biology ia ideas bacteria biology ia ideas bacteria

Independent Variable: Plant species + humidity/temperature/ light intensity, Dependent Variable: Rate of transpiration. The bacterial component shows more variation, including representation from Acetobacter and Gluconacetobacterto turn ethanol into acetic acid (giving the sour, vinegar flavor)as well as Lactobacilluslactic acid-producing bacteriain some instances. How does the shade of a leaf relate to the composition of photosynthetic pigments it contains? 1. 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. Perform the relevant analysis, keeping in mind the research question, and conclude. The performance in internal assessment at both SL and HL is marked against common assessment criteria, with a total mark out of 24. Your Ultimate Guide for Acing IB Psychology Paper 2, The Perfect Guide to Earn a 7 in your IB Psychology IA, The A to Z Guide for Structuring your TOK Essay for Optimal Success, 7 Different Ways to Make the Most of your IB DP Y1 Winter/Summer Break, How to Stay Sane: A Promising Guide to Stress Management in the IB DP. Legal (16 More IB Resources), See An important thing to note here is that although you are allowed to take inspiration from existing research, papers/journals, you are expected to give a novel perspective to the idea while producing it in your investigation. The data collection using the online lab may be easy enough, but the challenge is going to be designing a meaningful experiment and collecting enough results to complete the analysis well. IA Overview. IB Biology IA topics: Biology being a scientific course encompasses a lot of investigation and research. These ideas are for you to start exploring and begin! Browse these for more information! It might seem like a lot of work, but with the right topic in hand, you will go beyond your expectations! How do detergents, drinks, yogurt, and milk stack up when it comes to buffering? This might involve the use of a data logger, or perhaps a titration using bromothymol blue. This is a simple idea, but the explanation is more complex, and this might be the challenge of this particular investigation. Extract your own DNA. assessment, worth 20% of the final assessment, consists of one scientific investigation. The effect of pets on the diversity of plants in a garden lawn. Using nationally published data on epidemiology and weather data is certainly possible and it could happen that there are correlations between climate and some disease outbreaks this will need explaining in terms of the mechanisms of transmission of the specific disease. These microbes assault the nourishment scraps that stick to, and in the middle of our 2 teeth. Testing global warming: How does CO2, water vapour, oxygen, or any other variable affect temperature inside a cutoff bottle exposed to simulated sunlight? The individual. Heres a link to a scientific article that did something very similar, copy their method. Download our 2022 Biology IA Guide (Checklist) to help write the perfect Internal Assessment. Measuring the change in iron levels of avocados as they go through different ripening stages 25. 5 years ago. http://www.xrite.com/online-color-test-challenge. 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. Read more about quadrat sampling here, Independent Variable: Soil pH, Nitrates in Soil, Oxygen concentration, Dependent Variable: Presence or absence of certain species. Change the different conditions in which the plants are found as well as the species. 1. As the cell membrane disintegrates, alcohol can then enter the cell and . A well. Comparing the buffering actions of various substances: antacids, milk, sodium bicarbonate, sodium carbonate, detergents, etc. Toothpaste is supposed to block bacterial growth. Test the stomatal density of different leaves exposed to variable conditions using a microscope. Plant project studies allow us to learn about plant biology and potential usage for plants in other fields such as medicine, agriculture, and biotechnology. Use it to spread the bacteria across the surface of the Petri dish while rotating it. IB Elite Academy online tutors provides hundreds of IB Biology IA ideas at both IB Biology higher level, IB Biology standard level. Different plants that live in different conditions will have different requirements for gas exchange. You can find more information here, Independent Variable: Different Antibiotics, Different Seeds, Dependent Variable: Success of Germination, Rate of Germination. This was my Biology HL IA which was given a 21/24 by the IB. Investigating how the concentration of RuBisCo in the leaves of a plant species varies with varied exposure to sunlight. 24. 2, Testing global warming: How does CO2, water vapour, oxygen, or any other variable affect temperature inside a cutoff bottle exposed to simulated sunlight? 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. Water Bath Method - Loosen the agar bottle cap, but do not remove it completely. OP. Neither should the idea be too generic and nor too simplistic. This begs the question, is there an ideal concentration of sucrose for yeast growth? 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. A well planned, structured, and executed IA is one that has been undertaken with complete zeal and enthusiasm. 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. The IB IAs are an essential part of ones overall subject performance since they make 20% of the final score. 