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 . 1678+ Video tutorials, 1226+ PDF IB Resources, 195+ Sample IAs, 148+ EEs, 8777+ Sample questions, 653+ quizzes, IB This is a great idea, but it could be complex and time consuming depending on the lab. To seek where great ideas come from and change the way teachers/students learn in the 21st century. and uncertainties. There are obviously many different factors influencing the rate of ventilation, you can investigate which those are! 9, Do our reaction times slow down with age? We know that our topic has to be somewhat related to the syllabus, but where should we focus? I did one on predator-prey relationships and in the end I modelled two sine graphs. 16. Another difficulty will be to devise a way to measure the extent of fruit ripening, or softness. They are produced in nature by soil bacteria and fungi. Registration confirmation will be emailed to you. Similarly to the experiment on the rate of decay, you can also measure how quickly fruits ripen, and which factors affect this ripening. location on shore. 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. This investigation could be a nice way to combine two standard procedures, one to estimate the rate of respiration in the soil and another to estimate the rate of growth of a plant. location on shore. There are some quite nice online tests of colour vision, and also many telephone apps. Lactobacilli reproduction and growth is the cause of milk spoilage. 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. terms of service. Experimental setup: In this ecological experiment, you will use quadrat sampling to test how successfully different plant species grow in environments. Place all 5 of the red apples into the test tubes (1 piece for each test tube). The internal assessment requirements are the same for biology, chemistry and physics. In addition to that, the IA explores how inhibitor ethanol affects the rate of the reaction. Different abiotic factors affect the growth of different plants, test the different conditions and then note how plant species change in their presence. IB Biology IA Ideas wont strike out of the blue, but heres a list of. The existence of living organisms without cells. The task will have the same assessment criteria for SL and HL. 1, Look at the genetic similarities and differences between species, kingdoms, phylas, classes, genuses, orders, families, and domains. One idea would be to make a series of soils using active compost and sand. Processes such as diffusion and osmosis as well as the effect of chemicals on components of cell membranes, or on enzymes could be included in the theory. Does the behaviour of an animal change as the population increases? Reply Atriplex amnicola) and expose them to increasing increments of independent variables, observing how their transpiration rates change. All rights reserved. Login length need to be from 3 to 40 characters, Password length need to be from 8 to 40 characters. Plants also play a significant role in the environment by influencing climate and producing life-giving oxygen. 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. Toothpaste is supposed to block bacterial growth. You certainly dont want to miss out on these! Posted October 26, 2015. Independent, Dependent variables need to be highlighted, as should the hypothesis. Subscribe and get the latest IB guides, notes,news, tips and product updates. Several university Extension services are now offering easy-to-use websites for those . We hope our list of Internal Assessment Ideas was useful. This is nice project if there is a specific environmental gradient in the site being investigated. Citing documents/web pages and giving references is another important aspect of your IA that needs to be taken care of. The internal. Before we dive more in-depth, you might want to check out our premium IB Biology SL Notes to own your Biology SL papers! 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? The data must be analysed by the student and tables / graphs etc. Sitting in that quiet corner, sipping on hot chocolate hoping it rains IB Biology IA ideas, instead, going blank and utterly confused? 13. The intra-abdominal Campylobacter infection model facilitates the characterization of peripheral blood leukocyte . A 125ml bottle of nutrient agar contains enough to fill about 10 petri dishes. which are specifically designed for self study and revision. Before you can grow bacteria, you'll need to prepare sterile culture dishes. An ideal IA idea is one that reeks of originality and leaves room for proper investigation and analysis in the process. 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. 2.1.2 Salt Doenjang is incubated at different salt concentration, controlled by the amount of sodium chloride dissolved in 100 ml of . Right from neurobiology to the fascinating subjects of the immune system, MyAssignmnethelp.com covers a wide range of biology research topics. 15, Analysing the impact of river pollution on marine life. Many methods are possible, and there has been some very recent research suggesting that antibiotics can affect the growth of seeds and plants.ref P.W. The distinctive features of human physiology. Do individuals of different types all behave in the same way to a stimulus. 