Biology 198 Exam 3 Practice Questions and Correct Answers

Cells are grouped into 2 categories: Prokaryotic and Eurkaryotic Animal and Plant cells are Eukaryotic Bacteria are prokaryotes An instrument that magnifies an object microscope Photographs of cells taken with a microscope are called Micrographs What type of microscope is used in our lab? Light microscope 2 parameters that are important in microscopy are: magnification and resolving power The process of enlarging an object in appearance Magnification The ability of a microscope to distinguish 2 adjacent structures as separate (higher resolution and better clarity) Resolving Power Microscopes used to gain a better understanding of cellular structure and function electron microscope Use a beam of electrons instead of a beam of light (higher magnification, more detail, provides higher resolving power Electron Microscope can living cells be viewed with an electron microscope no a type of single celled organism protista 3 domains of life Bacteria, Archaea, Eukarya What share 4 common components: plasma membrane, cytoplasm, DNA, and ribosomes Cells Outer layer covering that separates the cell's interior from its surrounding environment plasma membrane