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. 16. 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. 3. . The effect of techniques used to preserve milk on its ability to support the growth of probiotic bacteria. 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. The difficulty begins with identifying the genres in a scientific way. IB Elite Academy online tutors provides hundreds of IB Biology IA ideas at both IB Biology higher level, IB Biology standard level. I did one on predator-prey relationships and in the end I modelled two sine graphs. Lost your password? Several university Extension services are now offering easy-to-use websites for those . 6 years ago. For this experiment, youll investigate how different variables affect the rate of decay! 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. 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. Dependent Variable: Ethylene levels, CO2 production, qualitative assessment. Read more here, Dependent Variable: Rate of transpiration (measure with a Potometer), Challenges: Getting the plants, Setting up a Potometer. Comparing the buffering actions of various substances: antacids, milk, sodium bicarbonate, sodium carbonate, detergents, etc. 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. Weaknesses like using high uncertainty apparatus should be addressed in the evaluation. Some diseases spread through direct contact, others are transmitted by an insect vector. The use of a transect of transects will be useful for the sampling. IB Biology IA: Enzymes Institution GEMS World Academy Level 7 IA (22/25 points) conducted on topic 2.5 (enzymes). It is imperative to acknowledge the safety protocols as established by IB and consider the ethical aspects of your investigation. To get started, you'll need to make your agar and fill some petri dishes. As the cell membrane disintegrates, alcohol can then enter the cell and . 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 . Understanding how a particular abiotic factor affects the biodiversity in a habitat. Starting at deep purple, and ending at far red, write down the A values. How do natural antiseptics (ginger and turmeric) compare with commercial antiseptics in the inhibition of growth of e. coli bacteria? 5 years ago. About us Are you looking for some IB Biology Internal Assessment (IA) ideas? This might involve the use of a data logger, or perhaps a titration using bromothymol blue. 8, How do the buffering actions of milk, yogurt, juices, detergents etc. 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. Follow the steps here to extract the DNA. Some of the challenges of this type of investigation will be controlling other factors which affect the growth of plants. The development of biotechnology. IA Overview. What effect do conditions, such as temperature, sunlight have on the rate of spoilage. How does the shade of a leaf relate to the composition of photosynthetic pigments it contains? They know exactly how to get a 7 in your IA and exam and can give you tips and tricks on how you can do the same. Remember! Use a clean, microwave-safe container to mix the agar with water and then boil it. The effect of pets on the diversity of plants in a garden lawn. Before we dive more in-depth, you might want to check out our premium IB Biology SL Notes to own your Biology SL papers! Independent Variable: Age, Tiredness, Gender, Eye Colour. Internal Assessments are the perfect way to get students to put their knowledge to use by Observing, Questioning, and Investigating. After use of the cell phone, bacterial contamination of the physicians" hands was found in 38 out of 40 cases.In this experiment of prokaryotes students take samples from their mobiles phones and grow prokaryote colonies on agar plates. Experimental setup: In this ecological experiment, you will use quadrat sampling to test how successfully different plant species grow in environments. There needs to be some clear links to the biology of blood pressure and how exercise affects it. Challenges: Being consistent in assessing the fruit ripeness. 24. 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. This study could be an investigation of how effectively the toothpaste inhibits the growth of bacteria according to the scale of the chemicals in the toothbrush. 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. The biological explanation of why blood pressure might change when reading may be tenuous. 15. 3. 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! IA Biology HL 6 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? Biological explanations could look at the way we grow, and if the brain changes size at the same rate as the lungs. Lactobacilli reproduction and growth is the cause of milk spoilage. It may even be possible to find a database of measurements of children of different ages. Exemplars. This is nice project if there is a specific environmental gradient in the site being investigated. This would be a challenge and it would require some research before beginning. 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. We use cookies to ensure that we give you the best experience on our website. Test how different household cleaning products affect seed germination! 12 Investigation ideas with a biological twist. How do different kinds of toothpaste compare? Vegetables decay over time but how can we slow down the process? This FREE guide reveals the most powerful information for boosting your extended essay score and 10, Can we slow down the decaying times of vegetables? Read more about it here. For strict autotrophic organisms - Only inorganic compounds. They cause our teeth to rot, shaping plaque and causing awful breath. 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. Dependent Variable: Rate of Seed Germination. To help you find your own topic among interesting biology research topics, we prepared some useful tips to follow. Keep the research question brief and relevant. Maybe you can suggest that to your teacher? IA Review. The evolution of parasites. Dont worry, weve all been there. Posted October 26, 2015. HL Psychology or HL History? Plants also play a significant role in the environment by influencing climate and producing life-giving oxygen. Or find the correlation between the height of one's parents and their own height, then make predictions based on your findings. This is a bit more complex than a simple pulse rate investigation, but the challenge to control variables is equally great. How does the acidity of different beverages affect the deterioration of tooth enamel? This is an interesting study and it links to the role of auxin as well as photosynthesis so there is theory to discuss. Investigating how the concentration of RuBisCo in the leaves of a plant species varies with varied exposure to sunlight. 