Science project

Length of object = length of magnified object ÷ magnification

For example, if a specimen appeared 10mm in length under a microscope with a magnification of 1,000 times, the calculation of the actual length would be: Length of object = 10 ÷ 1000 = 0.01 mm.To calculate magnification you have to do:  length of magnified object divided by length of object= Magnification

Light microscopes are useful in the study of cell biology because they allow you to see things that you can not see with the naked eye. They work by focusing light rays to magnify objects, in this case cells, up to x1500s. They help us learn about certain cells and how they work.

 This is an onion cell under a light microscope.

Magnification and resolution

Magnification is when you enhance the size of an microscopic object for example an onion cell to make it visible to see using a microscope. Resolution is when you have the ability to distinguish two similar objects in this case cells.

Describe the advantages and disadvantages of using a light and electron microscope.

Scanning electron micrograph (SEM) of various Pollen. Public domain image reference: Dartmouth Electron Microscope Facility, Dartmouth College

http://www.microbehunter.com/electron-microscopes-vs-optical-light-microscopes/ (For next lesson reseach)

 The difference between prokryotes and eukaryotes cells is that eukaryotes cells have a nucleus organelles and linear DNA. However prokryotes have a nucleoid and circular DNA. They do however share some similar features they both have cell membranes and ribosomes.

The difference between a nucleoid and a nucleus is that that a nucleoid is just a spot in the cell and is not separated from the rest of the cytoplasm. But, a Nucleus is a membrane bound organelle which means it is organized and is structured inside the cell.

Muhsin Ahmed- Helped with the previous paragraph.