1. LECTURE: CRITERIA FOR PROKARYOTES & EUKARYOTES
MICROBIOLOGY - ALCAMO
LECTURE: CRITERIA FOR PROKARYOTES & EUKARYOTES

2. Introduction - Cells All living organisms have cells
Basic unit of structure
Large organisms – many cells
Cells are organized into:
Tissues
Organs
Systems

3. MICROORGANISMS
One or a few cells take care of all functions

4. CELL TYPES -Two Types: Prokaryotes- _____________________________
Eukaryotes-

6. DEFINITIONS -Prokaryotic Cell: No nuclear membrane
No other internal membrane
Only has a cell membrane

7. .

8. Eukaryotic Cell:
Has a nuclear membrane
Has other membrane bound organelles

9. PROKARYOTES - VERY SMALL CELLS
-CELL WALL-SHAPE, PROTECTION, BUT VERY THIN
-CELL MEMBRANE-LINES CELL WALL, REGULATES MOLECULAR TRAFFIC
-NUCLEOID-WHEREVER SINGLE STRAND DNA

11. .
-CYTOPLASM-SOUP OF CHEMICALS, INCLLUDING RIBOSOMES, FOR ALL CELL ACTIVITIES
-FLAGELLA-(IF) SINGLE STRAND PROTEIN

13. EUKARYOTE – LARGER CELLS
-CELL WALL-SHAPE, PROTECTION,
3 LAYERS THICK
-CELL MEMBRANE-LINES CELL WALL, REGULATES MOLECULAR TRAFFIC
-NUCLEUS-DOUBLE STRAND DNA, ORGANIZED INTO CHROMOSOMES, RNA, INSIDE NUCLEAR MEMBRANE

15. .
-CYTOPLASM-SOUP OF CHEMICALS FOR CELL ACTIVITIES, MEMBRANOUS ORGANELLES: GOLGI BODIES, MITOCHONDRIA, VACUOLES, CHLOROPLASTS IF PHOTOSYNTHETIC
-FLAGELLA-(IF) CABLE-LIKE, 9/2 PROTEIN STRANDS

16. 4. CLASSIFICATION OF ORGANISMS
-EUKARYOTES-ALL MULTICELLULAR ORGANISMS AND UNICELLULAR ORGANISMS(EXCEPT TWO) EX: MAMMALS, FISH, PLANTS, FUNGI, ALGAE AND PROTOZOA
-PROKARYOTES-ONLY BACTERIA AND CYANOBACTERIA