SBI4U Exam Review Topic 1 1. The table below shows the level of hemoglobin measured in two different groups of athletes. Hemoglobin / grams per 100 cm3 Number of athletes tested Standard deviation / grams per 100 cm3 Group A 12.6 200 0.8 Group B 11.9 220 3.2 Which of the following statements is correct? A. Results from group B are more accurate because more athletes were tested. B. Results from group B are more reliable because it has a higher standard deviation. C.
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Grajo I. INTRODUCTION Bioinformatics is the branch of biological science which deals with the study of methods for storing‚ retrieving and analyzing biological data‚ such as nucleic acid (DNA/RNA) and protein sequence‚ structure‚ function‚ pathways and genetic interactions. It is very important since it contains large amount of information regarding biomolecules that a human mind is not able to store and process such data. There are different data bases that can be used like National Center
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Relevance mark (1) is deducted if protein synthesis or factors controlling enzyme action are discussed Give an account of enzyme function under the following headings: (a) the specificity of enzymes; 2 (b) the role of enzymes in biochemical pathways; 4 (c) competitive and non-competitive inhibition of enzymes. 4 (10) Each numbered point is worth 1 mark. The information in brackets is not a required part of the answer. (a) 1 One enzyme will only react with one type
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out. The phospholipids form a thin‚ flexible sheet while the proteins float in the phospholipid sheet like an ice berg‚ and the carbohydrates extend out from the proteins. The phospholipids are arranged in a bilayer‚ with their polar‚ hydrophilic phosphate heads facing outwards‚ and their non-polar‚ hydrophobic fatty acid tails facing each other in the middle of the bilayer. This hydrophobic layer acts as barriers to all but the smallest molecules‚ effectively isolating the two sides of the membranes
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Biology 103 Test 4 Chapters 9‚10‚11‚12 Multiple Choice 1) A monohybrid cross is A) the second generation of a self-fertilized plant. B) a breeding experiment in which the parental varieties have only one trait in common. C) a breeding experiment in which the parental varieties differ in only one character. D) a triploid plant that results from breeding two very different plants. E) a breeding experiment in which the parental varieties have only one prominent trait. 2) Which of the
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Wine is of great importance in our society today‚ and has been so for thousands of years. Grapes have been cultivated for wine production in the Near East since 4000BC‚ and in Egypt since 2500BC. They were spread from the Black Sea to Spain by the Greek Empire‚into Germany by the Romans and to the New World by Columbus. Wine has had religious significance as both an offering and a sacrament since Biblical times‚ and this has helped its development. Today an enormous variety of wines are available
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system because the oxygenated and deoxygenated bloods are separated. Kangaroo falls into the closed double circulatory system as shown as in Figure XXX. The blood passes through the heart twice in double circulatory system and is circulated in two pathways that are pulmonary circulation and systemic circulation (IvyRose Holistic‚ n.d.). In pulmonary circulation‚ the distance travel is from heart to the lungs. Deoxygenated blood is pumped to the lungs for gaseous exchange and the oxygenated blood travels
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Are You a Good or Bad Student? Being a good student is what everyone wants to believe they are. But in reality we all know that there are bad students. I‚ myself would like to believe I am a good student but when I looked over the facts it seems that I am not a bad or a good student. The first and foremost important quality of a good student is‚ of course‚ hard working. We can’t have a good result in academic success without training and effort. The next quality is active in community. A good student
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AP bio final study Study online at quizlet.com/_6ovb5 1. 2 carbon atoms are fed into the citric acid cycle as a result of the oxidation of one molecule of pyruvate falling statoliths trigger gravitropism 2 9. acrosomal reaction 2. a botanist discovers a plant that lacks the ability to form starch grains in root cells‚ yet the roots still grow downward. This evidence refutes the long standing hypothesis that A human red blood cell in an artery of the left arm is on its way to deliver
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Communication‚ Homeostasis & Energy Communication & Homeostasis Outline the need for communication systems within multicellular organisms‚ with reference to the need to respond to changes in the internal and external environment and to co-ordinate the activities of different organs. Organisms need to respond to external stimuli‚ e.g. temperature‚ oxygen concentration and levels of sunlight. These may be over time‚ e.g. winter fur to summer fur‚ or quickly‚ e.g. changing size of pupils. Internal
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