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How does the shade of a leaf relate to the composition of photosynthetic pigments it contains? Canada: +1 (647) 249-7179USA (WhatsApp): +1 (678) 679-2365edu@plusplustutors.com, 407 Iroquois Shore Rd. Other possibilities are paper simulations, e.g. It is quite easy to record the number of individual plants / animals of a single species in a river at different distances above and below a possible source of pollution. Independent Variable: Different household cleaning products/increasing concentrations of cleaning product. Constraints, if any, need to be mentioned as well. Experimental setup:Set up an experiment that measures the ethylene or CO2 levels of fruits over time, and expose different fruits to different independent variables. I investigated the change in mitotic index that occurred in onion root tips when they germinated in solutions of differing K+ ion concentration. Atriplex amnicola) and expose them to increasing increments of independent variables, observing how their transpiration rates change. It is all the same when choosing that one Biology IA idea from a platter full of inspiration. By Background, IB expects you to briefly explain what encouraged you to choose a particular topic and hopefully a personal story that validates your choice and engagement. 3. . The Aim answers Why while the Research Question answers the What. 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. Click, See Grab ideas, see examples and create own perfect Biology essay and research paper! Nice to see you here. This investigation is going to require a very precise research question and some careful methodology to ensure that the data collected can be used to answer the RQ. This investigation tries to establish a pattern between the weather and the spread of a disease. This gives the microbe an advantage when competing for food and water and other limited resources in a particular habitat, as the antibiotic kills off their . Help us improve CareerBuilder by providing feedback about this job: Report this job Job ID: 9096_4208814345. Independent, Dependent variables need to be highlighted, as should the hypothesis. Using a previously characterized and described abdominal model to define the avian immune response to Salmonella intra-abdominal challenge in chickens, we have adapted this technique for the study of chickens' immune response to a Campylobacter intra-abdominal challenge. 25 Unique Biology IA Ideas Mitosis: Calculate the Mitotic Index in onions and garlic How do different household products affect plant growth Effect of different types of contamination of plants Testing salt tolerance on plants The effect of different variables on fruit and vegetable decay Hereditary effect of Parkinson These five biology research topics are for graduate-level students, catering specifically to those in top programs around the country: What evidence is there of a pandemic that can wipe out half of the world's population? with peppered moth types. A 125ml bottle of nutrient agar contains enough to fill about 10 petri dishes. 30 Biology IA topic ideas to get your lab report started! It is very easy to extract DNA at home just using everyday kitchen supplies. This page is a simple list of general biological ideas for investigations. What is the most effective way of fighting an endemic? Maybe you can suggest that to your teacher? It is known that you should have at least 25 samples of data for your Biology IA, but let us explain why. Stomata are the areas of gas exchange in leaves. 24. http://globalhealthgovernance.org/blog/2017/12/1/how-to-find-data-on-infectious-disease-outbreaks, Heres a useful link for ventilation rates. When it comes to selecting from several IB Biology IA ideas for your investigation, it is essential to note that your IA would either require you to: Carry out an experimental investigation in the laboratory or Draw interpretation from a credible database or Make a detailed analysis using a simulation/modeling. 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. 1. Biology IA Ideas with Independent Variables 1. Some of the challenges of this type of investigation will be controlling other factors which affect the growth of plants. IB Biology IA Ideas Different abiotic factors affect the growth of different plants, test the different conditions and then note how plant species change in their presence. . Measuring the energy content of a packet of Cheetos 30 IB Biology IA Topic Ideas 1. Weaknesses like using high uncertainty apparatus should be addressed in the evaluation. Measuring the change in iron levels of avocados as they go through different ripening stages 25. Proper research on your part is a bare minimum, and the rest follows. Take 10 micro liters of the cultured. Challenges: Being consistent in assessing the fruit ripeness. Comparing boys and girls for example will be impossible, unless the sample size is very large. Sometimes sites go ofline or change their address. Test the stomatal density of different leaves exposed to variable conditions using a microscope. Before we go looking for IB Biology IA ideas, lets get a clear comprehension of the. This is nice project if there is a specific environmental gradient in the site being investigated. Subscribe and get the latest IB guides, notes,news, tips and product updates. 4, How does varying the gel concentrations of agarose affect DNA migration through a gel? They are produced in nature by soil bacteria and fungi. 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. 