This post first appeared on the Maths4Biosceinces Blog and is about the latest update of the Maths4Biosciences website and I thought it was worth reposting here:
Say hello to the new maths4biosciences site
I have just released a major update to the maths4biosciences website.
So, what is new?
Well, there are now two sections available – Simple and Advanced.
In the Simple section you will find questions on:
Percentage solutions – weight by weight (w/w), volume by volume (v/v) and weight by volume (w/v) – questions include calculating the number of grams or volumes needed and the percentage of solutions
Moles – how many moles is this number of grams, and how many grams is this number of moles
Molarity – how many grams do you need, and what is the molarity of a solution made using this many grams made up to this volume
Logs – logs to numbers and numbers to logs
Dilutions – molar and concentrations as mg/ml
And units – converting between different weights, concentrations and volumes
In the Advanced section that are questions on:
Weight by volume dilutions – calculating a dilution to its new molarity, concentration expressed as weight by volume and as a percentage concentration
Standard Curve – using data from an experiment to produce a standard curve and then determine the unknown concentration of a sample
Spectrophotometry – using the Beer-Lambert Law to calculate concentration, absorbance and the extinction coefficient
Percentages – converting to other expressions of concentration
Percentage solution dilutions – calculating a dilution to its new molarity, concentration expressed as weight by volume and as a percentage concentration
PCR – calculating how much sterile water is needed to make up a PCR to the correct volume
Molar dilutions – calculating a dilution to its new molarity, concentration expressed as weight by volume and as a percentage concentration
Molar calculations – converting to different expressions of concentration
mg/ml calculations – converting to other expressions of concentration
Enzyme kinetics – calculating the Km (the Michaelis constant), Vmax and the activity of the enzyme for a given set of enzyme data
ELISA – determining the unknown concentration of three samples on an ELISA plate
Degeneracy – how many different DNA molecules could encode for a protein sequence
Each time you ask for a question, the site will generate a new version of the question, and so you should never get the same question twice.
The site is loaded with help and feedback that explains how to calculate the correct result. The feedback also comes with video demonstrations of how to perform the calculations.