How do detergents, drinks, yogurt, and milk stack up when it comes to buffering? At this point, all apparatus should have been properly set-up and the experimentations should be able to commence. Without further adieu, lets dive headfirst into 30+ IB Biology IA ideas for your Biology IA Investigation! IA Biology HL 6 Use a clean, microwave-safe container to mix the agar with water and then boil it. Remember any participants will need to give written consent before any experimenting, and the mild stress of exam conditions must be harmless. 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. 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. What's IB IA Program? This begs the question, is there an ideal concentration of sucrose for yeast growth? 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. Thankfully, weve asked some of our favourite IB graduates for some of the ideas they pursued! The task will have the same assessment criteria for SL and HL. 3. . Preview 1 out of 13 pages To make the experiment more detailed, students can rub collected samples on filter paper to observe which plants present which colors. Dependent Variable: Respiration Rate (measure with respirometer or gas probe detecting CO2 formation. Experimental setup:In this ecological experiment, you will use quadrat sampling to test how successfully different plant species grow in environments. Writing the IA Your introduction is about summarizing what you are doing and why you are doing it. How do the factors temperature and light intensity that affect photosynthesis balance out each other when it comes to the time taken for photosynthesis to occur? The biological explanation of why blood pressure might change when reading may be tenuous. Therefore, it's super important that your IB Biology IA gets as high a mark as possible. 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. the The IA explored what affect does Enzyme Trypsin has on protein Casein which is contained in milk. To help you find your own topic among interesting biology research topics, we prepared some useful tips to follow. Sterilize the spreader by holding it over the spirit lamp and then cooling it in the laminar airflow. Exploring root hair cells and finding their visibility with age. It is all the same when choosing that one Biology IA idea from a platter full of inspiration. Posted October 26, 2015. The external assessment of biology consists of three written papers. | The climate is different at different altitudes and the growing season begins later at high altitude. This creates fermented products. Test the stomatal density of different leaves exposed to variable conditions using a microscope. We look forward to joining the Lanterna and being part of your success. 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! One possible solution is to measure another (or some other) factors about the body and look for a correlation. Experimental setup:Follow this link to find out more about colour blindness and how to investigate it. with peppered moth types. This might involve the use of a data logger, or perhaps a titration using bromothymol blue. OP. 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. (1 More IB Past Papers). Majority of them are restricted to the intestine One idea would be to make a series of soils using active compost and sand. 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. How does increasing the concentration of Oxytetracycline in mg/L affect root elongation in cm of Citrus limon? 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! Along with a bundle of, with helpful examples! These criteria are Communication, Exploration, Personal Engagement, Evaluation, and Analysis. Originally Answered: what are some examples of good biology IA's? Comparing Gersmehl diagrams from different biomes or applying them in different real-world conditions by measuring the content of nutrient sinks- biomass, litter, or soil. Independent Variables: Temperature, Sunlight variation, Skimmed vs Whole, Dependent Variable: Rate of bacterial growth (on agar plates), pH of milk. Then use agar plates and bacteria to test their effectiveness by seeing how many bacteria grow in the different plates! Clearly state your interest. Before we go looking for IB Biology IA ideas, lets get a clear comprehension of the. location on shore. What brand of laundry detergent is the most effective in the digestion and removal of lipid stains? 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. Natural selection - lab bench Which type of water fleas escape predators best? There are lots of practical problems to overcome, most importantly how to change the soil so that it has different amounts of respiration. However, keep in mind that even though we are doing our best to maintain this list fresh, other students will find it as well. Reply | 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. Experimental Setup:Create different environments for vegetables to decay in and measure the decay over a fixed period. 3. . Weaknesses like using high uncertainty apparatus should be addressed in the evaluation. 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 :) 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. My IA was on bacteria by the way if you have any questions. reply. Independent Variable: Age, Tiredness, Gender, Eye Colour. So there we have it! 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. 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. 29, Determining the effect of time on the plasmolysis of potatoes, 30, Exploring mollusc shapes with regards to an external variable e.g. Below you will find science fair project ideas primarily related to biology. then this could be a very good study. Experimental setup:Use a potometer to measure the rate of transpiration. They are produced in nature by soil bacteria and fungi. In line with the IB Learner Profile, "Act with integrity and honesty". Biology IA Ideas with Independent Variables 1. A 125ml bottle of nutrient agar contains enough to fill about 10 petri dishes. 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. Remember! Profile. 