1 Department of Food Chemistry,Faculty of Pharmacy, Mahidol University 2 Department of Microbiology, Faculty of Pharmacy, Mahidol University Abstract Recent trends show that consumers have been searching for functional foods to improve bodily functions and overall health. On this note, we wish you all the very best for your IB Biology IA Journey :). When looking for information, be sure to seek information from institutions and agencies that share science-based, objective results. using potassium permanganate and heating, from a protocol from Science & plants for schools. Background Information: There are a lot of microscopic organisms and other miniaturized scale creatures living in our mouth. legislation, you have rights in relation to your data. Decomposing bacteria and fungi are organisms that help the process of decomposition. Lots of plant ideas in the questions and answers It is also possible to use this method to study glucose levels in ripening fruit, lactase activity in milk producing glucose or maltase activity in germinating seeds. This begs the question, is there an ideal concentration of sucrose for yeast growth? Internal assessment criteria the new assessment model uses five criteria to assess the final report of the individual investigation with the following raw marks and weightings assigned: Complete this form and well match you with a Tutor to help you master your EE! A full experimental setup can be found on this link. Natural selection - lab bench Which type of water fleas escape predators best? Luckily, theres so many great topics to choose from, and we've asked some of our top team to note down some topics that might inspire your own incredible research! Before we dive more in-depth, you might want to check out our, to own your Biology SL papers! 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 NOTES: Probiotics eat the lactose in milk through fermentation. Of course there will be other factors to consider, for example local feature of the habitat where the plants are growing and the aspect of the flowers' location, not to mention grazing and grass cutting. OP. The internal assessment requirements are the same for biology, chemistry and physics. The release of CO2 by the body in the lungs is not simple either, factors to consider include the relative amounts of aerobic and anaerobic respiration, as well as the position of the muscles being exercised. Exploring how the reaction times of humans get affected with age. 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 . In general, keep in mind that for your Chemistry IA we want to measuring how changing one variable has an [], Choosing where to start with an IA can be the hardest part, and this is definitely true for the Physics IA. On 10/25/2014 at 9:58 AM, AndovarEdoras said: On 10/25/2014 at 9:02 AM, mariiia said: you can do something with the rate at which cells/bacteria/etc multiply, which I think is population growth so it would involve natural logarithms and exponential curves at least. The effect of pets on the diversity of plants in a garden lawn. it might even be possible to use mesocosms to perform this investigation as these would make it easier to control more of the other variables. The work produced by students is assessed internally by the teacher first, and it is then moderated externally by the IB. Email length need to be from 5 to 40 characters, Password length need to be from 5 to 40 characters. How do natural antiseptics (ginger and turmeric) compare with commercial antiseptics in the inhibition of growth of e. coli bacteria? Look at the genetic similarities and differences between species, kingdoms, phylas, classes, genuses, orders, families, and domains. These Biology IA Ideas Will Help You Get A High Grade In Your Biology IA. The distinctive features of human physiology. These microbes assault the nourishment scraps that stick to, and in the middle of our 2 teeth. Hurry, this offer ends on January 17th! Registration confirmation will be emailed to you. A quart-sized bowl works great. Even though many of these topics led to high scores for some of our graduates in the past, it is important that you listen to the advice of your subject teacher before choosing any topic! For instance, if you choose to investigate how light levels affect the predation of peppered moths, you could set a background of you have gained a fascination for that species ever since it was introduced to you for some explanation in your regular classes and eventually give more scientific basis for your choice. (Use egg as imitation of tooth). Bacteria are single-celled microorganisms with prokaryotic cells, which are single cells that do not have organelles or a true nucleus and are less complex than eukaryotic cells. 15. Alternatively, sign up to our sites at www.studyib.net Dependent Variable: Ethylene levels, CO2 production, qualitative assessment. classes to learn/preach! . Of course, you can use any of our topics for free. 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. Different plants that live in different conditions will have different requirements for gas exchange. Many say that as we get older, our reaction times slow down, see if this is true! IA Review. Click here (amylase) or Click here ( pancreatin amylase) from Carolina. I'll do so in a series of questions that will help you probe deeper into your IA. IB Biology IA: Enzymes Institution GEMS World Academy Level 7 IA (22/25 points) conducted on topic 2.5 (enzymes). This FREE guide reveals the most powerful information for boosting your extended essay score and IB Acronym Glossary - Please help IB Community :) IB HL Biology IA Proposal - The effect of lactase on various percentages of milk The digestive - Studocu the effect of lactase on various percentages of milk the digestive enzyme lactase breaks down sugar in milk called lactose, in order to produce glucose. 8, How do the buffering actions of milk, yogurt, juices, detergents etc. Clearly state your interest. The will (hopefully) impact the success of germination. 