Tuesday, February 23, 2010

Why are the mitochondrion and chloroplast designed the way they are?



These two organelles, mitochondrion and chloroplast are very important. The mitochondria are found in all sorts of different cells but the chloroplasts are only found in plants and photosynthetic protests.

The chloroplast uses energy from the sun to make carbon dioxide into glucose, an energy rich sugar. While the mitochondria gets the energy within glucose and makes a molecule called ATP.

The design of the chloroplast and the mitochondria are the same. Although their inner membrane is slightly different both these organelles were made with efficiency in mind.

Monday, February 15, 2010

Cell Power Point :)

Anton van Leeuwenhoek was the first to look at water under a microscope. He invented the light microscope. Robert Hooke studied cork, the dead cell of oak. The electron microscope was invented in 1940. There is two types of electron microscopes, the scanning and the transmission. The scanning electron microscope is used to see 3 dimensional objects. The transmission electron microscope is used to see what is contained within a cell. There are two basic types of cells, the prokaryotic, no membrane and the eukarytic, membrane-bound.