INTROduction TO THE HUMAN BODY 1. Define anatomy and physiology While anatomy provides us with a static image of the body architecture‚ physiology reveals the body’s dynamic and animated workings. Physiology often focuses on events at the cellular or molecular level. A. Anatomy – studies the structure of the body parts and their relationship to one another. i. Developmental – concerns structural changes that in the body occur throughout the lifespan. Embryology studies the developmental changes
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Biology Exam Review Unit One – Biochemistry What is an isotope? Isotope - An isotope is all atoms of the same element that have the same number of protons‚ but they may have different numbers of neutrons in the nucleus. - This means that all atoms with the same atomic number can have different atomic masses. - Because they have the same number of protons and electrons‚ they behave exactly the same in chemical reactions. Radioisotope - The nuclei of some isotopes of an element are unstable
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The Chemistry of Life 3.1 Chemical Elements and Water 3.1.1 State that the most frequently occurring chemical elements in living things are carbon‚ hydrogen‚ oxygen and nitrogen. Carbon‚ hydrogen‚ oxygen and nitrogen are the most frequently occurring chemical elements in living things. 3.1.2 State that a variety of other elements are needed by living organisms‚ including sulphur‚ calcium‚ phosphorus‚ iron and sodium. Other elements are needed by living organisms including sulphur‚ calcium
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bonds between the two monomers. The carbohydrates are the sugar and starches and provide the function of energy to the body of humans. This carbohydrates can come in different sizes and different values overall‚ such as monosaccharaides‚ glucose‚ disaccharides and sucrose. In animals the glycogen is put in short term energy storage such as the liver and muscles. While the plant cell using the carbohydrates in their cell walls to pride the structural to the plants tissues through there cellulose. The
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CHEM 135 Take Home Exam Sp 2014 Type in the blocks and the chart will expand as needed. Good luck. Return by 5 p.m. Saturday‚ April 26‚ 2014. Thank you. Ms. Vallee 1. A. Chiral- An object that cannot lay over on its mirror image (pg291). B. Non-superimposable- A molecule that can be placed on top of its mirror image (http://www.chemeddl.org) C. enantiomer- mirror images of each other (pg292). 16. Trans Fats (http://www.heart.org/HEARTORG/GettingHealthy/FatsAndOils/Fats101/Trans-Fats_UCM_301120_Article
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BIO Chapter 2 Study Guide 1-Know the difference between an atom‚ an element and a compound. -Atom-The basic unit of a chemical element. -Element-A unique molecule that makes up all matter and cannot be broken down any further. -Compound- Two or more elements together 2-Understand and be able to apply the concept of the Atomic number and the Atomic mass of an element. -Atomic Number- The number of protons an element has. -Atomic Mass-The number of Protons + Neutrons. *the number of neutrons
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TUTORIAL 1 BASIC MOLECULES OF CELLS I Student’s Guide: At university level‚ the tutor facilitates student learning without spoon-feeding. Therefore‚ you are expected to: • Read your textbook‚ attempt the questions before the tutorial • You may enter the class and sign your attendance after showing your tutor that all tutorial questions have been completed; even if you don’t know how to do‚ write something - you’re not advised to leave answers blank in the finals. • Write answers
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Cellular Respiration In this lab the effects of different substrates on the rate of cellular respiration is being put to a test which is a very interesting experiment. The three major substrate solutions being used for this experiment are glucose‚ maltose‚ and alanine. The issues this experiment addresses are cellular respiration occur in different stages which are glycolysis‚ citric acid cycle‚ and fermentation. In this lab the experiment determines the effect of different substrates on
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within the folds of the ER membranes. The bacterial cell wall is made of peptidoglycan or murein. This rigid structure of peptidoglycan in prokaryotes gives the cell shape and surrounds the cytoplasmic membrane. Peptidoglycan is a huge polymer of disaccharides. In fungi‚ the cell wall contains a polysaccharide called chitin. Plant cells however don’t chitin as their cell walls are made completely out of polysaccharide cellulose. Cell walls provide support and help cells resist mechanical pressures‚ but
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The lactose is milk sugar‚ a disaccharide consisting of one glucose and one galactose. When lactose reaches the small intestine‚ the lactase enzyme acts on the lactose found in ingested food‚ dividing it into the two molecules that compose it‚ so they can be absorbed‚ digested and transported through the bloodstream. When the person has a lactase deficiency (lactase enzyme has a low concentration or does not occur)‚ the dietary lactose cannot be digested in the small intestine directly passing into
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