Most strands of this bacteria are found to be harmless and even healthy to be part of the human digestive system, however some strands can cause to the development of serious problems like . Dependent Variable: Degree of growth of plant towards a light source. They are produced in nature by soil bacteria and fungi. Writing the IA Your introduction is about summarizing what you are doing and why you are doing it. 22 Biology IA Topic Ideas | IB | ++tutors Thankfully, weve asked some of our favourite IB graduates for some of the ideas they pursued! The following examples are not unethical, but just not very good, because the data is rarely enough for a good analysis and difficult to control. Majority of them are restricted to the intestine Designed by Harvard tutors to allow you exceed beyond expectations. This could be compared to listening to music where research has been done to establish that pulse rate can be affected by music. Comparing the Carbon Dioxide levels in the air exhaled after and before workout sessions. While there is a considerable challenge in designing apparatus and growing plants the idea of using plants to filter the water in 'ecological' swimming pools is quite well established. It is possible to establish a theoretical link between mild stress and adrenaline (epinephrine) which will affect features in the body including pupil size but it is not possible to directly measure the level of any hormones in the body. Student work is internally assessed by the teacher and externally moderated by the IB. Independent Variable: Light exposure, Different Species, Atmospheric CO2 concentration, Dependent Variable: Stomatal density (seen under the microscope). 50 IB Biology IA Ideas - IB Better IA Descriptors-1 - IA Descriptors for IB Biology; PDB-101 Molecule of the Month Ribosome; Hardy-Weinberg equation - example; Biology paper 1 HL n19; . Sterilize the spreader by holding it over the spirit lamp and then cooling it in the laminar airflow. At the end of a long endurance event cramps and muscle fatigue will be evident but this is not possible to recreate in the lab in school. Human benchmark lab - Quite a nice small set of tests, including reaction times, Mean arterial pressure calculator online - a useful little calculator, Sciencelab Chemical data sheets MSDS (Materials Safety data sheets) - useful for risk assessments, document.write(new Date().getFullYear()) InThinking How to measure growth of algae with colorimeter - Biology Stack Exchange 30, Exploring mollusc shapes with regards to an external variable e.g. The five assessment criteria are personal engagement, exploration, analysis, evaluation and communication. They investigate the hypothesis that. Compost is made from dead plants and manure is the waste from animals. Don't do it! You can find more information here, Independent Variable: Different Antibiotics, Different Seeds, Dependent Variable: Success of Germination, Rate of Germination. 1: Cell Biology 1.1: Introduction to Cells 1.2: Ultrastructure of Cells 1.3: Membrane Structure 1.4: Membrane Transport 1.5: The Origin of Cells 1.6: Cell Division 2: Molecular Biology 2.1: Molecules to Metabolism 2.2: Water 2.3: Carbohydrates and Lipids 2.4: Proteins 2.5: Enzymes 2.6: DNA and RNA 2.7: DNA Replication, Transcription and Translation 16, Determine the effect of glucose concentration on the rate of osmosis. should include all the normal conventions of d.p. Your data shall be kept until you unsubscribe. Also, be sure that you know all of the rules and regulations for your particular science fair before you begin your project. Click, See What effect does temperature have on the ripening process of a fruit?. Keep the research question brief and relevant. Bacteria - Definition, Shapes, Characteristics, Types & Examples : Limitations and Improvements should be specified. I got a 7 for Biology HL and my IA was awarded a 22/24. Studying how different carbohydrates in edibles impact the blood sugar levels in humans. This is a nice wet laboratory project and there are some simple ways to measure the growth of the bacteria but these can be fiddly to work out, and concentrations of bacteria used in inoculations will need working out. In addition to that, the IA explores how inhibitor ethanol affects the rate of the reaction. This is a great idea, but it could be complex and time consuming depending on the lab. Lost your password? Remember, the Independent variable is one that you are allowed to change(just one); the Dependent variable is one that you measure as it changes with the Independent variable; all the other experiment conditions must be kept constant to ensure that the experiment is fair. Is there an optimum intensity of warm up to achieve best performance? A limitation with an experiment that finds the relationship between sodium ion concentration and the rate of neurogenesis in the hippocampus of the brain is that its results are not applicable to other parts of the nervous system. 3, Describe how the primary productivity of algae changes with temperature, algae concentration, other aquatic plants, salinity, nutrients, and any other variables you may want to consider. Antibiotics | Microbes and the human body | Microbiology Society It belongs to the family of Enterobacteriaceae where most of them are harmless. It might seem like a lot of work, but with the right topic in hand, you will go beyond your expectations! 