Questions tagged [units]

Units commonly encountered in biology: their definitions, usage, conversion.

Filter by
Sorted by
Tagged with
0
votes
1answer
33 views

Question on kilobase - packaging of genomic material in viruses

I have been looking up some information of SARS. Wikipedia says it is 29.7kb in length while 1kb is around 300nm. However, the microscope image on wiki shows the virus size <100nm. It doesn't make ...
4
votes
2answers
3k views

Definition of a Katal (unit of enzyme activity)

I am very confused about what one 'Katal' actually is. From Wikipedia, "The katal is not used to express the rate of a reaction; that is expressed in units of concentration per second (or moles per ...
3
votes
1answer
1k views

What is an inclusion forming unit?

What is inclusion forming unit load? I found it when reading this article. What does this measure and what information can be gained form it? Does this represent the amount of bacteria within a ...
2
votes
1answer
684 views

Where do I purchase this Trypsin?

I am currently on the lookout for Trypsin, but I have some trouble finding something that is fairly cheap, ships to Europe and is equivalent to this Trypsin: http://www.emsdiasum.com/microscopy/...
2
votes
1answer
263 views

how to quantify toxicity

When going through this link, Table 1, what are the numbers mentioned there? How is one quantifying toxicity?
2
votes
0answers
630 views

Convert flux value in nmol/min/mg protein to nmol/min/cell?

This is a question about unit conversion. I found an experimental measurement of the saturation uptake of glucose in yeast: $$V_\textrm{max} \approx 650 \textrm{nmol}/\textrm{min}/\textrm{mg protein}$...