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. Experimental setup:In this ecological experiment, you will use quadrat sampling to test how successfully different plant species grow in environments. How does the concentration of zinc chloride affect the growth of plaque? legislation, you have rights in relation to your data. Perhaps another research question will be better, something linked to hormones, or to physical activity. 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. What brand of laundry detergent is the most effective in the digestion and removal of lipid stains? Antibiotics. Which pigments are made first in a growing leaf, or are all the pigments made at the same time? Top 80 Most Common IB Biology Exam Questions. All rights reserved. | Check out some Physics IA ideas here!11, What is the effect of the salt concentration on germination of different types of seeds? The bacteria-infected mice were given PPEF, BPVF, levofloxacin, and ciprofloxacin at different doses (10 and 20 mg/kg bw) by dissolving in sterile water as a vehicle at a volume of 0.1 mL using a . With all the necessary information at your disposal, it is time to present before you some amazing IB Biology IA ideas to encourage you to put your thinking caps on and take on the challenge with newfound zeal! Originally Answered: what are some examples of good biology IA's? However it could be really interesting to compare simple behaviour in animals. What's IB IA Program? Read more about it here. The problem of this investigation is that it is difficult to measure rehydration or salinity. Before we dive more in-depth, you might want to check out our, to own your Biology SL papers! So there we have it! In this investigation a change in a physiological feature is explored. 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? One idea would be to make a series of soils using active compost and sand. Read more about quadrat sampling here, Independent Variable: Soil pH, Nitrates in Soil, Oxygen concentration, Dependent Variable: Presence or absence of certain species. 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. The evolution of parasites. Sometimes sites go ofline or change their address. Challenges: Providing biological context for why youre measuring certain factors. Level of passive aggression in individual sportsmen is found higher. Challenge: Gathering enough data, Pollution affecting species growth. What is the most effective way of fighting an endemic? (Use egg as imitation of tooth). 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. Maybe you can suggest that to your teacher? Studying how different carbohydrates in edibles impact the blood sugar levels in humans. The sure shot way to ace ones IB Biology IA or any IA for that matter is by picking a topic that sparks ones interest. 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. Dependent Variable: Degree of growth of plant towards a light source. Finding a topic is one of the - if not THE - most important part of writing your IA so we want to make sure that you get it right! The work produced by students is assessed internally by the teacher first, and it is then moderated externally by the IB. Get for free what others have paid $100s in tuition How does the pH level of watering solution affect the growth and development of chickpea (Cicer arietinum) and mung bean (Vigna radiata) over a time period of 5 days indicated by the length of the stem measured? | An IB Internal Assessment is an individual assignment assessed by a subject teacher following a given set of criteria to guide, construct, and evaluate the finished assignment. Perhaps the muscles with a greater blood flow will cause a different effect to those in the bodies extremities, and what effect could warming up have on the process? It is important to set the Research Question in the background of the chosen topic. 30 Biology IA topic ideas to get your lab report started! This is a simple experiment to carry out, but a difficult experiment to get good controlled data for. 5 years ago. Subject to the conditions provided for by applicable The IB IAs are an essential part of ones overall subject performance since they make 20% of the final score. The development of biotechnology. investigation should cover a topic that is commensurate with the level of the course of study. There are many possible variations, perhaps the presence of animal excrement could be the causal factor, otherwise some species may be more resistant to scratching and disturbance, caged animals can selectively graze on parts of a lawn, just to mention a few ideas. Be unique and think about how it's interesting to YOU! This might involve the use of a data logger, or perhaps a titration using bromothymol blue. )/ Studying, Dependent variable:Ventilation rate. We look forward to joining the Lanterna and being part of your success. with current laws and regulations, you can unsubscribe at any time by clicking on the link in Ingredients: transparent glass, salt, liquid soap, grapefruit juice, and alcohol (e.g. Probiotic Frozen Yogurt W. Tungrugsasut1*, C. Wiwat2, V. Srisukh1, K. Thoophaew1, and P. Tippawat1. However, keep in mind that even though we are doing our best to maintain this list fresh, other students will find it as well. 1. Take 10 micro liters of the cultured. First is to ensure that there is some biology to explain any hypothesis, and that the RQ is firmly focused in the Biology. Investigating how the concentration of RuBisCo in the leaves of a plant species varies with varied exposure to sunlight. 