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. 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 A challenge is to work out the biological reasons behind you hypothesis, and it may be a good idea to branch away from toothpaste to test a specific chemical from the ingredients in the toothpaste. Look no further; at Nail IB, we have assembled premium content for you to ace your IBs, and you might want to check out our resources for a smooth IB experience. We know that our topic has to be somewhat related to the syllabus, but where should we focus? Facebook SIENE IA UIDE 8 info@lanternaeducation.com 23. location on shore. IA Advice & Ideas; Help! If you continue to use this site we will assume that you are happy with it. What has inspired you to do that topic? Antibiotics. Exploring how the reaction times of humans get affected with age. Some independent variables will be easier to test than others, for example size of text and distance wt which it can be read, would be better than measuring reading speed which can be affected by many other variables. We have a team of awesome tutors ready to help you ace the IB. When looking for information, be sure to seek information from institutions and agencies that share science-based, objective results. 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? Can temperature, humidity, or exposure to sunlight affect how quickly vegetables decay? Which pigments are made first in a growing leaf, or are all the pigments made at the same time? there Skip to document Ask an Expert Sign inRegister Sign inRegister Home Ask an ExpertNew Dependent Variable: Respiration Rate (measure with respirometer or gas probe detecting CO2 formation. Copyright 2023 Nail IB. What effect does temperature have on the ripening process of a fruit?. You can extract your own DNA from your saliva, or you can use any fruit or vegetable you can find at home bananas and strawberries are some of the most popular at science fairs. Don't do it! Experimental Setup:Grow germinating seed in environments with different types of diluted antibiotics, see how many succeed in each environment. IB Biology IA topics: Biology being a scientific course encompasses a lot of investigation and research. Experimental setup:Find a xerophyte (eg. By testing people of different ages to see if there is a difference in their reaction time it may seem like a simple study, but there are a lot of factors which need to be controlled and it will be difficult to find enough participants to create a large enough data set. Click, See Clearly state your interest. 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 inspire and stimulate your grey cells! Then is is going to be a challenge to design a method of data collection which controls all the possible variables. How do halophyte seeds respond to increasing salt concentrations compared to normal seeds? In order to do well in any science IA, you need to fulfil the criteria i.e. How do cleaning products affect the growth of house plants? 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. [], or you can call us here at: +44 20 4571 0455. 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. 29, Determining the effect of time on the plasmolysis of potatoes, 30, Exploring mollusc shapes with regards to an external variable e.g. Studying the effect of enzymes on Cheese production. Before we dive more in-depth, you might want to check out our, to own your Biology SL papers! What is the most effective way of fighting an endemic? 2. The internal assessment requirements are the same for biology, chemistry and physics. Be unique and think about how it's interesting to YOU! 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. Perhaps some form of experiment using isotonic solutions on slightly dehydrated muscle tissue from a chicken leg, or liver would work. It is known that you should have at least 25 samples of data for your Biology IA, but let us explain why. The IA explored what affect does Enzyme Trypsin has on protein Casein which is contained in milk. 3. . IBDP Biology InThinkingSubject Sites for teachers & their classes Still feeling a bit uneasy about the task ahead? 15, Analysing the impact of river pollution on marine life. The task will have the same assessment criteria for SL and HL. Toothpaste is labelled according to how natural or how chemical the contents are. It might seem like a lot of work, but with the right topic in hand, you will go beyond your expectations! The best investigations will have a biological reason why there might be a correlation between the IV and the DV. Preview 1 out of 13 pages Using LeafLab - plant physiology/photosynthesis to test the effectiveness of different colours of light on the photosynthesis rate of tomato plants. CareerBuilder TIP. How does the percentage of salinity in water affect the rate of growth of radishes in mass? 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. Avoid this type of investigation, . should include all the normal conventions of d.p. Investigate how different species of plants respond differently to environmental stimuli. The Internal Assessment can be a daunting task, for many students this will be the first time you're tackling such an assignment. What brand of laundry detergent is the most effective in the digestion and removal of lipid stains? The performance in internal assessment at both SL and HL is marked against common assessment criteria, with a total mark out of 24. Bananas lend themselves to this because their skin changes colour. Selecting an IBxq Biology IA idea has never been easier! Along with a bundle of, with helpful examples! 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 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. Practical procedures and controls will be the challenge, but data should be easy to record if the seedlings grow. How does different sodium chloride concentrations affect seed germination in the bougainvillea plant? 12, What happens after the best-by date of dairy products? disinfectant, rum, vodka, etc.). Stuck for Ideas planning your Biology IA? 18, What is the effect of isotonic drinks on rehydration and recovery after exercise? Using the pipette dropper to suck in 10 ml of the 3% hydrogen peroxide . This is interesting because the higher concentrations will cause outward osmosis in the yeast and perhaps slow down respiration, or even kill the yeast. Comparing boys and girls for example will be impossible, unless the sample size is very large. Experimental setup:Follow this link to find out more about colour blindness and how to investigate it. Before you can grow bacteria, you'll need to prepare sterile culture dishes. 