12, What happens after the best-by date of dairy products? Experimental setup:In this experiment, you will expose seeds in a germinating environment to different household products solutions at increasing concentrations. Facebook How does the composition of soil affect the growth of runner Plants from the original plant? Population growth curves. Kimchi is a traditional fermented cabbage dish from Korea. Experimental setup:construct a seed germination experiment with different seeds and add increasing solutions of NaCl, observing the impact of increasing salt concentration in different seeds. Selecting an IBxq Biology IA idea has never been easier! Dependent Variable: Degree of growth of plant towards a light source. Writing the IA Your introduction is about summarizing what you are doing and why you are doing it. Keep the research question brief and relevant. Without further adieu, lets dive headfirst into, (Metabolism, Cell Respiration, Photosynthesis), Want some A-quality guidance? Or find the correlation between the height of one's parents and their own height, then make predictions based on your findings. Biology IA Checklist for HL & SL The International Baccalaureate Biology Internal Assessment makes up 20% of the final grade achieved by Biology HL and Biology SL students. Starting at deep purple, and ending at far red, write down the A values. Read more about it here. Investigating how the concentration of RuBisCo in the leaves of a plant species varies with varied exposure to sunlight. Majority of them are restricted to the intestine Originally Answered: what are some examples of good biology IA's? Ensuring that there is enough data will also be important as there are likely to be quite a few other factors which will need controlling or considering at least. assessment, worth 20% of the final assessment, consists of one scientific investigation. Some suggestions of research questions may be; Is there a difference in the composition of photosynthetic pigments in the leaves of a plant found in the sun or the shade? Does it matter what type of light the plant is exposed to affect the growth of auxin? Remember! 30, Exploring mollusc shapes with regards to an external variable e.g. The challenge will be in deciding which concentrations to test and in explaining the results. Finding how the respiration rates of bakers yeast and lager and wine yeast in various sugar solutions compare. Using LeafLab - plant physiology/photosynthesis to test the effectiveness of different colours of light on the photosynthesis rate of tomato plants. Lower concentrations will slow respiration because of a lack of substrate. So there we have it! Bacterial Growth and Nutrition | Biology Ideas | Microbiology Media June 22, 2021 by Ruturaj Mundhe Culture media and Bacterial Growth Bacterial Growth and Culture media are solid, semisolid, and liquid nutrient preparations employed for the cultivation of microorganisms. It is a complex branch of biology that studies the smallest units and the living organisms. Independent Variable: Age, Tiredness, Gender, Eye Colour. )/ Studying, Dependent variable:Ventilation rate. This is a bit more complex than a simple pulse rate investigation, but the challenge to control variables is equally great. Soil respiration can be measured using a CO2 probe and a data logger the same equipment could be used to measure the rate of photosynthesis, although growth (or photosynthesis) can be measured in other ways too. 16. There are plenty of factors to control which makes this investigation difficult and if there isn't enough data or the controls are not in place this could lead to a low mark after much work. Posted October 26, 2015. at which many forms of bacteria thrive [9]. While having multiple trials is necessary for the investigation, each trial should also have multiple samples. 2.1.2 Salt Doenjang is incubated at different salt concentration, controlled by the amount of sodium chloride dissolved in 100 ml of . Level of passive aggression in individual sportsmen is found higher. Brian and also Louis G. Nickell and Alexander C. Finlay in the Journal of agricultural and Food chemistry, 2015. To find out more, see our. Lots of scope but not an easy investigation to complete in the time, in 12 pages. Here are a couple of other ideas you could browse and eventually take inspiration from: We hope these little ideas will help you brainstorm and explore further in the vast yet intriguing expanse, which is Biology. Antibiotics. Let's help inspire M22 students since it's already IA season! Extract your own DNA. Some diseases spread through direct contact, others are transmitted by an insect vector. IA is one that has been undertaken with complete zeal and enthusiasm. | Contact, Twitter Investigate how different species of plants respond differently to environmental stimuli. At this point, all apparatus should have been properly set-up and the experimentations should be able to commence. Exploring root hair cells and finding their visibility with age. 12 Investigation ideas with a biological twist. Perhaps another research question will be better, something linked to hormones, or to physical activity. 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. Stuck for Ideas planning your Biology IA? Pease comment on broken links and suggest alternative ideas in the comments. Here is a list of top 22 Biology Internal Assessment (IA) ideas: IB ++tutors is a Canadian company that is committed to providing global, high-quality IB private tutoring services by IB expert tutors. Some plants grow well in coastal soils with igh salt concentrations but others don't. You. Antibiotics are chemicals that kill or inhibit the growth of bacteria and are used to treat bacterial infections. This investigation is Design an experiment to investigate a factor which affects the precision of colour vision, age, tiredness, gender, eye colour, etc. Internal Assessments are the perfect way to get students to put their knowledge to use by Observing, Questioning, and Investigating. Sterilize the spreader by holding it over the spirit lamp and then cooling it in the laminar airflow. At Lanterna we have hundreds of tutors who smashed Biology. and uncertainties. Investigating muscle activity involved when standing on ones toes(Ballet dancers). This is an investigation to test a hypothesis that reaction time wll slow down with age. Another simple biology experiment involves going into your natural environment, such as a local park, to observe diversity among plant samples. cactus) and a halophyte (eg. The challenge is to explain why there might be a change using biology and then to test it using some type of ecological sampling. The intra-abdominal Campylobacter infection model facilitates the characterization of peripheral blood leukocyte . Pay attention to one that is interesting for you, and that you might have ideas on how to develop the topic on. 