10, Can we slow down the decaying times of vegetables? Antibiotics. The internal assessment requirements are the same for biology, chemistry and physics. There should be a distinct maxima in the curve, that is the most sensitive wavelength, and is the one you should use for all your experiments. Biology HL IA Idea Proposal - Bacteria vs Fertilizer - Stuvia To find out more, see our. Use the epidemiological data to measure rates of change. The choice of physiological features of the body could include heart rate, or pupil size, or skin redness. Several university Extension services are now offering easy-to-use websites for those . IB Acronym Glossary - Please help IB Community :) 8, How do the buffering actions of milk, yogurt, juices, detergents etc. These proportions make enough nutrient agar to prepare two petri dishes. Interactions of Bacteria and Fungi on Decomposing Litter Biology . If some abiotic factors can also be recorded including the pollution level, eg nitrate level, BOD, turbidity etc. Biology_IA.pdf - IB Biology HL II - Internal Assessment http://www.xrite.com/online-color-test-challenge. These microbes assault the nourishment scraps that stick to, and in the middle of our 2 teeth. Of course the IB guidelines on experimentation needs to be followed and written consent sought for participants. Internal Assessments are the perfect way to get students to put their knowledge to use by Observing, Questioning, and Investigating. terms of service. Heres a quick summary of how you are supposed to choose an appropriate IB Biology IA idea for your report: Now that you know how to settle on that one perfect topic, lets quickly brief ourselves with the proper planning and procedure involved in the making of an IB Biology IA: Concise Research Question: Your Research Question and the Aim of the Investigation are separate sub-headings with different implications. Practical work could look at the density of aphids on leaves of different shades, or bumble bee feeding on flowers of different shapes or predator prey interactions etc. assessment, worth 20% of the final assessment, consists of one scientific investigation. Before we match you with one of our trusted tutors, we want to know a little bit about you so we can ensure the best possible support. Experimental setup:In this experiment, you will expose seeds in a germinating environment to different household products solutions at increasing concentrations. For example, an idea inspired by how the soil pH affects seed germination could be investigated in a new light; think of other factors controlling/affecting seed germination, and with a focus on quantitative data, you could progress further in your report. By submitting this form, I agree to the data entered being used by Nail IBNSW for sending Independent Variables: Different toothpaste manufacturers (Colgate vs Sensodyne vs Crest vs Aquafresh), Dependent Variable: Success of bacterial growth (seen by growth on an agar plate), Milk goes off because of lactobacilli reproduction and growth. Can temperature, humidity, or exposure to sunlight affect how quickly vegetables decay? Using the pipette dropper to suck in 10 ml of the 3% hydrogen peroxide . Nice to see you here. Subject to the conditions provided for by applicable Heres a useful link for ventilation rates. , its objectives, partwise breakdown, and what IB expects of you. They found that they could propagate their leavening by saving a bit of unused dough to sow the . Biology in the DP - International Baccalaureate To what extent does the mass of sodium nitrate powder have an effect on the quality of beef as a preservative. The challenge will be in deciding which concentrations to test and in explaining the results. Weaknesses like using high uncertainty apparatus should be addressed in the evaluation. Biology IA Checklist 2022: Step by Step Guide for a Perfect IA - IB Better 20, Testing the effectiveness of different types of toothpaste in inhibiting the growth of different types of bacteria.https://qa.lanterna.com/wp-content/uploads/2019/04/Biology-Revision-Guide-213x300.png, 21, The effect of temperature / light on fruit ripening, 22, Exploring stomatal density in a variety of conditions, 23, Testing the effectiveness of toothpaste types, 24, Investigating the effect of smoke water on the germination and growth of E.pilularis, 25, Exploring the effect of sunlight on biomass, 26, Exploring effect of light levels on the predation of the peppered moth, 27, Investigating the effect of different light intensities on water weeds. In paper 1 there are 30 (at SL) or 40 (at HL) multiple-choice questions. Koreans eat kimchi year round, enjoying its spicy taste and the fact that it contains loads of vitamins B and C. In this cooking and food science fair project, you will make kimchi from scratch and investigate changes in pH and glucose as the kimchi ferments. Read more here, Dependent Variable: Rate of transpiration (measure with a Potometer), Challenges: Getting the plants, Setting up a Potometer. (DOC) BIOLOGY Practice IA | Riona Claire - Academia.edu Before we dive more in-depth, you might want to check out our premium IB Biology SL Notes to own your Biology SL papers! Measuring theses factors might be tricky and will involve some testing, although using a phone camera or a video camera could help. Five biological experiments you can do at home - University Post using potassium permanganate and heating, from a protocol from Science & plants for schools. This investigation is Design an experiment to investigate a factor which affects the precision of colour vision, age, tiredness, gender, eye colour, etc. 12 Examples and Tips for IB Biology IA | MakeSensei Exploring how the reaction times of humans get affected with age. There needs to be some clear links to the biology of