Gridsquare volumes
We just established that the hemocytometer has gridcells with different volumes.
On the figure below, you should be able to find (since they are color coded) a large-size grid cell, two different medium-sized grid cells, and a tiny-sized gridcell.
It's important to know exactly what those volumes of all these different gridcells are. And by "know", we mean "be able to easily calculate". You can do this because all of the lines are evenly spaced. So, using some simple division, you should be able to figure out the size of each dimension. (Be careful though, some areas are divided into 3 sections, some into 4 sections, and some into 5 sections).
For example, the red cell below is 1/3 of the total width, or 1 mm wide. And the light green cell is 1/4 of 1 mm, or 0.25 mm.
Remember, the entire grid is 3mm x 3mm, and the depth is always 0.1 mm. Can you calculate all of the volumes?
| cell | dimensions of the cell | volume of the cell |
|---|---|---|
| entire grid | mm3 | |
| large square (red) | mm3 | |
| outer medium square (green) | mm3 | |
| inner medium square (yellow) | mm3 | |
| small square (blue) | mm3 |
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