Nitrogen Cycle. Learning Intention: I can explain the stages of the nitrogen cycle Success Criteria; I can say why nitrogen is important I can take part.

Slides:

Advertisements

Similar presentations

Nycole C. & Deja M.. Nitrogen is the most abundant element in the atmosphere. Organisms need nitrogen in relatively high amounts. Because of this, nitrogen.

Advertisements

What is Nitrogen?  Nitrogen makes up about 78% of our atmosphere.  Nitrogen in the atmosphere it is mostly in the form of ______, which is a compound.

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?

What are the components of the Nitrogen cycle? WILF Recall why nitrogen is needed by living organisms Describe the organisms, compounds and processes involved.

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.

Food Production and the Environment The Carbon Cycle.

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

Quiz on the Nitrogen cycle

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.

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

What do these have in common?. The Nitrogen Cycle Game V Symes.

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

Plants and nitrogen Plants need nitrogen to grow. It’s present in DNA, RNA, the amino acids that make up proteins, ATP, chlorophyll and most vitamins.

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.

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.

National 5 Biology Course Notes Unit 3 : Life on Earth Part 2 : Energy in Ecosystems.

BIOGEOCHEMICAL CYCLES. The flow of energy in the biosphere is in one direction only: from the sun, through living organisms, into the environment, and.

Starter Questions 1.What is nitrogen used for in the body? 2.How is it related to growth and repair and why? 3.Around 78% of the Earth’s atmosphere is.

Nitrogen Cycle Importance of Nitrogen Take a deep breath. Most of what you just inhaled is nitrogen. In fact, 80% of the air in our atmosphere is made.

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

BIOGEOCHEMICAL CYCLES. The flow of energy in the biosphere is in one direction only: from the sun, through living organisms, into the environment, and.

What is Nitrogen?  Nitrogen makes up about 78% of our atmosphere.  Nitrogen in the atmosphere it is mostly in the form of ______, which is a compound.

Stop! What is a cycle? Discuss A series of events that repeat, with no beginning or end. Stop! Why is Nitrogen important to us? Nitrogen makes up the proteins.

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

Nitrogen in the air animal protein dead plants & animals urine & faeces ammonia nitrites nitrates plant made protein decomposition by bacteria & fungi.

Learning objectives Success criteria Decomposition and the nitrogen cycle Describe the role of decomposers in the decomposition of organic material Describe.

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 Biology 20. Nitrogen Cycle Nitrogen cycle: cycling of nitrogen between organisms and environment. Nitrogen fixation: process of converting.

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.

B3 L IFE ON E ARTH Lesson 4: Recycling Nutrients.

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.

Cycles of the Earth & Biogeochemical Cycles Nitrogen Cycle

Nitrogen Cycle Teacher Copy.

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

The Nitrogen Cycle Chapter 16.3.

Cycles of the Earth & Biogeochemical Cycles Nitrogen Cycle

What do these have in common?

B4h Recycling CO2 Carbon is one element that is recycled naturally

Food Production and the Environment

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

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

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.

The Nitrogen Cycle.

Food Production and the Environment

Nitrogen Cycle.

Nitrogen Cycle.

nitrogen cycle nitrogen cycle

MOVEMENT BETWEEN PLANTS ANIMALS BACTERIA ATMOSPHERE SOIL

Animals get their protein by eating

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

decomposition by bacteria & fungi

Ecology Day 5 The Nitrogen Cycle.

Presentation transcript:

Nitrogen Cycle

Learning Intention: I can explain the stages of the nitrogen cycle Success Criteria; I can say why nitrogen is important I can take part in an activity to show how nitrogen travels in the earth I can name and describe the stages of the nitrogen cycle.

Nitrogen is present in plants in the form of PROTEIN. The plants may die or they may be eaten by animals. If they are eaten the animal GAINS the protein. This is one part of the nitrogen cycle. Nutrition Death Death and excretion

Bacteria and Fungi act as DECOMPOSERS and break down the dead organisms (plants and animals). This produces AMMONIA which is a compound that contains nitrogen. Plants cannot absorb ammonia, but NITRIFYING bacteria can change this into NITRITE. Other NITRIFYING bacteria change the nitrite into NITRATE which plants can then absorb. This is a second part of the nitrogen cycle. Ammonia Nitrite Nitrate

Nutrition Death and excretion Death Ammonia Nitrite Nitrate Absorbed by plant roots

A third part of the nitrogen cycle is the gaining of nitrogen from air. Special bacteria called NITROGEN FIXING bacteria live in the soil and take the nitrogen out of the air and change it into soil nitrates. NO 3

Denitrifying bacteria are present which can break down the nitrates. This releases the nitrogen back to into the air. This is a fourth part of the nitrogen cycle. Nitrogen fixing bacteria Denitrifying bacteria

The fifth part of the cycle involves a special group of bacteria called NITROGEN FIXING bacteria. These live in the root nodules of legumes (clover, beans, peas) and remove nitrogen from the air. But they give this nitrogen to the plant so it can make protein.

Lightning from the atmosphere can add nitrates to the soil. Loss of nitrogen Nitrogen can be lost from the soil by – the action of the denitrifying bacteria. –Leaching of nitrates into nearby river/water courses. –Harvesting of crops.

Task Collect a passport worksheet. At each reservoir roll the dice and use the key to work out where you will be going next. Fill in this information in your passport and stamp it to prove you have been at that station. Repeat until you passport if full.

Discuss –How many stops did you make? –Will your journey ever end? –Was everyone’s journey the same? Why not? –What would happen if a farmer used too much fertiliser (i.e. everyone started at fertiliser)? –What would happen if farmers increase livestock?

Task In your jotter write a paragraph to describe the path a nitrogen atom could take through the nitrogen cycle. Then complete the card sort.

This cycle only works if the nitrogen is replaced by the decomposing and rotting bodies of animals and plants. This does not happen in farming because the nitrogen in the plants/crops is not available to the soil. It has to be replaced by fertilisers.