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. Experimental Setup: Focus on how leaves in different conditions vary in their stomatal density. IA Advice & Ideas; Help! All rights reserved. Selecting an IBxq Biology IA idea has never been easier! The first step consists of spitting on the glass and adding a pinch of salt to it. To make matters worse, on top of just doing the dreaded maths exam, were also expected to write a Maths IA exploration into a topic of our choice! This is an interesting topic of investigation which relates to osmosis and ecology. This is nice project if there is a specific environmental gradient in the site being investigated. Click here (amylase) or Click here ( pancreatin amylase) from Carolina. It is imperative to acknowledge the safety protocols as established by IB and consider the ethical aspects of your investigation. This is a standard lab and the challenge will be to ensure that it is put into an interesting biological context. disinfectant, rum, vodka, etc.). Use it to spread the bacteria across the surface of the Petri dish while rotating it. These Biology IA Ideas Will Help You Get A High Grade In Your Biology IA. Subscribe and get the latest IB guides, notes,news, tips and product updates. Exploring how the height of plants is affected by Nitrogen or Fluoride based fertilizers used. Look at the genetic similarities and differences between species, kingdoms, phylas, classes, genuses, orders, families, and domains. Some of the challenges of this type of investigation will be controlling other factors which affect the growth of plants. 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. This is interesting because the higher concentrations will cause outward osmosis in the yeast and perhaps slow down respiration, or even kill the yeast. To make the experiment more detailed, students can rub collected samples on filter paper to observe which plants present which colors. Test the stomatal density of different leaves exposed to variable conditions using a microscope. Different abiotic factors affect the growth of different plants, test the different conditions and then note how plant species change in their presence. 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 . This creates fermented products. This investigation relies on the recording of abiotic data and data about the stage of the flowering cycle using the number of flowers / fruit / buds etc in a single species at different altitudes up a mountain. Constraints, if any, need to be mentioned as well. Narrow down the subject. Profile. 2, Testing global warming: How does CO2, water vapour, oxygen, or any other variable affect temperature inside a cutoff bottle exposed to simulated sunlight? Therefore, 5 trials with 5 samples each make up 25 samples in total. Halophytes and Xerophytes have different adaptations to control transpiration rates, how do they each respond to temperature changes? Homemade extraction of your own DNA. How does extract of the seeds and the leaves of the moringa plant (herbal medicine) show antifungal activity against the Malassezia yeast (Pittosporum) fungi that causes dandruff? The internal assessment requirements are the same for biology, chemistry and physics. This is a nice idea for an investigation into the number of species found in a garden in houses where there are pets and no pets. Reference to Course: Molecular Biology(Enzymes). Browse these for more information! The importance of agricultural microbiology. This looks like an interesting topic of study. 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. Then is is going to be a challenge to design a method of data collection which controls all the possible variables. This is a simple experiment to carry out, but a difficult experiment to get good controlled data for. Pour 250 ml hydrogen peroxide of 3% concentration into the 300 ml glass beaker. In addition to that, the IA explores how inhibitor ethanol affects the rate of the reaction. Avoid any investigation where you are getting friends to drink Gatorade and measuring some unrelated but easy to measure factor, like pulse rate. The choice of physiological features of the body could include heart rate, or pupil size, or skin redness. newsletters and promotional offers. 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. 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. tillu22. Perform the relevant analysis, keeping in mind the research question, and conclude. A clear RQ is essential and there are quite a few possibilities. Measuring the energy content of a packet of Cheetos 30 IB Biology IA Topic Ideas 1. Stir these together well: -teaspoon agar (1 1/5 grams) http://globalhealthgovernance.org/blog/2017/12/1/how-to-find-data-on-infectious-disease-outbreaks, Heres a useful link for ventilation rates. Some plants grow well in coastal soils with igh salt concentrations but others don't. Selecting an IBxq Biology IA idea has never been easier! IB Elite Academy online tutors provides hundreds of IB Biology IA ideas at both IB Biology higher level, IB Biology standard level. The practical methods to germinate seeds and select appropriate salt concentrations will present definite challenges but this is an interesting study for students living near the coast, or in places where salt is applied to the roads in winter. Teens can work to find out why certain plants present certain colors. Read more here, Dependent Variable: Rate of transpiration (measure with a Potometer), Challenges: Getting the plants, Setting up a Potometer. 1. The video breaks down the c. 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! 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 . 