Module 2.1: Biological Molecules * State the functions of biological molecules in organisms Carbohydrates – energy storage and supply‚ structure (in some organisms) Proteins – Structure‚ transport‚ enzymes‚ antibodies‚ most hormones Lipids – Membranes‚ energy supply‚ thermal insulation‚ protective layers/padding‚ electrical insulation in neurones‚ some hormones Vitamins and minerals – From parts of some larger molecules and take part in some metabolic reactions‚ some act as coenzymes or
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Year 9 Biology Notes Keeping Healthy Test * Metabolic Rate- How quickly the chemical reactions (metabolism) are taking place within cells * In a balanced diet‚ you need- -Carbohydrates to build cells and to release energy. -Minerals and Vitamins in small amounts to keep the body functioning. -Water because we lose 70% form sweat‚ breath‚ tears‚ urine‚ faeces etc. -Fibre to prevent constipation and bowel cancer. * Malnutrition- eating a diet which is not balanced which can lead
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Unit 5 Biology notes Contents Section 9.1 – Sensory Reception 3 Section 9.2 – Nervous Control 4 Section 9.3 – Control of heart rate 5 Section 9.4 – Role of receptors 6 Section 10.1 – Coordination 8 Section 10.2 – Neurons 10 Section 10.3 – The nerve impulse 11 Section 10.5 – The speed of a nerve impulse 12 Section 10.6/10.7 – Structure and function of the synapse / Transmission across
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EMPA (Unit 3) Revision Booklet Tables Things to always include on tasks 1 & 2: An informative title (describe what the data shows) Descriptive headings The units (only one type) in the form “pulse rate /bmp” First column containing the independent variable (the thing that is constant) Example: The time taken for starch to be digested by amylase at different temperatures. Temperature /degrees C Time taken for Digestion /s 5 115 10 101 15 85 20 75
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Centre Number For Examiner’s Use Candidate Number Surname Other Names Examiner’s Initials Candidate Signature Question General Certificate of Secondary Education Higher Tier January 2013 Science A BL1HP H Unit Biology B1 Biology Unit Biology B1 Wednesday 9 January 2013 9.00 am to 10.00 am Mark 1 2 3 4 5 6 7 8 TOTAL For this paper you must have: a ruler. You may use a calculator. Time allowed 1 hour Instructions Use black ink or black ball-point pen. Fill in the boxes at the
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Surname Centre Number Candidate Signature Other Names Candidate Number Date Leave blank General Certificate of Secondary Education June 2008 / June 2009 SCIENCE / BIOLOGY ISA B2.2 Photosynthesis ASCC/BLYC/B2.2 To be conducted before 4 May 2009 For submission in May 2008 or May 2009 or May 2010 For this paper you must have: • results tables and charts or graphs from your own investigation. You may use a calculator. For Teacher’s Use Section Mark 1 Time allowed: 45 minutes
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Topic 2- Pages 38-39 1a. A is a substrate for the enzyme as it has the complementary shape to fit into it. 1b. The non-competitive inhibitor decreases the RoR as it binds to somewhere else than the active site and then causes the active site to change shape meaning the substrate is no longer complementary so it wouldn’t bind together. 1ci. Peptide 1cii. The 35 and 52 amino acids are held close to form the active site due to the tight folding of the polypeptide chains 2ai. There will be
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Biology 2013 Spring Semester Project Name ____________________________ Date ______________ Per ___________ Article Question and Essay Packet 1) SEA OF DEBRIS a. What is causing the sea of debris? b. How much debris is produced every day from the Los Angeles area alone? c. What percent of the world’s oceans are covered with debris? d. What is the impact of this debris on wildlife? On habitat? e. What can be done about it? Vocabulary: Monofilament line
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www.maxpapers.com UNIVERSITY OF CAMBRIDGE INTERNATIONAL EXAMINATIONS International General Certificate of Secondary Education *0191634512* 0610/61 BIOLOGY Paper 6 Alternative to Practical May/June 2013 1 hour Candidates answer on the Question Paper. No Additional Materials are required. READ THESE INSTRUCTIONS FIRST Write your Centre number‚ candidate number and name on all the work you hand in. Write in dark blue or black pen. You may use a pencil for any diagrams or graphs
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Q1. Read the information about the trialling of the first contraceptive pill. The Pill was developed by a team of scientists led by Gregory Pincus. The team needed to carry out large scale trials on humans. In the summer of 1955‚ Pincus visited the island of Puerto Rico. Puerto Rico is one of the most densely populated areas in the world. Officials supported birth control as a form of population control. The women in Puerto Rico were mainly poor and uneducated. The scientists selected
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