Change the different conditions in which the plants are found as well as the species. 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 different sodium chloride concentrations affect seed germination in the bougainvillea plant? Don't do it! 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. Alternatively, sign up to our sites at www.studyib.net The IB IAs are an essential part of ones overall subject performance since they make 20% of the final score. Observe how changing the colour of the light source impacts the success of phototropism! 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. Other possibilities are paper simulations, e.g. tillu22. These are just some of the questions which will need answering. Pour the bacteria onto the solidified agar plate. Another simple biology experiment involves going into your natural environment, such as a local park, to observe diversity among plant samples. compare? Lots of scope but not an easy investigation to complete in the time, in 12 pages. This is a simple experiment to carry out, but a difficult experiment to get good controlled data for. So there we have it! Exploring root hair cells and finding their visibility with age. . Login length need to be from 3 to 40 characters, Password length need to be from 8 to 40 characters. You. 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. Using a previously characterized and described abdominal model to define the avian immune response to Salmonella intra-abdominal challenge in chickens, we have adapted this technique for the study of chickens' immune response to a Campylobacter intra-abdominal challenge. Independent Variables: How temperature affects transmission viral diseases, How different methods of transmission affect rates of spreading, Challenge: Statistical analysis Website with loads of data on infectious disease: http://globalhealthgovernance.org/blog/2017/12/1/how-to-find-data-on-infectious-disease-outbreaks, Use online colour vision tests to see how different factors affect colour blindness. Perhaps some form of experiment using isotonic solutions on slightly dehydrated muscle tissue from a chicken leg, or liver would work. Vegetables decay over time but how can we slow down the process? Test the stomatal density of different leaves exposed to variable conditions using a microscope. 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. Read more about it here. 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. Which pigments are made first in a growing leaf, or are all the pigments made at the same time? . At Lanterna we have hundreds of tutors who smashed Biology. These ideas are for you to start exploring and begin! Different abiotic factors affect the growth of different plants, test the different conditions and then note how plant species change in their presence. 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. In this post, we outline the different necessary components. If there are any ethical implications to your report, how do you plan on minimizing the environmental impact of your experiment?. Ecological techniques and quadrat sampling could be used together with mapping of digging or scratching to establish whether the presence of a pet increases plant diversity or not. . There are some quite nice online tests of colour vision, and also many telephone apps. http://www.xrite.com/online-color-test-challenge. 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? IA Advice & Ideas; Help! 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. Thankfully, weve asked some of our favourite IB graduates for some of the ideas they pursued! Lactobacilli reproduction and growth is the cause of milk spoilage. This would be a challenge and it would require some research before beginning. Homemade extraction of your own DNA. IB Biology IA topics: Biology being a scientific course encompasses a lot of investigation and research. Biology IA Ideas with Independent Variables 1. This could be compared to listening to music where research has been done to establish that pulse rate can be affected by music. This is a list of possible sites for students to use as online labs. When looking for information, be sure to seek information from institutions and agencies that share science-based, objective results. Are you looking for some IB Biology Internal Assessment (IA) ideas? There are lots of practical problems to overcome, most importantly how to change the soil so that it has different amounts of respiration. Independent Variable:Temperature, Oxygen availability. Compost is made from dead plants and manure is the waste from animals. Grab ideas, see examples and create own perfect Biology essay and research paper! This is an interesting topic of investigation which relates to osmosis and ecology. IA is one that has been undertaken with complete zeal and enthusiasm. Choosing the perfect IB Biology IA idea is only the first step in making ones IB Biology Investigation, but definitely, the most significant. Auxin hormone is largely responsible for controlling the direction of plant growth. 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. In accordance 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. 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 :) 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. The IA explored what affect does Enzyme Trypsin has on protein Casein which is contained in milk. 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. Extract your own DNA. Preview 1 out of 13 pages Investigation of the functioning of the eyes when using paper or different electronic screens. The difficulty begins with identifying the genres in a scientific way. Would soil pH effect the enzymes in the seed responsible for germination, is there another explanation? 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. How does different concentrations of Gibberellic acid affect the germination of a dolly Parton rose? Email length need to be from 5 to 40 characters, Password length need to be from 5 to 40 characters. The internal assessment, worth 20% of the final assessment, consists of one scientific investigation. IA Descriptors-1 - IA Descriptors for IB Biology; PDB-101 Molecule of the Month Ribosome; Hardy-Weinberg equation - example; Biology paper 1 HL n19; . At lower pH levels of 4.0 - 5.0, lactic acid bacteria can grow and pro- duce lactic acid. Place all 5 of the red apples into the test tubes (1 piece for each test tube). Controlling other factors which affect germination and collecting a large enough data set will also be good challenges for a Biology student to work out. Citing documents/web pages and giving references is another important aspect of your IA that needs to be taken care of. The choice of physiological features of the body could include heart rate, or pupil size, or skin redness. at which many forms of bacteria thrive [9]. are the criteria against which the investigation is assessed. promotional emails that we send to you. You certainly dont want to miss out on these! Designed by Harvard tutors to allow you exceed beyond expectations. 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. Copyright 2023 Nail IB. If youre looking for guidance on how to actually write an IA once youve chosen your topic, check out our IA Checklist post! A quart-sized bowl works great. 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? Student work is internally assessed by the teacher and externally moderated by the IB. 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. should include all the normal conventions of d.p. 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. Report. A 125ml bottle of nutrient agar contains enough to fill about 10 petri dishes. In this post, we give you 50 IB Biology IA Ideas to help you speed up your research process. The biological explanation of why blood pressure might change when reading may be tenuous. Of course the underlying processes are controlled by enzymes, or the fruit ripening hormone ether. How do cleaning products affect the growth of house plants? Brian and also Louis G. Nickell and Alexander C. Finlay in the Journal of agricultural and Food chemistry, 2015. Halophytes and Xerophytes have different adaptations to control transpiration rates, how do they each respond to temperature changes? But how do we get started on a lab report and, crucially, what should we write about? Perhaps one of these other variables will be a better variable to investigate instead of music. [], We all know that scoring superbly on internal assessments is a great way to boost our IB grades. Read more about quadrat sampling here, Independent Variable: Soil pH, Nitrates in Soil, Oxygen concentration, Dependent Variable: Presence or absence of certain species. Topics about Biology, we've collected for you from our best Biology papers samples! 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. Follow the steps here to extract the DNA. 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. The challenge is really how to control the temperature of the fruit (or the light) for a long period of time, perhaps 2 weeks. Plant project studies allow us to learn about plant biology and potential usage for plants in other fields such as medicine, agriculture, and biotechnology. Reply It is important that you do the work yourself and not just copy the material. In this investigation a change in a physiological feature is explored. 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. Therefore, it's super important that your IB Biology IA gets as high a mark as possible. . Stuck for Ideas planning your Biology IA? These five biology research topics are for graduate-level students, catering specifically to those in top programs around the country: What evidence is there of a pandemic that can wipe out half of the world's population? What effect does temperature have on the ripening process of a fruit?. The five assessment criteria are personal engagement, exploration, analysis, evaluation and communication. Here the challenge is the exploration section. Or find the correlation between the height of one's parents and their own height, then make predictions based on your findings. )/ Studying, Dependent variable:Ventilation rate. The internal assessment requirements are the same for biology, chemistry and physics.