Albert Teen YOU ARE LEARNING:  Types of Data in Microscopy  # Types of Data in Microscopy ### Types of Data in Microscopy

You can use microscope images to collect data like numbers, size and estimations.

1

This is a magnified view of the lower surface of a leaf

We can use this image to record different kinds of data. 2

What does the word "data" mean?

A) Video B) Image C) Information  1

Numbers

We can use images from microscopes to count things. 2

How many cells can you count in this view?  1

Sizes

We can use images from microscopes to measure things. 2

How long are the guard cells in the magnified image?  3

How much has the image been magnified?  4

So the image of the guard cell is $6 \space mm$ after it has been magnified $\times 200$. How big is the real guard cell in $mm$?  5

The real guard cell is $0.03 \space mm$ long. How much is that in micrometres, $\mu m$?  6

So you can use measurements of size in the image to work out how big the real object is

$real \space object \space size = \frac{image \space size}{magnification}$ In this example, the real guard cell is $30 \space \mu m$ long. 1

Estimations

From the size of one thing in the image, we can estimate the size of another thing. 2

The real guard cell is $30 \mu m$ long, so how wide is it approximately?

A) $40 \mu m$ B) $20\mu m$ C) $10 \mu m$  1

Summary!

You can use microscope images to collect different kinds of data. 2

For example

You can collect data about numbers and sizes which you can use to also give estimates. 