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. They cause our teeth to rot, shaping plaque and causing awful breath. The challenge will be in deciding which concentrations to test and in explaining the results. Place all 5 of the red apples into the test tubes (1 piece for each test tube). Also, be sure that you know all of the rules and regulations for your particular science fair before you begin your project. Hurry, this offer ends on January 17th! This FREE guide reveals the most powerful information for boosting your extended essay score and Brian and also Louis G. Nickell and Alexander C. Finlay in the Journal of agricultural and Food chemistry, 2015. Ventilation rate is a measure of how quickly you breathe. The development of biotechnology. 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. By submitting this form, I agree to the data entered being used by Nail IBNSW for sending 3. . The biological explanation of why blood pressure might change when reading may be tenuous. Biological explanations could look at the way we grow, and if the brain changes size at the same rate as the lungs. A full experimental setup can be found on this link. 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. 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. I'll do so in a series of questions that will help you probe deeper into your IA. NOTES: Probiotics eat the lactose in milk through fermentation. This looks like an interesting topic of study. 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. The intra-abdominal Campylobacter infection model facilitates the characterization of peripheral blood leukocyte . The biological functions of water. 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. Where do you even begin such a task? IB Biology IA Ideas wont strike out of the blue, but heres a list of. Every year the examiners' report mentions problematic Investigations, those which are unethical, or standard labs which are not applied to any specific interest. Click here to reset it. 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? You. In this investigation a change in a physiological feature is explored. 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. 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. 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. Therefore, it's super important that your IB Biology IA gets as high a mark as possible. watch this thread. Experimental setup:Follow this link to for more information of modelling! (Write your IA title!) Practical work could look at the density of aphids on leaves of different shades, or bumble bee feeding on flowers of different shapes or predator prey interactions etc. 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. Tip 1: The level of interest matters. Perhaps another research question will be better, something linked to hormones, or to physical activity. Several university Extension services are now offering easy-to-use websites for those . How do cleaning products affect the growth of house plants? [], We all know that scoring superbly on internal assessments is a great way to boost our IB grades. Starting at deep purple, and ending at far red, write down the A values. Still feeling a bit uneasy about the task ahead? using potassium permanganate and heating, from a protocol from Science & plants for schools. Does the behaviour of an animal change as the population increases? It may even be possible to find a database of measurements of children of different ages. 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 . 1. 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. 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. (1 More IB Past Papers). Athletes perform better if they warm up properly before an event. Maybe you can suggest that to your teacher? 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. 3.2 The More Data, The Better. Stir these together well: -teaspoon agar (1 1/5 grams) 6, How does sudden change in body position affect heart rate and baroreceptor feedback? One idea would be to make a series of soils using active compost and sand. 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. How does different conditioners affect the strength of hair? Are you looking for some IB Biology Internal Assessment (IA) ideas? 19, What is the difference in the CO2 levels exhaled before and after enduring physical exercise? Perhaps some form of experiment using isotonic solutions on slightly dehydrated muscle tissue from a chicken leg, or liver would work. 15. with current laws and regulations, you can unsubscribe at any time by clicking on the link in There are some online simulations but these can only be used in conjunction with some other analysis; never just present the online lab as an investigation on it's own. 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. Bacteria with a capital B refers to the domain Bacteria, one of the three domains of life. Internal Assessments are the perfect way to get students to put their knowledge to use by Observing, Questioning, and Investigating. Give us the email address you use to log in to Lanterna and well send you instructions for resetting your password. IA is one that has been undertaken with complete zeal and enthusiasm. HL Biology IA Help! 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). How does the percentage of salinity in water affect the rate of growth of radishes in mass? Challenges: Providing biological context for why youre measuring certain factors. Paper 2 contains short-answer and extended-response questions on the core (and Additional Higher Level (AHL) material . However, keep in mind that even though we are doing our best to maintain this list fresh, other students will find it as well. Profile. tillu22. This investigation is Design an experiment to investigate a factor which affects the precision of colour vision, age, tiredness, gender, eye colour, etc. NOTE: These topics are purely meant as inspiration and are not to be chosen blindly. We have a team of awesome tutors ready to help you ace the IB. A quart-sized bowl works great. 