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? Practical procedures and controls will be the challenge, but data should be easy to record if the seedlings grow. Still feeling a bit uneasy about the task ahead? IB Biology IA: Enzymes Institution GEMS World Academy Level 7 IA (22/25 points) conducted on topic 2.5 (enzymes). 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. Different plants that live in different conditions will have different requirements for gas exchange. 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? Take 10 micro liters of the cultured. This begs the question, is there an ideal concentration of sucrose for yeast growth? About us Thankfully, weve asked some of our favourite IB graduates for some of the ideas they pursued! Check out some Physics IA ideas here!11, What is the effect of the salt concentration on germination of different types of seeds? Investigating muscle activity involved when standing on ones toes(Ballet dancers). 17, What is the effect of pests on the diversity of plants in a lawn? Clearly state your interest. Understanding some basic biology and the processes of plant breeding can help individuals understand GMOs and their safety. HL Psychology or HL History? classes to learn/preach! We have a team of awesome tutors ready to help you ace the IB. Using the pipette dropper to suck in 10 ml of the 3% hydrogen peroxide . They are the foundation of food chains in almost every ecosystem. . The procedure used should be well structured. 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. Exemplars. 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. This is a list of possible sites for students to use as online labs. 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. Another difficulty will be to devise a way to measure the extent of fruit ripening, or softness. I got a 7 for Biology HL and my IA was awarded a 22/24. The work produced by students is assessed internally by the teacher first, and it is then moderated externally by the IB. Decomposing bacteria and fungi are organisms that help the process of decomposition. 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. If there are any ethical implications to your report, how do you plan on minimizing the environmental impact of your experiment?. The internal assessment requirements are the same for biology, chemistry and physics. 15, Analysing the impact of river pollution on marine life. Using paper chromatography to analyse the various dyes present in different brands of jelly candy. 29, Determining the effect of time on the plasmolysis of potatoes, 30, Exploring mollusc shapes with regards to an external variable e.g. 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? Personal engagement, Exploration, Analysis, Evaluation, and Communication are the criteria against which the investigation is assessed. Heres a useful link for ventilation rates. For this experiment, youll investigate how different variables affect the rate of decay! which are specifically designed for self study and revision. http://www.xrite.com/online-color-test-challenge. 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! How effective are synthetic antibacterial products compared to natural antibacterial products against the growth of Cut bacterium acnes? 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. Experimental setup:Place a corn seed in a dark cupboard with a single light source. 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. 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 . Increasing sucrose concentration makes more sugar available for Cell Respiration but it also draws water out of yeast by osmosis, which could kill it. assessment, worth 20% of the final assessment, consists of one scientific investigation. Of course the ideas are just ideas, nothing is specified and all the details will need to be explored and evaluated by students during their investigations. How does the concentration of zinc chloride affect the growth of plaque? 2. Keep the research question brief and relevant. Enter your email and tell us where to send them! 12, What happens after the best-by date of dairy products? The will (hopefully) impact the success of germination. Your Research Question and the Aim of the Investigation are separate sub-headings with different implications. 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. Are you looking for some IB Biology Internal Assessment (IA) ideas? It is important to set the Research Question in the background of the chosen topic. Stomata are the areas of gas exchange in leaves. HL Biology IA Help! I'll do so in a series of questions that will help you probe deeper into your IA. Starting at deep purple, and ending at far red, write down the A values. 9, Do our reaction times slow down with age? This might involve the use of a data logger, or perhaps a titration using bromothymol blue. Auxin hormone is largely responsible for controlling the direction of plant growth. For strict autotrophic organisms - Only inorganic compounds. Biological explanations could look at the way we grow, and if the brain changes size at the same rate as the lungs. Choosing the perfect IB Biology IA idea is only the first step in making ones IB Biology Investigation, but definitely, the most significant. the Lots of scope but not an easy investigation to complete in the time, in 12 pages. How does a sudden and intensive workout affect the heart rate, and to what extent does warm up have an impact on the maximum heart rate? There are also many factors to consider in the type of reaction speed test that is used and there are also problems associated with the learning of the skill during the experiment. This could be a difficult investigation to do quantitatively unless there was a longer time period available to observe growth. If some abiotic factors