There are two types of cell transport mechanisms. These types of transports are passive and active transport. The difference between active and passive is that passive does not require energy and active does require energy. The reason passive does not require energy is because it travels down a concentration gradient. On a concentration gradient molecules naturally move from high to low concentration. In active transport, molecules move from low to high concentration. There are three different types
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2 AQA BIOL5: The synoptic essay AQA A2 Biology: Writing the Synoptic Essay by Dr Robert Mitchell CT Publications Copyright © Dr Robert Mitchell 2010 www.ctpublications.co.uk 0800 040 7901 Dr Robert Mitchell A catalogue record for this book is available from the British Library ISBN 978-1-907769-02-3 First published in May 2010 by CT Publications Copyright © Dr Robert Mitchell 2010 The right of Robert Mitchell to be identified as the author of this work has been
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Enzymology and Catalytic Mechanisms GRT3 Enzymes are proteins that speed up chemical reactions. They are catalyst. Without catalyst, chemical reactions would still take place, but at a slower rate and the body wouldn’t benefit. All enzymes possess two essential properties. First, enzymes accelerate the rate of chemical reactions without being consumed and/or changed by the reaction. Second, enzymes accelerate reaction rates without changing the chemical equilibrium among reactants and products
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Richard Ching Biology 141 Exam 1 Study Questions 1-15 1. What is the difference between an hypothesis and a scientific Theory? Between an hypothesis and a prediction? What kinds of hypotheses are useful for scientific investigations that try to explain the natural world, and which are not? Give one or more examples of hypotheses that are and are not scientifically useful. A scientific theory is an explanation for a broad class of phenomena or observations, whereas a hypothesis is a testable
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can be developed successfully whilst the rest of the body can be grasped. In particular, I have decided to research Protein macromolecules. Proteins are unique in the way of their structures and found contributing to virtually all cells of the body. The following essay explains the distinctive structures of Protein, variant forms and proteins role toward almost all biological processes. Body: Structure of Protein The structure of a Protein Macromolecule consists of more than one hundred amino
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initial stage of cellular respiration is glycolysis (Daempfle, 2016). A pear has protein and vitamins but a high percentage of sugars. At this stage, the glucose in the sugars in the pea is broken down. This process takes place in the cytoplasm of the cell. The glucose molecule of the pear is broken down gradually into two molecules of the pyruvate.
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CARIBBEAN EXAMINATIONS COUNCIL Caribbean Advanced Proficiency Examination CAPE ® BIOLOGY SYLLABUS Effective for examinations from May/June 2008 CXC A10/U2/07 Published by the Caribbean Examinations Council All rights reserved. No part of this publication may be reproduced, stored in a retrieval system, or transmitted in any form, or by any means electronic, photocopying, recording or otherwise without prior permission of the author or publisher. Correspondence related to the
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Biology 141, Fall 2012 Exam 1 Study Questions (rev. 083112) The questions on the first hour exam will be based on those given below. Questions on the exam will be in multiple choice form, but if you can answer the questions here, you will have no trouble with the exam. [Notes: 1. These questions are meant to provoke thought and study. Do not ask the instructors or the TAs to provide you with the answers. 2. Crossed out study questions will not be use as the basis for exam questions.] 1
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# 03060584 1. Instructional Context: The Biology class used in this component is a class of 29 students in grades 9-11, ranging in age from 14-16. This class is required for graduation coving topics from cells, DNA, genetics, photosynthesis, evolution, and ecology. In this section there were 16 girls and 13 boys. There are 17 freshmen, 11 sophomores and one junior. Twenty four students are Caucasian, four students are African American, and one students is Hispanic. Two students spoke a second
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June 2011 essay - A cycle is a biological pathway or process in which the end product of one cycle becomes the starting point for the next cycle. Write an essay about cycles in biology. Plan: Nutrient cycle – carbon and nitrogen Respiration – krebs cycle Photosynthesis – calvin cycle Heart – cardiac cycle Lungs Action potential Menstrual cycle – feedback mechanisms Cell division Nutrients are essential for organisms to survive, they are recycled so that they can be used over and
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