A Tour of Cell Biology Presented by Markowski

Today’s Goals! § Introduction to cell biology § To be introduced to the differences between bacterial, animal and plant cells § Gain the ability to identify characteristics of all three types of cells

Introduction to Living Cell Types § Living cells divided into two types - prokaryotic and eukaryotic § Division based on internal complexity § Prokaryotic: Pre-nucleus § § § Simple Small No compartmentalization § Eukaryotic: true nucleus § Complex § Larger § Highly compartmentalized § The common feature that links all cells is the production of PROTEINS § These are required for the growth, development and maintenance of all cells

Prokaryotic or Bacterial Cells • • • Nucleoid DNA Ribosomes Cell wall Plasma membrane • Capsule • Flagella • Pili

Cool Bacterial Growth Video! E Coli Movie

Eukaryotic: Plant Cells § § § Nucleus Nucleolus Endoplasmic Reticulum § § § Cytoskeleton Golgi Mitochondrion § Vacuole § Cell Membrane § Cell Wall § Chloroplast

Eukaryotic: Animal Cells § Nucleus § Nucleolus § Endoplasmic Reticulum § Golgi § Cytoskeleton § Cytosol § Mitochondrion § Secretory Vesicle § Lysosome § Vacuole § Cell Membrane

The Cell: A Busy Factory § • Copyright 1996 Shawn Glynn. A cell can

Universal Organelles § For both prokaryotic and eukaryotic § Nucleoid or Nucleus with DNA § Cell membrane § Ribosomes § Cytosol § For animal and plant cells only (eukaryotic) § All but cell wall and chloroplasts § Only in plant cells, why? § Structure and photosynthesis

Implications / Significance § Differences between the cells allow all of us to have specialized function § Bacteria: invade and multiply rapidly! § Plants: strength and photosynthesis § Humans: the most complex multicellular organisms on earth!

Conclusion § 2 very distinct classes of cells § Prokaryotic § Bacteria § Eukaryotic § Plant § Animal § Fun Cell Quiz! We never knew cells could be so interesting!

Works Cited § Excel evaluation of websites