http://www.tallsimon.com Tallsimon and his random stuff Sat, 08 Nov 2008 17:45:21 +0000 http://backend.userland.com/rss092 en The Effect Of Varying Enzyme Concentration On The Breakdown Of Hydrogen Peroxide In The Presence Of Catalase Grade: 18/18 Words: 3000Hypothesis – Hydrogen peroxide will breakdown to oxygen and water in the presence of Catalase.  The reaction will increase with increasing enzyme concentration when molecules of hydrogen peroxide are freely available.  ... http://www.tallsimon.com/biology/the-effect-of-catalase-concentration-on-the-breakdown-of-hydrogen-peroxide/ AimTo investigate some of the properties of immobilised enzymes. IntroductionThe four-session practical exercise is designed to give some insight into the preparation and properties of immobilised enzymes. It consists of three parts: Preparation and properties of covalently-immobilised a-amylase.  Preparation and properties of non-covalently-immobilised a-amylase. The use of a packed-bed and stirred tank reactor.  Before starting work, ... http://www.tallsimon.com/biology/immobilised-amylase-assay-experiment/ This is an AS Level Biology EssayOUTLINE THE MAJOR FEATURES OF MENELIAN GENETICS. DISCUSS THE ROLE OF CHROMOSOMES IN EXPLAINING THESE PRINCIPLES.Gregor Mendel was an Augustinian nineteenth century monk who, due to a series of momentous experiments, is now widely regarded as the forefather of genetics.  Mendel studied the inheritance ... http://www.tallsimon.com/biology/mendelian-genetics-essay/ PredictionIn this section I will look at all the factors involved in the rate of reproduction of yeast cells, bring them together at the end of the section and deduct a scientific conclusion as to what I would expect to happen. Yeast Cell RespirationYeast cells, like any other organism, need a ... http://www.tallsimon.com/biology/the-effect-of-glucose-concentration-on-the-rate-of-reproduction-of-yeast-cells/ In this section I will discuss the factors relevant to the prediction. SuccessionThis is the process in which communities of plant and animal species are replaced over time by a series of different and usually more complex communities. It is driven by interspecific competition and an important aspect of it is ... http://www.tallsimon.com/biology/the-effect-of-succession-on-diversity-in-heather-moorland/ The effect of substrate concentration on the rate of decomposition of hydrogen peroxide when catalyzed by the enzyme catalase [I am aware that there may be errors in this document- I did it years ago. Please notify mo of them so that I can correct them.] http://www.tallsimon.com/biology/hydrogen-peroxide-decomposition-by-potato-catalase/ Chemistry Equillibrium ConstantsA summary of various chemical reaction equillibrium equations http://www.tallsimon.com/chemistry/equillibrium-constants/ Trends in the periodic tableA summary of the trends in chemical reactions across the different groups in the periodic table. http://www.tallsimon.com/chemistry/trends-in-the-periodic-table/ Why do we need enzymes?Reactions in cells must: Be controlled Occur under mild conditions Occur quickly Be specifically catalysed- only one product, only one substrate Be regulated by external factors Often be coupled to make them thermodynamically favourable (possible) How are proteins held in their three dimensional conformation? Covalent disulphide bridges                                                                        Between cysteine amino acids Electrostatic interactions F=q1q2/Dr2 D is dielectric constant- ... http://www.tallsimon.com/random-stories/summary-of-enzyme-kinetics/ Answering questions correctly makes all the difference. Here are some model questions and answers collected from previous papers and their mark schemes. 4.1 Sense Organs The Eye (Given with graph) Describe and explain how the distribution of the rod cells and cone cells relates to variation in sensitivity and visual acuity in different parts ... http://www.tallsimon.com/biology/the-senses-and-behaviour-revision/ The gut or alimentary canal can be considered as an extension or inversion of the epithelium or outer skin, as it is physiologically not part of the body. It runs from the mouth from the rectum, and varies in thickness. It has the following functions (comments in brackets for my ... http://www.tallsimon.com/biology/digestion-made-easy/ Pain is a common everyday experience, with as many as 87% of patients experiencing moderate or severe intensity at some time during their stay in hospital and 20-25% of the general population in Scotland reporting significant or severe pain lasting many months. It is essential in alerting us to actual ... http://www.tallsimon.com/medical/vertical-theme-overview-essay-pain/ Case-based discussion of lymphoma.Lympoma Slides http://www.tallsimon.com/medical/lymphoma/ A case-based discussion about multiple myeloma.Multiple Myeloma Slides http://www.tallsimon.com/medical/multiple-myeloma/ A simple case-based presentation on the differential diagnosis and management of panyctopaenia. http://www.tallsimon.com/medical/the-differential-diagnosis-and-management-of-pancytopaenia/ A sequence of moves for indian head massage- to remind you of a possible routine order. Only to be used with suitable training and certification. The author does not take any responsibility for the way in which this information is used. Introduction This is a basic introduction to indian head massage. More ... http://www.tallsimon.com/massage/49/ Massage sequences for foot, leg, arm, back, neck, shoulders and abdomen. Only to be used in conjunction with the necessary training, certification and insurance. The author takes no responsibility for the consequences of improper use of this information. Swedish Massage Sequences http://www.tallsimon.com/massage/swedish-massage-example-sequences/ This Essay was awarded a mark of A, so they say. Only the plan is includedFor this investigation I am going to investigate the effect of the concentration of an enzyme, in this case Amylase, on the time taken for the enzyme to fully breakdown the substrate, which in this case ... http://www.tallsimon.com/biology/the-effect-of-amylase-concentration-on-the-breakdown-of-starch/ Presented with raw potato how would you carry out an experiment to determine the concentration of the potato cell in molar strength? The experiment was set up to be as fair as possible. Then the potato chips were cut into 15 cylinders using a cork cutter and then cut to ... http://www.tallsimon.com/biology/osmolar-concentration-of-a-potato/ Introduction I learned about file permissions the hard way. I was trying to install and run CGI scripts on my newly-aquired unix server and was just using the cpanel file manager for some file management and a a browser for ftp. So I tried to find out what 0777 and 0644 meant. ... http://www.tallsimon.com/webmonkey/file-permissions-on-unix-servers-for-windows-users/