28, How do different antibiotics interact with the process of seed germination? 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. 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. Thankfully, weve asked some of our favourite IB graduates for some of the ideas they pursued! 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. You certainly dont want to miss out on these! 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! If youre struggling with the Paper 2 Data Based Questions, we also have a post about that here. NOTES: Probiotics eat the lactose in milk through fermentation. Internal assessments make up for 20% of the grade and are all about scientific writing and research. Take inspiration from these and research further to land on that one idea that gets you going! Another simple biology experiment involves going into your natural environment, such as a local park, to observe diversity among plant samples. Independent Variable: Different household cleaning products/increasing concentrations of cleaning product. 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? 3.2 The More Data, The Better. 4, How does varying the gel concentrations of agarose affect DNA migration through a gel? The IB IAs are an essential part of ones overall subject performance since they make 20% of the final score. 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 Auxin hormone is largely responsible for controlling the direction of plant growth. In accordance How does different concentrations of Gibberellic acid affect the germination of a dolly Parton rose? They investigate the hypothesis that. All rights reserved. Heres a useful link for ventilation rates. However it could be really interesting to compare simple behaviour in animals. Photo. Email length need to be from 5 to 40 characters, Password length need to be from 5 to 40 characters. Halophytes grow in Salty conditions whereas normal plants dont. Independent, Dependent variables need to be highlighted, as should the hypothesis. Experimental setup:In this experiment, you will expose seeds in a germinating environment to different household products solutions at increasing concentrations. Constraints, if any, need to be mentioned as well. 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. So there we have it! are the criteria against which the investigation is assessed. promotional emails that we send to you. Help us improve CareerBuilder by providing feedback about this job: Report this job Job ID: 9096_4208814345. I'll do so in a series of questions that will help you probe deeper into your IA. An ideal IA idea is one that reeks of originality and leaves room for proper investigation and analysis in the process. There are some ethical questions involved too, and parental consent will be essential for any experiments on children. Hurry, this offer ends on January 17th! 30 Biology IA topic ideas to get your lab report started! The role of a warm up in sport is clear. Along with a bundle of Past Papers, these premium SL notes include guides for your Extended Essay and Internal Assessments with helpful examples! This is an interesting topic of investigation which relates to osmosis and ecology. 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. Want some A-quality guidance? It could be used in a wide range of labs. The internal assessment, worth 20% of the final assessment, consists of one scientific investigation. HL Biology IA Help! Student work is internally assessed by the teacher and externally moderated by the IB. Look at the genetic similarities and differences between species, kingdoms, phylas, classes, genuses, orders, families, and domains. At Lanterna we have hundreds of tutors who smashed Biology. 17. 9, Do our reaction times slow down with age? This is a standard lab and the challenge will be to ensure that it is put into an interesting biological context. Do individuals of different types all behave in the same way to a stimulus. Experimental setup:Follow this link to for more information of modelling! 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. You. Similarly to the experiment on the rate of decay, you can also measure how quickly fruits ripen, and which factors affect this ripening. 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. To find out more, see our. 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. These ideas are meant to give you a little head start along this path; your final IB Biology Investigation idea is your interpretation of one. At SL and HL levels, the performance is rated concerning a defined assessment criterion which is marked out of the score of 24. Citing documents/web pages and giving references is another important aspect of your IA that needs to be taken care of. Let's help inspire M22 students since it's already IA season! 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 :) Click here for top-notch IB resources or here to assess how your prep is going! If there are any ethical implications to your report, how do you plan on minimizing the environmental impact of your experiment?. 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. (Use egg as imitation of tooth). Read more about quadrat sampling here, Independent Variable: Soil pH, Nitrates in Soil, Oxygen concentration, Dependent Variable: Presence or absence of certain species. which are specifically designed for self study and revision. The challenge is really how to control the temperature of the fruit (or the light) for a long period of time, perhaps 2 weeks. 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. Atriplex amnicola) and expose them to increasing increments of independent variables, observing how their transpiration rates change. Toothpaste is supposed to block bacterial growth. 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. Lawrence Kok Sofia, Pancharevo, Bulgaria IB Science Teacher at Anglo American School of Sofia, AAS. This begs the question, is there an ideal concentration of sucrose for yeast growth? What's IB IA Program? Browse thousands of Internal Assessment, Extended Essay, and TOK examples. 13. Would soil pH effect the enzymes in the seed responsible for germination, is there another explanation? The biological functions of water. A well planned, structured, and executed IA is one that has been undertaken with complete zeal and enthusiasm. So there we have it! 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.

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