blood pressure and how exercise affects it. This is interesting because the higher concentrations will cause outward osmosis in the yeast and perhaps slow down respiration, or even kill the yeast. If you are still not dissuaded then be sure to collect enough data and try to be analytical, don't mix types of music and tempos of music and try to keep the investigation to some biological cause or effect. Biology Internal Assessment Topics: 15+ Sample, Example Topics What is the most effective way of fighting an endemic? DP Biology: Mobile phone bacteria experiment Antibiotics are used to treat plants for bacteria. Controlling factors which can affect blood pressure could be an investigation in itself! Without further adieu, lets dive headfirst into, (Metabolism, Cell Respiration, Photosynthesis), Want some A-quality guidance? Starting at deep purple, and ending at far red, write down the A values. All rights reserved. Before you can grow bacteria, you'll need to prepare sterile culture dishes. Ventilation rate is a measure of how quickly you breathe. Canada: +1 (647) 249-7179USA (WhatsApp): +1 (678) 679-2365edu@plusplustutors.com, 407 Iroquois Shore Rd. While it is an interesting idea, like the example above there are many factors to control in this investigation, which is an interesting modification of a standard lab looking at exercise. Top 80 Most Common IB Biology Exam Questions. 12, What happens after the best-by date of dairy products? It is thought that there may be some aggressive behaviour depending on the qualities of the sportsman, trainer's tactics, and sports fan and media pressure. Which pigments are made first in a growing leaf, or are all the pigments made at the same time? Teens can work to find out why certain plants present certain colors. Neither should the idea be too generic and nor too simplistic. How does different sodium chloride concentrations affect seed germination in the bougainvillea plant? How does the percentage of salinity in water affect the rate of growth of radishes in mass? Toothpaste is labelled according to how natural or how chemical the contents are. Different plants will change their transpiration rates in response to the environment. with current laws and regulations, you can unsubscribe at any time by clicking on the link in NOTES: Probiotics eat the lactose in milk through fermentation. The external assessment of biology consists of three written papers. IB HL Biology IA Proposal - The effect of lactase on various - StuDocu Studying the effect of enzymes on Cheese production. At SL and HL levels, the performance is rated concerning a defined assessment criterion which is marked out of the score of 24. How does increasing the concentration of Oxytetracycline in mg/L affect root elongation in cm of Citrus limon? HL Psychology or HL History? tillu22. If youre struggling with the Paper 2 Data Based Questions, we also have a post about that here. . Personal engagement, Exploration, Analysis, Evaluation, and Communication are the criteria against which the investigation is assessed. Independent Variables: How temperature affects transmission viral diseases, How different methods of transmission affect rates of spreading, Challenge: Statistical analysis Website with loads of data on infectious disease: http://globalhealthgovernance.org/blog/2017/12/1/how-to-find-data-on-infectious-disease-outbreaks, Use online colour vision tests to see how different factors affect colour blindness. Bacterial Growth and Nutrition | Biology Ideas | Microbiology Media The biological explanation of why blood pressure might change when reading may be tenuous. 15. So there we have it! Browse thousands of Internal Assessment, Extended Essay, and TOK examples. Experimental Setup:Create different environments for vegetables to decay in and measure the decay over a fixed period. Selecting an IBxq Biology IA idea has never been easier! opening the floodgates to that sweet 45! Experimental setup:Find a few friends willing to participate and measure their ventilation rates with a respirometer (the human version) and then subject them to different stimuli. The internal assessment, worth 20% of the final assessment, consists of one scientific investigation. 1. Whether you are looking for immediate help for IB Biology internal assessments ideas, online tutoring for any IB subject including biology or best study material for any IB group 1 to IB . How do natural antiseptics (ginger and turmeric) compare with commercial antiseptics in the inhibition of growth of e. coli bacteria? The procedure used should be well structured. How do different concentrations of lactases affect the breakdown of disaccharides like lactose in milk effectively? IA Advice & Ideas; Help! The effect of pets on the diversity of plants in a garden lawn. Contact, Twitter | These Biology IA Ideas Will Help You Get A High Grade In Your Biology IA. Exemplars. In some other cases E. coli can also cause urinary tract infections. The data must be analysed by the student and tables / graphs etc. Look at the genetic similarities and differences between species, kingdoms, phylas, classes, genuses, orders, families, and domains. This is a bit more complex than a simple pulse rate investigation, but the challenge to control variables is equally great. biology IA --- bacteria ? - Biology and ESS - IB Survival How do the factors temperature and light intensity that affect photosynthesis balance out each other when it comes to the time taken for photosynthesis to occur? 996+ Videos, 1180+ PDF Files, 5858+ Sample questions.

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