can also be recorded including the pollution level, eg nitrate level, BOD, turbidity etc. Then, add some liquid soap (like the one you use for washing the dishes), juice from a grapefruit, and . Dependent Variable: Ethylene levels, CO2 production, qualitative assessment. investigation should cover a topic that is commensurate with the level of the course of study. http://www.xrite.com/online-color-test-challenge. You certainly dont want to miss out on these! There are biology topics that can be connected to culture, music, language, and the like. Don't do it! Browse thousands of Internal Assessment, Extended Essay, and TOK examples. Some preparation time will be required to germinate and plant the seeds. Measuring the change in iron levels of avocados as they go through different ripening stages 25. Plot this data with A on the Y-Axis and wavelength in nm on the X-axis. It is a complex branch of biology that studies the smallest units and the living organisms. 17. We use cookies to ensure that we give you the best experience on our website. Photo. The IB IAs are an essential part of ones overall subject performance since they make 20% of the final score. Experimental setup:Gather participants for the study and compare how quickly they can catch a ruler (measured in cm). Below you will find science fair project ideas primarily related to biology. Several university Extension services are now offering easy-to-use websites for those . 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. In this post, we give you 50 IB Biology IA Ideas to help you speed up your research process. So there we have it! Lost your password? Another simple biology experiment involves going into your natural environment, such as a local park, to observe diversity among plant samples. IA Overview. Student work is internally assessed by the teacher and externally moderated by the IB. The different pH levels are pH 1, 3, 5, 7, 11, and 14. Paper 2 contains short-answer and extended-response questions on the core (and Additional Higher Level (AHL) material . What brand of laundry detergent is the most effective in the digestion and removal of lipid stains? Similarly to the experiment on the rate of decay, you can also measure how quickly fruits ripen, and which factors affect this ripening. Copyright 2023 Nail IB. 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. cactus) and a halophyte (eg. IB Biology IA, EE on enzymes kinetics amylase using Visible spectrophotometer EE and IA on enzyme study is safe, easy and doable for IB students Starch digestion using Amylase Source for amylase from bacteria, malt or salivary amylase. Experimental Setup:Create different environments for vegetables to decay in and measure the decay over a fixed period. Challenge: Gathering enough data, Pollution affecting species growth. 2.1.2 Salt Doenjang is incubated at different salt concentration, controlled by the amount of sodium chloride dissolved in 100 ml of . Learn everything you need to get a 7 in your IB subjects with our online courses. Maybe you can suggest that to your teacher? Read more about it here. Download our 2022 Biology IA Guide (Checklist) to help write the perfect Internal Assessment. Kimchi is a traditional fermented cabbage dish from Korea. What is the most effective way of fighting an endemic? 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. 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: Either way, you have to connect to your topic and portray personal engagement as it lays the foundation for the rest of your investigation. IB Biology IA, Hydrolysis of starch using enzyme amylase 1st Method (SL) using white tile and stop watch How changing Temp/Salt conc Ventilation rate is a measure of how quickly you breathe. This is an interesting study and it links to the role of auxin as well as photosynthesis so there is theory to discuss. How would changing (storage) temperatures affect the rate of change of pH of different types of milk due to spoilage? Atriplex amnicola) and expose them to increasing increments of independent variables, observing how their transpiration rates change. IB Biology IA Ideas wont strike out of the blue, but heres a list of. These ideas are for you to start exploring and begin! 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 Independent Variable: Light exposure, Different Species, Atmospheric CO2 concentration, Dependent Variable: Stomatal density (seen under the microscope). There could be some biology theory applied to the plants leaves, or roots. Compost is made from dead plants and manure is the waste from animals. The 80 Most Common IB Biology Exam Questions! 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. Place the bottle in hot water at 170-190 F until all of the agar is liquid. Passion is fundamental in research, after all. Controlling factors which can affect blood pressure could be an investigation in itself! Understanding how a particular abiotic factor affects the biodiversity in a habitat. The individual. How do detergents, drinks, yogurt, and milk stack up when it comes to buffering? It will be useful for students who are lost for an idea, or teachers who are looking for something to inspire a particular student. This is a bit more complex than a simple pulse rate investigation, but the challenge to control variables is equally great. 4, How does varying the gel concentrations of agarose affect DNA migration through a gel? (16 More IB Resources), See with current laws and regulations, you can unsubscribe at any time by clicking on the link in 28, How do different antibiotics interact with the process of seed germination? 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! 