Chapter 1/2 Bio Study Guide Section 1.1-Scientific Method Science- An organized way of gathering and analyzing evidence about the natural world Scientific Method 1. Collecting observations 2. Asking questions 3. Forming a hypothesis 4. Experiment 5. Analyze results and draw conclusions 6. Revise hypothesis Control Group- a group in the experiment that receives no experimental treatment Independent Variable- Variable that you change in the experiment X-axis Dependent
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area on volume ratio on the rate of diffusion of pigment from the agar cube measured by percentage volume of diffusion over time? Background Research: Diffusion is the passive movement of molecules or particles along a concentration gradient‚ or from high to low concentration regions. Essential towards living organism’s functions‚ as it describes how the nerve cells are able to communicate with each other‚ through electrical signals in other cells. Diffusion can also be used to describe the cells
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zaidi@maher2010 Chapter 1: Respiration Respiration Human Breathing Mechanism Transport of oxygen Importance of a healthy respiratory system Respiratory system Diffusion of oxygen by blood Harmful substances lungs Transport of oxygen by blood Effects of pollutants inhalation Diffusion of oxygen into cell Respiratory diseases. Good habit to improve air quality. exhalation Human Respiratory system PMR 03‚ 08 1. The human respiratory system consists
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network of capillaries surrounding the alveoli. Blood arriving in the alveoli is deoxygenated‚ produced during respiration‚ however‚ the blood already contained in the alveoli is oxygenated. Therefore‚ the oxygen enters the deoxygenated blood by diffusion. As the oxygen diffuses through the cell membrane and into the blood‚ each oxygen molecule merges with a haemoglobin molecule -red protein found in red blood cells that helps transport oxygen- to form
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Chapter 3 Cloze Notes CORNELL NOTES UNIT 2: Cells Directions: Create a Chapter 3: Cell Structure and Function minimum of 5 questions in this column per page I. Cell Theory (Section 3.1) (average). You can use these questions during class A. Early studies led to the development of the cell theory or tutorial to better understand a topic; or at home to better understand 1. Discovery of Cells your notes and prepare for tests and quizzes. a. Robert __________ (1665)—Used compound microscope to
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and cereal grasses. They hunted large and small animals and birds‚ fish‚ and marine life DREAMTIME: a complex outlook on the world Dreamtime: recounted the beginning of world‚ how things happened‚ nature stuff (religion ish) Exchanged stones‚ pigments‚
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Resulting in Betacyanin Leakage By: Trevor Sandum‚ Lab 2‚ March 9‚ 2013 Introduction: A red pigment called Betacyanin located in the vacuole of the beet cells is released when the membrane is damaged (Danyk‚ 2013). The membrane is necessary for sustainability of the cell’s life‚ it separates the cell from the outside environment‚ and is responsible for diffusion‚ exocytosis and endocytosis‚ and transport. It can be damaged by stress such as changes in the phospholipid bilayer
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Blood plasma is the fluid part of blood that contains nutrients‚ glucose‚ proteins‚ minerals‚ enzymes‚ waste products‚ antibodies‚ clotting proteins and hormones. Its role is transporting the substances around the body. Plasma contains 90% water and only 10 the solutes. Erythrocytes (also called red blood cells) are biconcave disks‚ containing haemoglobin that transports oxygen. They transport the oxygen to cells all over the body. The surface area to volume ratio is very large on the erythrocytes
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All cultures are centered around belief structures that continue over a long period time‚ but some of the practices and rituals associated with these beliefs can become shuffled and this can drastically set two religions apart. The Mayans and the Aztecs of Mesoamerica are no different in this sense. Both cultures were “obsessed” with the stars and their movement in the heavens and they each built large observatories to watch and record what was happening‚ buildings that still exist to this day
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Metallobiomolecules METALLOBIOMOLECULES CONTENTS 1. Introduction Metallobiomolecules 2. Classification Metallobiomolecules 2.1. Transport and of to Storage Proteins 2.2. Oxygen binding Today scientists try to explore the chemistry basis behind the biological processes. As a result of this‚ new areas have evolved such as bioinorganic chemistry and bioorganic chemistry. In this section we will talk about an important concept in bioinorganic chemistry called “Metallobiomolecules”. Metallobiomolecules
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