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. NOTE: These topics are purely meant as inspiration and are not to be chosen blindly. What is the most effective way of fighting an endemic? Does it matter what type of light the plant is exposed to affect the growth of auxin? Legal There are some quite nice online tests of colour vision, and also many telephone apps. Pease comment on broken links and suggest alternative ideas in the comments. Investigating how tuberculosis's Incidence is related to a countrys Human Development Index(HDI) level. Download our Guide: How to Write a Perfect Biology IA (Click Here), If youre interested in getting additional support for your Biology IA, we have a team of expert IB Biology tutors that can help you plan, structure and execute your assignment. Different plants will change their transpiration rates in response to the environment. which are specifically designed for self study and revision. Some of the challenges of this type of investigation will be controlling other factors which affect the growth of plants. Reply 7. Bananas lend themselves to this because their skin changes colour. Exploring how the reaction times of humans get affected with age. Lower concentrations will slow respiration because of a lack of substrate. 8, How do the buffering actions of milk, yogurt, juices, detergents etc. Click here (amylase) or Click here ( pancreatin amylase) from Carolina. 14, What is the respective change of allele frequency when initial frequencies are manipulated? classes to learn/preach! Registration confirmation will be emailed to you. Read more about it here. Enter your email and tell us where to send them! The challenge is to explain why there might be a change using biology and then to test it using some type of ecological sampling. Don't do it! Fear not, we have elite Biology tutors that can assist you through the process IB Maths is a struggle for most people going through their diploma. 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. How does the acidity of different beverages affect the deterioration of tooth enamel? 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. IA investigation - teacher's marking activity, Metabolism Respn & Photosynthesis test HL, Metabolism Respn. 30 Biology IA topic ideas to get your lab report started! Ensuring that there is enough data will also be important as there are likely to be quite a few other factors which will need controlling or considering at least. Click, See 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? 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 . HL Biology IA Help! Lots of plant ideas in the questions and answers, https://sciencecourseware.org/BiologyLabsOnline/, Mean arterial pressure calculator online -, Sciencelab Chemical data sheets MSDS (Materials Safety data sheets). Despite so, there are still some that can cause bloody diarrhea, severe anaemia or kidney failure, all in which can lead to death. Decomposing bacteria and fungi are organisms that help the process of decomposition. There could be some biology theory applied to the plants leaves, or roots. What effect do conditions, such as temperature, sunlight have on the rate of spoilage. There are biology topics that can be connected to culture, music, language, and the like. It could be used in a wide range of labs. Browse thousands of Internal Assessment, Extended Essay, and TOK examples. IBDP Biology InThinkingSubject Sites for teachers & their classes 24. HL Biology IA Help! 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? How effective are synthetic antibacterial products compared to natural antibacterial products against the growth of Cut bacterium acnes? Read more about quadrat sampling here, Independent Variable: Soil pH, Nitrates in Soil, Oxygen concentration, Dependent Variable: Presence or absence of certain species. Your Research Question and the Aim of the Investigation are separate sub-headings with different implications. This is a simple idea, but the explanation is more complex, and this might be the challenge of this particular investigation. at which many forms of bacteria thrive [9]. Population growth curves. Auxin hormone is largely responsible for controlling the direction of plant growth. If you are a student and wish to access these resources, ask your school to subscribe. Still feeling a bit uneasy about the task ahead? 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. First is to ensure that there is some biology to explain any hypothesis, and that the RQ is firmly focused in the Biology. 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. How does different conditioners affect the strength of hair? Before you can grow bacteria, you'll need to prepare sterile culture dishes. Starting at deep purple, and ending at far red, write down the A values. Dependent Variable: Ethylene levels, CO2 production, qualitative assessment. It is very easy to extract DNA at home just using everyday kitchen supplies. Lactobacilli reproduction and growth is the cause of milk spoilage. 13, Comparative study between 5 different species of animals using BLAST analysis to determine evolutionary history. All rights reserved. Access them all! Lost your password? We are available: Mon-Fri 9am-7pm CESTSat 10-5pm CESTSun 12-5pm CEST. Introduction location on shore. How do you even choose a topic? One option might be to test the chemicals on small aquatic plants, or germinating seedlings, but there are challenges to overcome here too. Contact, Twitter The problem of this investigation is that it is difficult to measure rehydration or salinity. The data must be analysed by the student and tables / graphs etc. This can become interesting because you can test how different conditions affect milks spoilage, Experimental setup:In this experiment, you can compare milk spoilage. Choosing the perfect IB Biology IA idea is only the first step in making ones IB Biology Investigation, but definitely, the most significant. The biological functions of water. We hope this article will serve as a foundation for you to get going on that IB Biology IA Investigation of yours! How do cleaning products affect the growth of house plants? Give us the email address you use to log in to Lanterna and well send you instructions for resetting your password. How does the composition of soil affect the growth of runner Plants from the original plant? At lower pH levels of 4.0 - 5.0, lactic acid bacteria can grow and pro- duce lactic acid. It is all the same when choosing that one Biology IA idea from a platter full of inspiration. Take inspiration from these and research further to land on that one idea that gets you going! Measuring the change in iron levels of avocados as they go through different ripening stages 25.