8, How do the buffering actions of milk, yogurt, juices, detergents etc. The IB IAs are an essential part of ones overall subject performance since they make 20% of the final score. How do cleaning products affect the growth of house plants? IA is one that has been undertaken with complete zeal and enthusiasm. Does the behaviour of an animal change as the population increases? Background Information: There are a lot of microscopic organisms and other miniaturized scale creatures living in our mouth. 15. using potassium permanganate and heating, from a protocol from Science & plants for schools. The stages of embryonic development. . Be unique and think about how it's interesting to YOU! Observe how changing the colour of the light source impacts the success of phototropism! Sometimes sites go ofline or change their address. If you insist on trying this then be sure to cover the control of variables, there are a lot which can affect the heart. To make things as simple as possible for you, we've put together a list of biology research project ideas. 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. Student work is internally assessed by the teacher and externally moderated by the IB. 18, What is the effect of isotonic drinks on rehydration and recovery after exercise? Grab ideas, see examples and create own perfect Biology essay and research paper! This would be a challenge and it would require some research before beginning. www.thinkib.net. 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. Where do you even begin such a task? 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 could be compared to listening to music where research has been done to establish that pulse rate can be affected by music. Registration confirmation will be emailed to you. NOTES: Probiotics eat the lactose in milk through fermentation. HL Biology IA Help! The Internal Assessment can be a daunting task, for many students this will be the first time you're tackling such an assignment. This can become interesting because you can test how different conditions affect milks spoilage, Experimental setup:In this experiment, you can compare milk spoilage. Exploring root hair cells and finding their visibility with age. However, keep in mind that even though we are doing our best to maintain this list fresh, other students will find it as well. At lower pH levels of 4.0 - 5.0, lactic acid bacteria can grow and pro- duce lactic acid. 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. 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. Probiotic Frozen Yogurt W. Tungrugsasut1*, C. Wiwat2, V. Srisukh1, K. Thoophaew1, and P. Tippawat1. How does different concentrations of Gibberellic acid affect the germination of a dolly Parton rose? Independent Variable: Age, Tiredness, Gender, Eye Colour. IB Acronym Glossary - Please help IB Community :) (1 More IB Past Papers). 1. | 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 12 Investigation ideas with a biological twist. It could be used in a wide range of labs. 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. IA investigation - teacher's marking activity, Metabolism Respn & Photosynthesis test HL, Metabolism Respn. Unit 8, Suite V4Oakville, Ontario,CanadaL6H 1M3. Toothpaste is labelled according to how natural or how chemical the contents are. At SL and HL levels, the performance is rated concerning a defined assessment criterion which is marked out of the score of 24. The focus is on the parts of the cell and the interaction of the cytoplasm and the membrane as the topic ideas below show: The Pros And Cons Of The Cytoskeleton System Through The Lens Of Cell Motility. Browse. Alcohol is a common active ingredient in many of the commercial mouth washes. What effect does temperature have on the ripening process of a fruit?. opening the floodgates to that sweet 45! 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 biological explanation of why blood pressure might change when reading may be tenuous. Lower concentrations will slow respiration because of a lack of substrate. 7, How do the respiration rates of bakers yeast and wine yeast in various sugar solutions compare? test HL - mark scheme, Animal physiology - test HL - mark scheme, Topic 2 - Molecular biology revision activities, Topic 3 - Genetics SL revision activities, Topic 5 - Evolution SL revision activities, Topic 6 - human physiology SL revision activities, Topic 7 - Nucleic acids HL revision activities, Topic 8 - Metabolism HL revision activities, Topic 9 - Plant biology HL revision activities, Topic 10 - Genetics HL Revision activities, Topic 11 - Physiology HL Revision activities, Option A - Neurobiology - Revision activities, Option D - Human Physiology Revision activities, Membrane structure & function quiz 1.3 & 1.4, DNA replication, transcription, translation quiz 2.7, Evolution - natural selection quiz 5.1 & 5.2, Humans - digestion and absorption workout, IA investigation - teachers marks summary, Extended Essay titles and research questions, Extended essay - self review quiz for students, EE supervisor roles - during the writing process, EE supervisor roles - feedback on a draft. Independent Variable: Halophyte seed vs Normal Plant seed. The analysis of the results and the design of the method is another place where PE can be demonstrated, try to take the standard lab and adapt it so show something which is not 'standard'. Math solutions -. It is very easy to extract DNA at home just using everyday kitchen supplies. Access them all! Experimental setup: For this experiment, combine a fixed mass of yeast with increasing concentrations of a sucrose solution and measure the rate of CO2 production! Many say that as we get older, our reaction times slow down, see if this is true! Heres a link to a scientific article that did something very similar, copy their method.