Name: ________________________ Class: ___________________ Date: __________ ID: A GENERAL BIOLOGY PRACTICE MIDTERM TEST 2010-2011 Multiple Choice: Identify the choice that completes the statement or answers the question. ____ 1. The work of scientists usually begins with a. testing a hypothesis. b. careful observations. c. d. creating experiments. drawing conclusions. ____ 2. What is the term for all parts of Earth inhabited by living things? a. population b. ecosystem c. biosphere
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In this assignment I will explain the physiology of two named body systems in relation to energy metabolism in the body. I will be explaining two body systems these are Respiratory system and Digestive system. Energy According to Wright (2007)‚ we need energy for everything we do. Energy can be found in different forms including chemical energy‚ electrical energy‚ thermal energy‚ radiant energy‚ mechanical energy and nuclear energy. We use energy all the time including when we are sleeping. We
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Cells of all organisms are capable in acquiring the energy necessary to fuel chemical reactions for growth‚ repair‚ survival‚ and reproduction. Photosynthesis & cellular respiration are the main pathways of energy flow in living things. Photosynthesis is a process by which plants and some other organisms convert‚ light energy from the sun‚ CO2 from the air & H2O from the earth‚ into chemical energy stored in molecules like glucose. Cellular respiration is a process in which O2 is delivered to cells
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cycle enzyme lack It seems to me that enzymes with the suffixes dehydrogenase break up substances and sythetase combine substances to make new products (http://biochemistryatitsbest.wordpress.com/2013/04/06/cori-cycle-review/‚ n.d.) Anaerobic Glycolysis occurs when there is continuing muscle activity. This produces some ATP for
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Carbohydrates‚ fats‚ and proteins can all be used as fuels in cellular respiration‚ but glucose is most commonly used as an example to examine the reactions and pathways involved. Cellular Respiration can be divided into three metabolic processes; Glycolysis that occurs in the cytoplasm‚ Krebs cycle that takes place in the matrix of the mitochondria‚ and Oxidative phosphorylation that occurs via the electron
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After reviewing the case study and each individual‚ I was able to distinguish a few similarities between their deaths. The symptoms that most patient’s exhibited were a headache‚ confusion‚ shortness of breath or rapid breathing‚ dizziness‚ and vomiting (Gazdik‚ 2010). Another similarity between the individuals was that most of their deaths occurred within a few hours of their symptoms and were very rapid (Gazdik‚ 2010). A connection between the seven individuals is that they all resided in the same
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as anaerobic (Van Neil‚ 2008). Our reactions occurs when yeasts is added to a solution of glucose and water. Fermentation starts with a process called glycolysis. In glycolysis Glucose is broken down into two molecules of pyruvate and a net yield of 2 NADH (electron carrier) and 2 ATP (adenosine triphosphate) molecules. The first step of glycolysis is the energy investment phase. In which 2 ATP’s are added to the Glucose molecule‚ which produces 2 ADP’s and Fructose 1‚ 6-biphosphate. This is followed
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energy from glucose and other carbon-based molecules to produce ATP when oxygen is present. The formula for cellular respiration is C6H12O6+ 6O2= 6CO2= 6H2O. The process of respiration contains three main parts‚ glycolysis‚ Krebs cycle‚ and the Electron Transport Chain. The process of glycolysis takes place in the cytoplasm and is considered an anaerobic process which splits glucose into two three-carbon molecules and makes two molecules of ATP. The Krebs cycle takes place in the interior space of the
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fructose in the liver can cause the death of liver cells. Hereditary Fructose Intolerance If fructose-1-phosphate is not being broken down by aldolaseB its products (glyceraldehyde and dihydroxyacetone phosphate) are not available to perform glycolysis in which the end product is ATP. Also‚ the phosphate is bound to the Fructose-1-Phosphate and not available to the cells to produce ATP reducing the available ATP for the cells to use even more. Also fructose-1-phosphate signals for glucokinase
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phosphate by the enzyme fructokinase. Then fructose 1 phosphate is further broken down into dihydroxyacetone phosphate (DHAP) and glyceraldehyde by the enzyme aldolase b. (Hudon-Miller‚ 2012). At this point‚ DHAP and glyceraldehyde enter the glycolysis cycle where they can be further processed into ATP‚ the body’s main source of energy. Deficiency in aldolase b Aldolase b is the enzyme which breaks down fructose 1 phosphate into DHAP and glyceraldehyde. Hereditary fructose intolerance
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