How To Write A Lab Report For Biology?

If you are going to write a biology lab report for your college or university, you may need some guidelines on how to write it. Here you can find a guide for biology students. If you need help in writing a biology lab report for college or university, follow these simple instructions and you will find out how to write a perfect lab report including lab report outline.

The main objective of this work, an important part of education, is to analyze your biology experiment and to demonstrate if you conducted this experiment successfully and to understand all the processes that you had observed during your work.

The format may vary depending on the requirements of your teacher and class, thus, it is important to ask your teacher about the format of the report.

Biology Lab Report Format

What is an appropriate biology lab report format? A lab report for biology has a specific structure and format – let’s take a look at a typical structure if you need to write a college lab report.


The abstract informs about the purpose of an experiment and conclusions after it. In this part, you need to prepare five main sections – the purpose of the experiment, the problem, the methods that were used during your experiment, the results of it, and the conclusion. This information must be given in a clear manner and the abstract is the last section you should write. Please see the example below to find out how to write an abstract for a lab report.

✏️How should it look like? Here is a short example:

The particular experiment has been carried out in order to define the factors that have a positive effect on the rates of enzyme reactions in cellular activities due to the fact that certain enzymes appear to be more effective than others. The catecholase activity of enzymes has been measured through its rate of absorption in a spectrophotometer, with the use of light that has a 540 nm wavelength. In the course of the experiment, we compared samples with a different concentration of enzymes. The comparison was based on their absorbance rates. The experiment has shown that those samples that had a higher concentration of enzymes, respectively showed a higher percent of absorption rate – the difference is significant, 95% against 24%. This proves that a higher production rate is ensured by a higher concentration of enzymes.

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The introduction section is one of the last parts that you should write. In biology lab reports, the introduction is like a framework for the whole text and it shows that you fully understood the topic and the purpose of the experiment.
In this part, it is helpful to jot down facts and references and you can also use lecture notes. The introduction should not be too long and it has to contain the specified terminology related to the subject. It is usually not allowed to prove something in the introduction – you should only describe, not demonstrate the truth. You can also find a sample biology lab report to see how this section has to be written. An example is provided below.


It is a proven fact that enzymes are catalytic proteins whose function is to accelerate reactions by means of lowering activation energy (Campbell, 1996). In the experiment, we studied the rate of reaction between oxygen and catechol and their ability to form benzoquinone in a condition where the concentration of enzymes (catecholase) was different. We supposed that the concentration of enzymes directly influences reaction rates.

Materials and Methods

Students should write this section at the beginning and have it contain an explanation of the study that was conducted. In this part, you describe the whole procedure you did in order to help other students do this experiment in the future. It is allowed to use diagrams in this part. You need to write about the measurement methods and techniques, indicate all sizes, quantify things, etc.

Be accurate and careful in this section!


Preparing an extract of catecholase, we used a washed, skinned, and diced potato and we used a scale in order to get precisely 30 grams of potato. We also poured 150 ml of water into a beaker. We added water to the potato, removed the cover of a kitchen blender, and added both ingredients to a blender, we then put the cover back on and pressed the start button, noting the time. Then we pushed the button again to stop the blender. We used four layers of cheesecloth to filter the result and then we stored the obtained extract in a clean, closed container.


Here you need to present the findings to your audience in a clear, orderly way. You can write this part almost at the beginning. The facts here could appear like a story that you want to tell your readers. Don’t use too many words – include only important information that should be concisely written. Organize all your facts in a logical fashion and do not interpret your results in this section. You also don’t need to describe your methods here. Here you need to figure out the trends that follow your facts which you have learned during your experiment – try to call the reader’s attention to trends or patterns.


Experimental group

Protein concentration (micg/micl)

Absorbance (595nm)














After you have written the results, start to write a discussion. Here you have to write about your ideas after the experiment was conducted and inform your readers about your thoughts that are based on the results of the experiment. There should be a comparison of your results and your expected findings.

Write in this section some information about whether your results supported your thesis or there were variances. Your interpretation must be original and you can write from being specific to general and do not prove or disprove your hypothesis. Add some original ideas to your interpretation and end with a concluding statement.


Proteins catalyze reactions by bringing down the activation energy of the reaction; catecholase, an enzyme discovered in potato, changes catechol to benzoquinone with the presence of oxygen. We expected that more benzoquinone would be shaped by the presence of a more noteworthy measure of catecholase. This theory was proven by the outcomes acquired.

Catalysts are influenced by the environment – the level of pH present in the environment is one factor that can modify chemicals while the rate at which the compound shape item is moderated or accelerated depending on how near to the standard the environment is.

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Citing sources

The last part of your work is to cite the sourced that you have used in order to reference them in the future.

Use internal citations in this section. You can find the instructions about how to cite sources in a lab report and ask your teacher about a citation format that he or she requires; note that all references must be included at the end of your text: books, articles, lab manuals, and other sources.


  • In-text – (Author, year);
  • Literature Cited page – Author last name and initials, year, the title of an article or chapter, the title of a book, journal, website or another source, editor’s name, publisher, the city where published, pages.

Proofreading Your Biology Lab Report

After you have written your work, check it carefully to find any grammar or spelling mistakes in it. Ensure that you followed the required format and style and cited all the sources you had used. Do not forget to prepare your title page following any special requirements and use a reasonable font for your work. Ensure margins are also according to the formatting style that your instructor requires. Include page numbers, additional information, your full name, and the headings to your sections.

Lab reports are individual assignments – you may have a partner while you conduct experiments, but you always need to write the paper on your own. Do not plagiarize other’s work. You need to understand your material well and you also must understand which format and style of work you need. However, if you still don’t know how to write a biology lab report, our custom lab report writing service helps students prepare lab reports. Need a lab report? You can get some help from our professional writers and order a paper on biology. Just ask us “write my lab report“. Our prices are quite cheap and only highly qualified professionals work with us, thus, you will be satisfied with our work. We prove that your report won’t contain any plagiarism. If you want to order a report, just contact us and you will receive all the details from our support team.

We think that this article will help you in writing your academic work!


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