nitrogen: 15%  Available phosphate: 30%;

 The fertilizer is added to the soil and the plants absorb it  What about plants in the wild? Where does their nitrogen come from?  Waste from other living things

 They cannot absorb it from soil or from the air  They cannot use ammonia or nitrates to make amino acids  Animals get nitrogen from eating plants

 Decomposers break down the dead tissue and add it to the soil  The plants have the nitrogen available to them

 Everyone please take a handout

 Most nitrogen is released as ammonia NH3 (in urine and other waste)  Some is absorbed directly by plants  Some is converted to nitrate (NO3) by bacteria (called nitrifying bacteria)  Plants can use nitrate (NO3)

 Ammonia to nitrite  NH3 to NO2 by nitrifying bacteria  Plants cannot absorb NO2 so another step is needed  NO2 (nitrite) to NO3 (nitrate) by nitrifying bacteria  Plants can absorb and use nitrate (NO3)

 Denitrifying bacteria  They convert NO2 and NO3 back into N2 which is released back into the atmosphere

 A different bacteria, called nitrogen fixing bacteria  These bacteria are found mainly in the roots of legumes (peas, soybeans, clover, alfalfa)

 If there is not enough ammonia in the soil, these bacteria can make ammonia from the N2 in the air

 There are living things that need nitrogen and other living things that are able to convert the nitrogen from the air to a form that is usable by plants.  Also, the remaining nitrogen can be returned to the air

 How does the flow of matter in ecosystems compare with the flow of energy through ecosystems?  Matter (atoms) are recycled and none are lost  Energy is lost in the energy pyramid and must be replenished

 What does it mean to rotate crops?  Why do you think that farmers would alternate crops, especially between legumes and non-legumes?

 Due Thursday: Worksheet as review for the unit 2 test  Due Friday: First draft for the introduction section of the bottle ecosystem lab  It will also serve as a review for the exam  Web site has all the topics that should be included