Independent Variable: Temperature/Psychological Stress (scary movies? Of course, you can use any of our topics for free. This looks like an interesting topic of study. Are you struggling with choosing your topic for your IB Biology IA? What effect do conditions, such as temperature, sunlight have on the rate of spoilage. Another difficulty will be to devise a way to measure the extent of fruit ripening, or softness. A 125ml bottle of nutrient agar contains enough to fill about 10 petri dishes. These proportions make enough nutrient agar to prepare two petri dishes. OP. In line with the IB Learner Profile, "Act with integrity and honesty". We hope our list of Internal Assessment Ideas was useful. Some of the challenges of this type of investigation will be controlling other factors which affect the growth of plants. The biological explanation of why blood pressure might change when reading may be tenuous. The climate is different at different altitudes and the growing season begins later at high altitude. Read more about it here. 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! Avoid this type of investigation, . Antibiotics are chemicals that kill or inhibit the growth of bacteria and are used to treat bacterial infections. Click here to learn more. 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'. It may even be possible to find a database of measurements of children of different ages. How does different sodium chloride concentrations affect seed germination in the bougainvillea plant? 1: Cell Biology 1.1: Introduction to Cells 1.2: Ultrastructure of Cells 1.3: Membrane Structure 1.4: Membrane Transport 1.5: The Origin of Cells 1.6: Cell Division 2: Molecular Biology 2.1: Molecules to Metabolism 2.2: Water 2.3: Carbohydrates and Lipids 2.4: Proteins 2.5: Enzymes 2.6: DNA and RNA 2.7: DNA Replication, Transcription and Translation 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! 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. 1 Department of Food Chemistry,Faculty of Pharmacy, Mahidol University 2 Department of Microbiology, Faculty of Pharmacy, Mahidol University Abstract Recent trends show that consumers have been searching for functional foods to improve bodily functions and overall health. 24. Still feeling a bit uneasy about the task ahead? You. Of course the underlying processes are controlled by enzymes, or the fruit ripening hormone ether. Compost is made from dead plants and manure is the waste from animals. Studying how sudden workout affects the heart rate and baroreceptor feedback. Its very important that you consider if whether you can apply these topics to your own life, as this shows personal engagement. The IB IAs are an essential part of ones overall subject performance since they make 20% of the final score. As the cell membrane disintegrates, alcohol can then enter the cell and . location on shore. 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. This would be a challenge and it would require some research before beginning. However, if you are still feeling lost, make sure to look at some of the strategies while choosing a good biology research paper topic. watch this thread. How does different conditioners affect the strength of hair? 5, Effect of BMI on skin surface temperature in various body areas on rate of recovery once exposed to cold. 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. But how do we get started on a lab report and, crucially, what should we write about? Topics about Biology, we've collected for you from our best Biology papers samples! How do different kinds of toothpaste compare? terms of service. 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. 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. 15, Analysing the impact of river pollution on marine life. are the criteria against which the investigation is assessed. Increasing sucrose concentration makes more sugar available for Cell Respiration but it also draws water out of yeast by osmosis, which could kill it. Lawrence Kok Sofia, Pancharevo, Bulgaria IB Science Teacher at Anglo American School of Sofia, AAS. Other possibilities are paper simulations, e.g. http://www.xrite.com/online-color-test-challenge. IA Review. Of course the IB guidelines on experimentation needs to be followed and written consent sought for participants. Practical procedures and controls will be the challenge, but data should be easy to record if the seedlings grow. 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. The internal assessment requirements are the same for biology, chemistry and physics. This is a simple idea, but the explanation is more complex, and this might be the challenge of this particular investigation. A quart-sized bowl works great. One idea would be to make a series of soils using active compost and sand. Email length need to be from 5 to 40 characters, Password length need to be from 5 to 40 characters. Check out some Physics IA ideas here!11, What is the effect of the salt concentration on germination of different types of seeds? should include all the normal conventions of d.p. Pour the bacteria onto the solidified agar plate. Some diseases spread through direct contact, others are transmitted by an insect vector. 