How to Grow Bacteria: 5 Experiments to Grow & Test Bacteria Registration confirmation will be emailed to you. 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. IB Elite Academy online tutors provides hundreds of IB Biology IA ideas at both IB Biology higher level, IB Biology standard level. 20 Fun and Interesting Biology Experiments for High School Biology IA Topics: 20+ Great Ideas to Get You Started Contact, Twitter The importance of agricultural microbiology. then this could be a very good study. 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'. NOTES: Probiotics eat the lactose in milk through fermentation. . 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. Use the epidemiological data to measure rates of change. 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). The individual. Place all 5 of the red apples into the test tubes (1 piece for each test tube). Perhaps some form of experiment using isotonic solutions on slightly dehydrated muscle tissue from a chicken leg, or liver would work. Maybe you can suggest that to your teacher? Copyright 2023 Get the grade you deserve. As the cell membrane disintegrates, alcohol can then enter the cell and . Different plants will change their transpiration rates in response to the environment. 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. Personal engagement, Exploration, Analysis, Evaluation, and Communication are the criteria against which the investigation is assessed. Most strands of this bacteria are found to be harmless and even healthy to be part of the human digestive system, however some strands can cause to the development of serious problems like . How the rate of decay affects temperature, water & oxygen - BBC Where do you even begin such a task? Bacteria with a capital B refers to the domain Bacteria, one of the three domains of life. 30, Exploring mollusc shapes with regards to an external variable e.g. 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. Constraints, if any, need to be mentioned as well. Pay attention to one that is interesting for you, and that you might have ideas on how to develop the topic on. which are specifically designed for self study and revision. The first step consists of spitting on the glass and adding a pinch of salt to it. These are all genera and the specific species present definitely vary between cultures. Some plants grow well in coastal soils with igh salt concentrations but others don't. Its very important that you consider if whether you can apply these topics to your own life, as this shows personal engagement. 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. 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. 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. 3, Describe how the primary productivity of algae changes with temperature, algae concentration, other aquatic plants, salinity, nutrients, and any other variables you may want to consider. Plot this data with A on the Y-Axis and wavelength in nm on the X-axis. 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. It may even be possible to find a database of measurements of children of different ages. Read more about quadrat sampling here, Independent Variable: Soil pH, Nitrates in Soil, Oxygen concentration, Dependent Variable: Presence or absence of certain species. 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. Unraveling topoisomerase IA gate dynamics in presence of PPEF and its 14, What is the respective change of allele frequency when initial frequencies are manipulated? 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. It is important that you do the work yourself and not just copy the material. 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. IA Descriptors-1 - IA Descriptors for IB Biology; PDB-101 Molecule of the Month Ribosome; Hardy-Weinberg equation - example; Biology paper 1 HL n19; . IB Biology IA Ideas wont strike out of the blue, but heres a list of. Dependent Variable: Ethylene levels, CO2 production, qualitative assessment. Introduction 1. there Skip to document Ask an Expert Sign inRegister Sign inRegister Home Ask an ExpertNew 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. They are the foundation of food chains in almost every ecosystem. 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. Kimchi Chemistry | Science Project How to measure growth of algae with colorimeter - Biology Stack Exchange 170+ Biology Research Topics for Students - EduBirdie.com This is an interesting topic of investigation which relates to osmosis and ecology. State your hypothesis; it is important in the context of your research. The Aim answers Why while the Research Question answers the What. tillu22. Observe how changing the colour of the light source impacts the success of phototropism! If you insist on trying this then be sure to cover the control of variables, there are a lot which can affect the heart. One option might be to test the chemicals on small aquatic plants, or germinating seedlings, but there are challenges to overcome here too. 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. Remember! We look forward to joining the Lanterna and being part of your success. Decomposition is crucial to the cycling of elements, such as carbon from one living organism to another. 996+ Videos, 1180+ PDF Files, 5858+ Sample questions. The internal assessment, worth 20% of the final assessment, consists of one scientific investigation. To help you find your own topic among interesting biology research topics, we prepared some useful tips to follow. Using LeafLab - plant physiology/photosynthesis to test the effectiveness of different colours of light on the photosynthesis rate of tomato plants. They cause our teeth to rot, shaping plaque and causing awful breath. 10, Can we slow down the decaying times of vegetables? This is a bit more complex than a simple pulse rate investigation, but the challenge to control variables is equally great. About us If some abiotic factors can also be recorded including the pollution level, eg nitrate level, BOD, turbidity etc. Toothpaste is labelled according to how natural or how chemical the contents are. Investigate how different species of plants respond differently to environmental stimuli. 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. Therefore, 5 trials with 5 samples each make up 25 samples in total. It is important to set the Research Question in the background of the chosen topic. 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! Alcohol is a common active ingredient in many of the commercial mouth washes. To what extent does the mass of sodium nitrate powder have an effect on the quality of beef as a preservative. We hope our list of Internal Assessment Ideas was useful. To find out more, see our. 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. 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.

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