few tablespoons can kill a human (Krieger 2010). Thus‚ ricin can be considered detrimental to life. With ricin and ribosome being polar opposite‚ scientists try to apply the ricin’s capabilities in a positive direction. Ricin’s ability to disrupt amino acids chains can be used in medical treatments. In theory‚ ricin can be used to help stop protein synthesis in cancer cells. Cancer cells typically express telomerase‚ enabling them to continue dividing when normal human cells would stop (Alberts‚
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Stephen White Biology Lab 11.1 Observations of the spicules of a sponge Supplies Microscope Prepared slide: Sponge Lab notebook Colored pencils Natural Sponges Hypothesis We will learn more in depth about sponges and the complexity of this animal Procedure Set up microscop as instructed in previous expiraments. Place the prepared slide under the microscope. Obeserve under low power and draw what you see in your notebook. This slide shows you the spicules‚ wich make
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Last Monday‚ (August 15‚ 2011) we had our Environmental Biology Field trip at three different places all around Manila‚ We visited The Avilon Zoo‚ The La Mesa Eco Park and The Myth of the Human body. We are scheduled to depart at around 6:00 in the morning because that is what’s written in our itinerary‚ but just like what we all expected‚ the bus started the engine at around 7:30 in the morning already‚ we were kind of left behind with our scheduled trip and we’re a little bit upset about it because
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Biology 101 FINAL EXAMINATION Spring‚ 2013 Name: Gabriel Euzebio Date: May 10‚ 2013 GENERAL INSTRUCTIONS: This final exam is worth 100 points. There are three sections. The Multiple Choice section has 50 questions worth 1 point each‚ for a total of 50 points. The Fill-In The Blanks section has 10 questions worth 1 point each‚ for a total of 10 points. For the Short Answer section‚ you must choose to answer 8 of the 12 questions‚ and each question is worth 5 points‚ for a total
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ANSWERS Cambridge IGCSE® Biology Practice Book Answers 1 Characteristics of living things 1 Characteristic respiration an increase in size‚ mass and complexity of an organism excretion producing offspring‚ which prevents extinction of the species sensitivity this involves feeding – obtaining nutrients for growth‚ energy and maintaining health reproduction in response to changes‚ e.g. presence of a predator‚ to find food or a mate growth the ability
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Introduction: Biology is the study of life‚ what life needs to survive‚ what makes life possible‚ how life evolves and changes‚ and how life-forms interact with one another. Characteristics of Life Living things include both the visible world of animals and plants‚ as well as the invisible world of bacteria. On a basic level‚ we can say that life is ordered. Organisms have an enormously complex organization. We’re all familiar with the intricate systems of the basic unit of life‚ the cell
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enzyme-catalyzed reaction is called a substrate. The area of the enzyme that binds to the substrate is called the active site - where the action takes place. * Cofactors and coenzymes are small molecules or ions that help enzymes to act. HSC Biology Notes – Hugh Phillips Maintaining a Balance 1.Most organisms are active in a limited temperature range: Identify the role of enzymes in metabolism‚ describe their chemical composition and use a simple model to describe their specificity on substrates:
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Preliminary Biology Assessment task 2013 A Local Ecosystem Mangrove Swamp Cassandra Mandelik Introduction: A mangrove is a tree‚ shrub‚ palm or ground fern‚ generally exceeding the height of one and a half metres. They normally grow above mean (average) sea level in intertidal zones of marine coastal environments as well as estuarine margins. A mangrove also refers to the tidal habitat comprising of such trees and shrubs. Australian mangrove systems are highly effecting by human presence and
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between an eukaryotic and prokaryotic cell? 7. What branch of biology creates models to make whole biological systems understandable? What do scientists do with these models? 8. In ____________ regulation the output of a process can slow or increase a process. If the process is slowed by the output it is called _________________________ regulation. 9. What branch of biology groups organism according to their characteristics?
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Biology IB Standard Level 2012-2014 Index Topic 1 Topic 2 Topic 3 Topic 4 Topic 5 Topic 6 Topic 7 Topic 8 Topic 9 Topic 10 Topic 11 Statistical analysis Cells The chemistry of life Genetics Ecology and evolution Human health and physiology Nucleic acids and proteins Cell respiration and photosynthesis Plant science Genetics Human health and physiology Topic
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