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 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. HL Biology IA Help! I'll do so in a series of questions that will help you probe deeper into your IA. Internal Assessments are the perfect way to get students to put their knowledge to use by Observing, Questioning, and Investigating. Antibiotics are used to treat plants for bacteria. Passion is fundamental in research, after all. A clear RQ is essential and there are quite a few possibilities. Outline the Equipment, time, and resources to keep a check on its feasibility. Several university Extension services are now offering easy-to-use websites for those . Without further adieu, lets dive headfirst into, (Metabolism, Cell Respiration, Photosynthesis), Want some A-quality guidance? Along with a bundle of, with helpful examples! The challenge is to explain why there might be a change using biology and then to test it using some type of ecological sampling. In this investigation a change in a physiological feature is explored. Different plants will change their transpiration rates in response to the environment. 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. 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? Experimental setup: In this ecological experiment, you will use quadrat sampling to test how successfully different plant species grow in environments. Lots of scope but not an easy investigation to complete in the time, in 12 pages. Constraints, if any, need to be mentioned as well. Exploring root hair cells and finding their visibility with age. First is to ensure that there is some biology to explain any hypothesis, and that the RQ is firmly focused in the Biology. It is all the same when choosing that one Biology IA idea from a platter full of inspiration. Exploring how the reaction times of humans get affected with age. : Limitations and Improvements should be specified. 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. 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 . SIENE IA UIDE 8 info@lanternaeducation.com 23. The choice of physiological features of the body could include heart rate, or pupil size, or skin redness. Heres a link to a scientific article that did something very similar, copy their method. 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. It is very easy to extract DNA at home just using everyday kitchen supplies. Take inspiration from these and research further to land on that one idea that gets you going! Soil respiration can be measured using a CO2 probe and a data logger the same equipment could be used to measure the rate of photosynthesis, although growth (or photosynthesis) can be measured in other ways too. promotional emails that we send to you. Before we dive more in-depth, you might want to check out our, to own your Biology SL papers! At Lanterna we have hundreds of tutors who smashed Biology. Comparing the buffering actions of various substances: antacids, milk, sodium bicarbonate, sodium carbonate, detergents, etc. I investigated the change in mitotic index that occurred in onion root tips when they germinated in solutions of differing K+ ion concentration. Read more about quadrat sampling here, Independent Variable: Soil pH, Nitrates in Soil, Oxygen concentration, Dependent Variable: Presence or absence of certain species. Therefore, it's super important that your IB Biology IA gets as high a mark as possible. Extract your own DNA. Exploring how the Water Quality Index (WQI) is affected by water obtained from Chemical Industries/Sewage Treatment Plants. Canada: +1 (647) 249-7179USA (WhatsApp): +1 (678) 679-2365edu@plusplustutors.com, 407 Iroquois Shore Rd. Thankfully, weve asked some of our favourite IB graduates for some of the ideas they pursued! www.thinkib.net. How effective are synthetic antibacterial products compared to natural antibacterial products against the growth of Cut bacterium acnes? Dependent Variable: Ethylene levels, CO2 production, qualitative assessment. Decomposing bacteria and fungi are organisms that help the process of decomposition. Studying how different carbohydrates in edibles impact the blood sugar levels in humans. Water Bath Method - Loosen the agar bottle cap, but do not remove it completely. Bacteria with a capital B refers to the domain Bacteria, one of the three domains of life. 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. 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. 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. Challenges: Providing biological context for why youre measuring certain factors. 30 Biology IA topic ideas to get your lab report started! The evolution of parasites. Subscribe and get the latest IB guides, notes,news, tips and product updates. One option might be to test the chemicals on small aquatic plants, or germinating seedlings, but there are challenges to overcome here too. which are specifically designed for self study and revision. 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.

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