PPT-The Nitrogen Cycle Revision

Learning Objectives To understand that the Nitrogen Cycle is composed of the following processes To be able to use this information to answer exam questions where applied knowledge is required. C483 Spring 2013. 1. Which . of the following is/are true statement(s) about . glutamine and alanine? . A) . They are . nitrogen . donors . in many biosynthetic reactions. . B) . They are part of the urea cycle. . Important nutrients, and energy is cycled in ecosystems.. Water cycle. Carbon cycle. Nitrogen . cycle. Phosphorus . What four elements make up over 95% of most organisms?. Oxygen. Carbon. Hydrogen. Nitrogen. Water cycle. Carbon/Oxygen Cycle. Nitrogen Cycle. W.C. is a continuous process in which water moves from Earth’s surface into the atmosphere and back.. There are 3 main parts. Evaporation: . the process by which liquid water becomes a gas. Denition :Anr-cycleisdenotedby(i1i2:::ir):Example :11=(1)1cycle1212=(1)1cycle1221=(12)2cycle123321=(13)2cycle123231=(123)3cycle12344312=(1423)4cycle1234535421=(13425)5cycle12345 Please Do Now: What kind of Nitrogen is the typical end product of the process of decomposition?. Agenda. Do Now. Humans and the Nitrogen Cycle. Sick Fish video. Quiz time YAY!. Remember. Most of the Nitrogen on earth is in the atmosphere, as N2 gas (78% of the air we breathe) . Living organisms also contain S and P as well as several other elements. These elements compose the macromolecules carbohydrates, lipids, proteins, and nucleic acids. The macromolecules and the elements that compose them are constantly recycled as they are passed from one organism to the next in a food chain beginning with the autotrophs and ending with decomposers. Chapter 30, . Stryer. Short Course. Overview. Amino Acid Catabolism. Nitrogen removal. Urea Cycle. Metabolism of carbon backbone. Amino acid catabolism. Amino acids . from diet or protein turnover. Salvaged for use in proteins or catabolized. RAMI ITANI. What Matter Is Being Cycled. The matter that is being cycled is Nitrogen. Nitrogen is one of the main building blocks of life. Every living things need nitrogen to either breath or to grow. Nitrogen can be found almost everywhere.For example it can be found in the air,in soil, in water and even in volcanic gasses. Nitrogen is one of the most important elements on earth. “The little bit I use or pollute will not matter”. . So with few users it is not a big problem, however; will an ever increasing human population, resources can be exhausted. . Sustainability. Learning Objectives. To understand that the . Nitrogen Cycle . is composed of the following processes:. To be able to use this information to answer exam questions where applied knowledge is required.. 5.1 Energy Flow in Ecosystems. 5.2 The Cycling of Matter. 5.3 How Ecosystems Change. Objectives. Describe. . how energy is transferred from the sun to producers and then to consumers.. Describe. . one way in which consumers depend on producers.. Think!. What is a cycle? What are some cycles you know about in the world we live in?. What is a cycle?. A single complete execution or a periodically repeated phenomenon.. What does that mean?. Single – it happens one time. NITROGEN CYCLE Where is nitrogen found in the environment The largest single source of nitrogen is in the atmosphere . Nitrogen makes up 78% of our air! What happens to atmospheric nitrogen(N 2 Take a deep breath! . 78% of the air you just breathed . in is . made up of nitrogen gas. . Your body . requires nitrogen . to. build . proteins, . amino . acids, . and. DNA. , but your body . cannot .