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. Of course, you can use any of our topics for free. Starting with a process which requires diffusion in living cells will help the topic to be interesting and will show some personal engagement. 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. promotional emails that we send to you. A Selection of Topics for a Biology Essay. Exemplars. The biological functions of water. This investigation tries to establish a pattern between the weather and the spread of a disease. Using LeafLab - plant physiology/photosynthesis to test the effectiveness of different colours of light on the photosynthesis rate of tomato plants. Download our Guide: How to Write a Perfect Biology IA (Click Here), If youre interested in getting additional support for your Biology IA, we have a team of expert IB Biology tutors that can help you plan, structure and execute your assignment. Brian and also Louis G. Nickell and Alexander C. Finlay in the Journal of agricultural and Food chemistry, 2015. Neither should the idea be too generic and nor too simplistic. How does the percentage of salinity in water affect the rate of growth of radishes in mass? Click here to reset it. Click here (amylase) or Click here ( pancreatin amylase) from Carolina. , its objectives, partwise breakdown, and what IB expects of you. 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 :) This was my Biology HL IA which was given a 21/24 by the IB. Selecting an IBxq Biology IA idea has never been easier! Also, be sure that you know all of the rules and regulations for your particular science fair before you begin your project. Experimental Setup:Create different environments for vegetables to decay in and measure the decay over a fixed period. 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. Pour the bacteria onto the solidified agar plate. 17. Remember any participants will need to give written consent before any experimenting, and the mild stress of exam conditions must be harmless. . About us If the algae is green, then the maxima should be over in . 24. It is very easy to extract DNA at home just using everyday kitchen supplies. Copyright 2023 Get the grade you deserve. You certainly dont want to miss out on these! Observe how changing the colour of the light source impacts the success of phototropism! Pease comment on broken links and suggest alternative ideas in the comments. Look at the genetic similarities and differences between species, kingdoms, phylas, classes, genuses, orders, families, and domains. Give us the email address you use to log in to Lanterna and well send you instructions for resetting your password. newsletters and promotional offers. Biological explanations could look at the way we grow, and if the brain changes size at the same rate as the lungs. Change the different conditions in which the plants are found as well as the species. Teens can work to find out why certain plants present certain colors. Extract your own DNA. 29, Determining the effect of time on the plasmolysis of potatoes, 30, Exploring mollusc shapes with regards to an external variable e.g. For your privacy and protection, when applying to a job online, never give your social security number to a prospective employer, provide credit card or bank account information, or perform any sort of monetary transaction. Selecting an IBxq Biology IA idea has never been easier! classes to learn/preach! There are biology topics that can be connected to culture, music, language, and the like. Population growth curves. Starting at deep purple, and ending at far red, write down the A values. Legal How does different concentrations of Gibberellic acid affect the germination of a dolly Parton rose? It is known that you should have at least 25 samples of data for your Biology IA, but let us explain why. Photo. There may be a combination of roles for plant roots and bacteria in the substrate and both of these link to the nitrogen cycle and so would allow for a detailed hypothesis and a focused research question. Independent Variable: Temperature, Salts, Humidity, Oxygen availability, Dependent Variable: Rate of Decay measured by pH, mass or temperature change. I'll do so in a series of questions that will help you probe deeper into your IA. Stir these together well: -teaspoon agar (1 1/5 grams) Investigate the influence of Ph levels in the soil on the development of the Lepidium avitum 2) How does the concentration of potassium chloride affect the growth of Lepidium savitum. Alcohol kills bacteria by first making the lipids, which contribute to the outer protective cell membrane, more soluble in water so that the cell membrane begins to lose its structural integrity. By siging up, I agree to Lanternas Perform the relevant analysis, keeping in mind the research question, and conclude. Investigate how different species of plants respond differently to environmental stimuli. What has inspired you to do that topic? Other possibilities are paper simulations, e.g. Can the max performance be measured best using max heart rate or maximum speed? Biology HL IA Idea Proposal - Bacteria vs Fertilizer Course Biology HL Institution Queensland Academy Of Science, Mathematics And Technology This is a detailed proposal for a HL Biology IA complete with a full methodology, research question, and basic Introduction. Reference to Course: Molecular Biology(Enzymes). We use cookies to ensure that we give you the best experience on our website. The climate is different at different altitudes and the growing season begins