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. 1. How does cumin and turmeric powder, in comparison to indigestion tablets, affect the rate of neutralization of hydrochloric acid, measured by the difference of change of pH levels in 5 minutes? Exploring how the Water Quality Index (WQI) is affected by water obtained from Chemical Industries/Sewage Treatment Plants. Thankfully, weve asked some of our favourite IB graduates for some of the ideas they pursued! Follow the steps here to extract the DNA. Dependent Variable: Rate of Seed Germination. Get for free what others have paid $100s in tuition To seek where great ideas come from and change the way teachers/students learn in the 21st century. The procedure used should be well structured. Browse thousands of Internal Assessment, Extended Essay, and TOK examples. For 5,000 years or more, humans have mixed flour and water, waited for the mixture to ferment, and when it was good and sour and full of gas, used it as leavening to make dough rise. Ecological techniques and quadrat sampling could be used together with mapping of digging or scratching to establish whether the presence of a pet increases plant diversity or not. If a person exercises regularly they should have a better level of fitness, this might mean that their heart rate increases by less in the short burst of exercise than someone who does no regular exercise. 2, Testing global warming: How does CO2, water vapour, oxygen, or any other variable affect temperature inside a cutoff bottle exposed to simulated sunlight? Experimental setup:Follow this link to find out more about colour blindness and how to investigate it. Choosing the perfect IB Biology IA idea is only the first step in making ones IB Biology Investigation, but definitely, the most significant. Exemplars. So there we have it! The internal. The best investigations will have a biological reason why there might be a correlation between the IV and the DV. The IB advise student and teachers, each year, to avoid this sort of lab. If youre looking for guidance on how to actually write an IA once youve chosen your topic, check out our IA Checklist post! Plants also play a significant role in the environment by influencing climate and producing life-giving oxygen. 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? Click here to reset it. Homemade extraction of your own DNA. Practical procedures and controls will be the challenge, but data should be easy to record if the seedlings grow. 0. HL Biology IA Help! Some preparation time will be required to germinate and plant the seeds. Legal Lactobacilli reproduction and growth is the cause of milk spoilage. We are available: Mon-Fri 9am-7pm CESTSat 10-5pm CESTSun 12-5pm CEST. One nice idea might be to see if the growth in the lungs' vital capacity correlates better with the circumference of the skull or the length of the legs in children of different ages. If some abiotic factors can also be recorded including the pollution level, eg nitrate level, BOD, turbidity etc. IB Biology curriculum expects you to appreciate scientific problems in a global context with stimulating opportunities, and IB Biology IAs help you accomplish just that. A well planned, structured, and executed IA is one that has been undertaken with complete zeal and enthusiasm. It is imperative to acknowledge the safety protocols as established by IB and consider the ethical aspects of your investigation. To make the experiment more detailed, students can rub collected samples on filter paper to observe which plants present which colors. Perhaps some form of experiment using isotonic solutions on slightly dehydrated muscle tissue from a chicken leg, or liver would work. By siging up, I agree to Lanternas InThinking Subject Sites for teachers & their classes, Only teachers can take out free trials or subscriptions to our subject sites at 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. Unit 8, Suite V4Oakville, Ontario,CanadaL6H 1M3. Check out this link for more details, Independent variables: Age of participant/Age + sensory stimuli (how to hearing, seeing and touch-based reaction rates change), Dependent Variables: Time taken to catch ruler between fingers /Time taken to clap when they see light, Challenges: getting enough people to get reliability, controlling variables, Different diseases spread at different rates in different weather conditions depending on how they are passed between organisms (Skin contact, Blood-Blood contact, Cross-species barriers). I'll start first; for my HL Biology IA, I Investigated the effect of varying wavelengths of light on the growth of bacteria; and ended up getting a 21/24 which is equal to a 7 :) Below is a list of 30+ topic ideas for Biology Internal Assessment: Assessment of the effect of temperature on the vitamin C content of various juices What effect can quick shifts in body posture have on baroreceptor feedback and pulse rate? Halophytes grow in Salty conditions whereas normal plants dont. Is it possible to increase brainpower? : Limitations and Improvements should be specified. The internal assessment, worth 20% of the final assessment, consists of one scientific investigation. Along with a bundle of, with helpful examples! Introduction Your Research Question and the Aim of the Investigation are separate sub-headings with different implications. It might seem like a lot of work, but with the right topic in hand, you will go beyond your expectations! Along with a bundle of Past Papers, these premium SL notes include guides for your Extended Essay and Internal Assessments with helpful examples! This sounds like an easy investigation but it is tricky because first there needs to be some biological reason why the heart should speed up in the presence of music and this is impossible to explain with IB Biology.
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