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. Contact, Twitter It is all the same when choosing that one Biology IA idea from a platter full of inspiration. 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. Independent Variable: Different household cleaning products/increasing concentrations of cleaning product. 9, Do our reaction times slow down with age? Exemplars. Designed by Harvard tutors to allow you exceed beyond expectations. To help you find your own topic among interesting biology research topics, we prepared some useful tips to follow. It could be used in a wide range of labs. 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. Take 10 micro liters of the cultured. InThinking Subject Sites for teachers & their classes, Only teachers can take out free trials or subscriptions to our subject sites at Go through several IA ideas to understand what all topics are in sync with the IB Biology curriculum and if something grabs your attention, hold on to it! One possible solution is to measure another (or some other) factors about the body and look for a correlation. These criteria are Communication, Exploration, Personal Engagement, Evaluation, and Analysis. Topics about Biology, we've collected for you from our best Biology papers samples! This is nice project if there is a specific environmental gradient in the site being investigated. Some diseases spread through direct contact, others are transmitted by an insect vector. 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. Along with a bundle of, with helpful examples! This is a nice wet laboratory project and there are some simple ways to measure the growth of the bacteria but these can be fiddly to work out, and concentrations of bacteria used in inoculations will need working out. Avoid this type of investigation, . 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 a clean, microwave-safe container to mix the agar with water and then boil it. The 80 Most Common IB Biology Exam Questions! Level of destructive aggression, recklessness and aggression in general of team sportsmen is higher than individual ones. 12, What happens after the best-by date of dairy products? 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. 2. Decomposition is crucial to the cycling of elements, such as carbon from one living organism to another. | Math solutions -. [], or you can call us here at: +44 20 4571 0455. )/ Studying, Dependent variable:Ventilation rate. There needs to be some clear links to the biology of blood pressure and how exercise affects it. Internal Assessments are the perfect way to get students to put their knowledge to use by Observing, Questioning, and Investigating. What's IB IA Program? 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. They investigate the hypothesis that. This investigation tries to establish a pattern between the weather and the spread of a disease. 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? Remember any participants will need to give written consent before any experimenting, and the mild stress of exam conditions must be harmless. Weaknesses like using high uncertainty apparatus should be addressed in the evaluation. 14. Measuring theses factors might be tricky and will involve some testing, although using a phone camera or a video camera could help. Does it matter what type of light the plant is exposed to affect the growth of auxin? classes to learn/preach! How do different concentrations of lactases affect the breakdown of disaccharides like lactose in milk effectively? Click here for top-notch IB resources or here to assess how your prep is going! 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 . Can the max performance be measured best using max heart rate or maximum speed? The data must be analysed by the student and tables / graphs etc. Learn everything you need to get a 7 in your IB subjects with our online courses. 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 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. Antibiotics are chemicals that kill or inhibit the growth of bacteria and are used to treat bacterial infections. 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. 5, Effect of BMI on skin surface temperature in various body areas on rate of recovery once exposed to cold. should include all the normal conventions of d.p. Follow the steps here to extract the DNA. Pour 250 ml hydrogen peroxide of 3% concentration into the 300 ml glass beaker. They are the foundation of food chains in almost every ecosystem. 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? First is to ensure that there is some biology to explain any hypothesis, and that the RQ is firmly focused in the Biology. 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. Preview 1 out of 13 pages 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. SIENE IA UIDE 8 info@lanternaeducation.com 23. 30, Exploring mollusc shapes with regards to an external variable e.g. 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'. Remember that these samples are meant to give direction and ideas. : Limitations and Improvements should be specified. The internal assessment requirements are the same for biology, chemistry and physics. Experimental setup:Choose different types of toothpaste/mouth-rinse and create diluted solutions of them (mix them with water). 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. IA investigation - teacher's marking activity, Metabolism Respn & Photosynthesis test HL, Metabolism Respn. A 125ml bottle of nutrient agar contains enough to fill about 10 petri dishes.