Vitamins are complex organic substances that are needed in very small amounts for many of the essential processes carried out in the body. As most of vitamins cannot be produced by our bodies, we need to obtain them from the food, supplements etc. Called Ascorbic acid, Vitamin C is found in many products such as fruits, vegetables and diary products.
Posted on January 31, by IB Tips Your Biology IA is one of the best ways to boost your final score, especially if your on the upper boundary of a lower grade.
Literally, it could push you up a grade. An experimental study on…. Make this as specific as you possibly can.
In itself it should be a one line brief on what your experiment is about- the examiner should be able to tell instantly what you are investigating, your independent and dependent variables. Are you looking for the effect of something on something else, the time taken for A to react with B etc.?
If you are changing something, make sure you outline to what extent you are changing it. What are the essential variables that need to be kept constant e.
State what you are measuring your dependent variable in, is it seconds? This should be where you essentially show the theory behind your investigation, and thus show your understanding of what you are doing. In this case, my practical had to do with enzymes, so in my background theory I made sure I explained how enzymes worked on its substrates, and in particular, how rennin worked on milk I researched this, and put it as simply as possible in my own words, while still sounding smart.
Harvard Style Referencing is loved by the IBO, and there are plenty of generators out there that can do it for you. Give a one line hypothesis stating what you think will happen this should be in bold. Explain your hypothesis based on the theory directly under the statement you have just made.
Link it back to the theory and explain it as logically as possible — show the examiner that you have made the link, and thus understand what is happening. A table of all your variables independent, dependent, controlled, and how they were achieved: It should be 2 columns, on the left, your variables, and on the right a brief explanation as to how you achieved it.
Again, be as specific as possible and get somebody else to read it and tell you whether it makes sense. Reading it aloud to yourself also helps.
It may be useful to label all your graphs and tables with numbers so that you can make easy reference to them. All your headings for tables and graphs should be very specific as well.
If there are any anomalies in your data, highlight them clearly, and explain below your table why you consider them to be anomalous, and thus you are excluding them.
Crucial element to any investigation. This is where you can really stretch out an investigation and find things to comment upon an abnormally large standard deviation, any odd error calculations, any trends that are occurring? Error bars and their explanation underneath the graph e.
Note down any calculators or software e. Excel that you used to calculate error etc. Include any information on any action you took to resolve those issues e. On the left column, what you could have improved, on the right, an explanation as to how you could improve this in the future.
They should be meaningful, and not superficial. Come up with at least 5. The IB wants you to recognise that you are not perfect and that with every investigation, there are things that can go wrong. They will give you marks for making mistakes, as long as you can identify them and identify solutions for the future.
That is, you are better off performing a less than perfect investigation, and perfecting your evaluation and discussion.
This is to show that you understand the factors that may have prevented you from performing a flawless investigation which we all know, you did not. However, you must never blame the accuracy of your measuring tools — to scientists, this is a terrible excuse.internal assessment Rubrics below come from the IB Biology subject guide online.
Click for a printable summary of IB Biology internal assessment requirements. Essential Biology G3: Impacts of Humans on Ecosystems Here is a good TED talk from Stephen Palumbi on biomagnification in ocean food chains, with the resulting human health impacts: And this article from Science Daily outlines the work of a team of researchers as they demonstrate biomagnification in a simple food chain, with links to.
The effect of carbon not being fixed would be an excess, which would contribute to the “greenhouse effect” as when an excess of carbon is formed in the form of carbon dioxide, the build-up of the gas would cause heat to be further trapped within the planet instead of it being radiated away.
IB Environmental Systems and Societies > > > > > > > > IB Biology > > > > > Selecting a suitable Internal Assessment is just as important as the Internal Assessment itself.
Be certain that your question is as clear and specific as possible. Investigate the effect of one factor of your choice on photosynthetic rates of Elodea. The. Errors and Uncertainties in Biology Internal Assessment The treatment of errors and uncertainties is relevant in the internal assessment criteria of: Table 2 shows data collected from a practical on the effect of salinity on seed germination.
Given that ten seeds were planted in each of six petri dishes, reported percentages would be. IB Biology Internal Assessment The Design Criterion The practical work component (laboratory work) of the IB Biology Course is designed to give students the.