Cells

Cells

1. Discovered by Robert Hooke

   • Discovered a plant cell under single lens microscope by calling the mini blocks "cells"

2. The different types of microscopes

   • light compound microscope-$, 1000x mag. Uses light to see, 400nm resolution
   • transmission electron Microscope-$$$, 10,000,000x mag. 0.2 nm res. uses beam of electrons to see dead specimens
     • scanning electron microscope-$,30,000 mag. 10 nm a forced beam of high energy electrons

3. cell structure

   • nucleus contains DNA which has coded instructions for making proteins and running the cell
   • Vacuoles and Vesicles store materials
   • Ribosomes-creates p[rotein
     • Rough and soft E.R assembles proteins and lipids
       • Golgi Apparutus sorts and packages proteins for storage and transportation
   • chloroplasts-convert solar energy to chemical energy to store food