later at high altitude. Finding how the respiration rates of bakers yeast and lager and wine yeast in various sugar solutions compare. I investigated the change in mitotic index that occurred in onion root tips when they germinated in solutions of differing K+ ion concentration. On this note, we wish you all the very best for your IB Biology IA Journey :). What are you waiting for? Introduction This investigation might sound simple at a first glance but there are many difficulties to overcome in terms of controlled variables and the method of measuring the CO2. Are you looking for some IB Biology Internal Assessment (IA) ideas? IB Acronym Glossary - Please help IB Community :) IA Advice & Ideas; Help! The best investigations will have a biological reason why there might be a correlation between the IV and the DV. Investigating how tuberculosis's Incidence is related to a countrys Human Development Index(HDI) level. LinkedIn, IBDP Maths: Applications & Interpretation, Changes in the Biology Guide for 2025 exams, Video introduction to Learning activities, Distance learning using InThinking Biology, Setting written tasks using pdf worksheets, Teacher activity - Mastering student access, The origin of cells and cell division 1.5 + 1.6, Molecular biology: Activities for Learning, Molecules to metabolism - planning sheet 2.1, Carbohydrates and Lipids - planning sheet 2.3, Structure of DNA and RNA - planning sheet 2.6, Hairy Hands - genetics of mid-digital hair, Genetic modification - planning sheet 3.5, Species & communities - Planning sheet 4.1, Classification of biodiversity - planning 5.3, Reclassification of figworts using cladistics, Emergency room activity - enzyme inhibition, Electron transport chain - revision games, HL Plant Biology - Activities for Learning, Reproduction in plants - planning sheet 9.4, HL Animal Physiology Activities for Learning, Antibody & vaccination - planning sheet 11.1, Sexual Reproduction - 11.4 planning sheet, Option A - Neurobiology - Activities for learning, Neuropharmacology HL - planning sheet A.5, Option B - Biotechnology and bioinformatics, Organisms in industry Topic - Planning sheet B1, Batch fermentation and continuous culture, Biotechnology in agriculture - planning sheet B2, Cryptic messages - bioinformatics introduction, Environmental protection - planning sheet B3, Option C - Ecology Activities for learning, Species & communities - planning sheet C1, Communities & Ecosystems - planning sheet C2, Conservation of biodiversity - planning sheet C4, Option D - Human physiology Activities for learning, Respiratory gases - planning sheet HL D.6, Individual investigation - skills introduction, IA avoiding common errors - model answers, IA Experiments that could be done at home, Investigating strawberries with a glucose test meter. There are lots of practical problems to overcome, most importantly how to change the soil so that it has different amounts of respiration. 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 . While these organisms inhibit the growth of many pathogenic bacteria and are also inten- tionally employed to ferment milk to make other dairy products such as yogurt and cheese, they can also induce Some assessment of the reliability of the sources will be needed and some discussion of ethics of using someone's data, with their consent, hopefully. How does stomatal density change according light exposure of red and blue light? You have to show that the data has been carefully selected, and that measures have been taken to ensure that other factors which might affect the data have been controlled, by careful selection of the data used. Stuck for Ideas planning your Biology IA? In this post, we outline the different necessary components. Remember that these samples are meant to give direction and ideas. A quart-sized bowl works great. 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. Pour 250 ml hydrogen peroxide of 3% concentration into the 300 ml glass beaker. Still feeling a bit uneasy about the task ahead? Kimchi is a traditional fermented cabbage dish from Korea. How do different concentrations of lactases affect the breakdown of disaccharides like lactose in milk effectively? Clearly state your interest. 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. To help you find your own topic among interesting biology research topics, we prepared some useful tips to follow. Preview 1 out of 13 pages Homemade extraction of your own DNA. 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. The external assessment of biology consists of three written papers. 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 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. Every year the examiners' report mentions problematic Investigations, those which are unethical, or standard labs which are not applied to any specific interest. We are available: Mon-Fri 9am-7pm CESTSat 10-5pm CESTSun 12-5pm CEST. Within each topic listed below, we include the basic reasons for investigating each topic, what the possible independent variables and dependent variables are as well as the basic experimental setup! This is a bit more complex than a simple pulse rate investigation, but the challenge to control variables is equally great. Compost is made from dead plants and manure is the waste from animals. Experimental setup:Use a potometer to measure the rate of transpiration. These microbes assault the nourishment scraps that stick to, and in the middle of our 2 teeth.