GCSE Biology B General Certificate of Secondary Education Unit B731/02: Modules B1‚ B2‚ B3 (Higher Tier) Mark Scheme for June 2012 Oxford Cambridge and RSA Examinations OCR (Oxford Cambridge and RSA) is a leading UK awarding body‚ providing a wide range of qualifications to meet the needs of candidates of all ages and abilities. OCR qualifications include AS/A Levels‚ Diplomas‚ GCSEs‚ OCR Nationals‚ Functional Skills‚ Key Skills‚ Entry Level qualifications‚ NVQs and vocational qualifications
Premium Hypertension Heart Blood
Biology textbook- pg. 80 3) Distinguish between the autotrophic and heterotrophic nature of plants and animals. Animals have heterotrophic cells; hence‚ they live off nutrients of other species by eating. Most plants have autotrophic cells‚ which allow them to generate their own food with photosynthesis. 4) Explain the following statement: ‘All living things depend on plants’. As animals are heterotrophs‚ they need to eat other species to survive. If mammals only depended on other mammals‚ there
Free Digestion Small intestine Digestive system
The volume of one mole of gas under conditions of room temperature and pressure Data collection and processing Quantitative data in table with units and uncertainties | Mass of Magnesium(Mg) (g) | Volume of Hydrogen (H₂) (cm³) | 1st trial | 0.040 | 39.9 | 2nd trial | 0.040 | 40.3 | 3rd trial | 0.035 | 36.5 | Quantitative data: The Magnesium was silvery-white‚ lustrous and relatively flexible before being placed in the burette. Whilst reacting with the hydrochloric acid‚ it dissolved
Premium Chlorine Chemistry Chemical reaction
and 2 ------------------------------------------------- Assignment 2012/2013 – Semester 2 ------------------------------------------------- B. Com (Major in Banking and Finance) – Year III ------------------------------------------------- Ratio Analysis Report ------------------------------------------------- Student: Kevin Galea 205891 (M) ------------------------------------------------- Lecturer: Dr. Emanuel Camilleri Introduction The purpose of the following report is to aid
Premium Generally Accepted Accounting Principles Financial ratios Financial ratio
Australian Ectotherms and Endotherms- temperature regulation Part A :Types of Temperature regulation 1. Write down the meaning of the terms endotherm and ectotherm. Consult a textbook if necessary. a. endotherm Endotherms are animals that can maintain a constant internal body temperature. For instance mammals and birds are true endotherms that can maintain a constant internal body temperature b. ectotherm Ectotherms are animals that are not able to regulate their body temperature or in simple
Premium Temperature Energy Thermodynamics
succinate to fumarate‚ thus loses hydrogen ions and electrons for use in generating ATP. It is important to know what inhibitors affect the activity of this enzyme which eventually will affect the whole process of cellular respiration. In this experiment‚ 1M Malonate( CH2(COO)22-) and 0.1M of Sodium Fluoride (NaF) ‚were employed as inhibitors to the enzyme succinate dehydrogenase to assess their effect on cellular respiration. Malonate is a molecule that inhibits the oxidization of succinate. Besides
Premium Adenosine triphosphate Cellular respiration Citric acid cycle
Surface Tension Properties of Liquids Introduction The purpose of this experiment is to measure and record the surface tension of water and other aqueous solutions using capillary rise method techniques and practicing lab safety. In this laboratory the surface tension of water depends on the concentration of the following solutes; NaCl‚ acetone‚ and sodium dodecyl sulfate (SDS). Intermolecular interactions as well as other phases (solid‚ or air) make a liquid exist. The data collected will show
Premium
Graphs‚ Groups and Surfaces 1 Introduction In this paper‚ we will discuss the interactions among graphs‚ groups and surfaces. For any given graph‚ we know that there is an automorphism group associated with it. On the other hand‚ for any group‚ we could associate with it a graph representation‚ namely a Cayley graph of presentations of the group. We will first describe such a correspondence. Also‚ a graph is always embeddable in some surface. So we will then focus on properties of graphs
Premium Group Graph theory
UNIVERSITY OF CAMBRIDGE INTERNATIONAL EXAMINATIONS General Certificate of Education Advanced Subsidiary Level and Advanced Level CHAPTERS CLASSIFIED:ENZYMES 9700/2 BIOLOGY Paper 2 Structured Question AS For year 2014 Candidates answer on the Question Paper. No Additional Materials are required. READ THESE INSTRUCTIONS FIRST Write your candidate number and name on all the work you hand in. Write in dark blue or black pen. You may use a soft pencil for any diagrams‚ graphs or rough
Premium Enzyme
gravity and the type of surface was tested through a series of experiments. In lab 4.1‚ the force of gravity was tested through various surface types‚ including: tabletop‚ waxed paper‚ paper towel‚ fine sandpaper‚ and coarse sand paper. In lab 4.2‚ two different surface types that were tested included: tabletop and coarse sand paper. This lab compared the two averages between both tabletop and coarse sandpaper using different amounts of blocks. In lab 4.3‚ the surface area of the blocks sliding across
Premium Chemistry Titration Acid