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Flashcards in microbiology basics Deck (15):
1

medically important cellar organisms (4)

bacteria (prokaryotic)
parasites (eukaryotic)
fungi (eukaryotic)
protozoa (eukaryotic)

2

medically important acellular organisms

Viruses
prions

3

prokaryotes
4 structural components

size

1. Genome- nuclei
2. Robosomes (70S)- dark staining, site of protein synthesis
3. Cell membrane or cytoplasmic membrane
4. no organelles
.2-10 um usually unicellular

4

prokaryotes
describe function of
Flagellum
Mesome

Flagellum- propellors made of protein units
Mesome-v esicles formed by invagination of plasma membrane

5

structure of eukaryotes (6)
size (2)

1. nucleus
2. nucleous
3. mitochondria
4. ribosomes
5. endoplasmic rectilunum
6. Golgi
10-100Um usually multicellular

6

nucleus

enclosedbyanuclearmembranewith
double-stranded DNA

7

Nucleolus

production&maturationofribosomes

8

Mitochondria

functionis
to convert organic materials into E via the process of oxidative phosphorylation;

9

Ribosomes

protein synthesis

10

Endoplasmicreticulum

siteoftranslation,folding,andtransportof
proteins that are to become part of the cell membrane, or proteins that
are to be secreted

11

Golgiapparatus

entraldeliverysystemforthecell,primary function is to process & sort proteins targeted to the plasma membrane

12

Cytoskeleton

maintains cell shape and plays important role in both intra-cellular transport and cell division

13

Vacuoles

membrane-bounded compartments within some eukaryotic cells; serve a variety of secretory, excretory, and storage functions

14

Centrioles

important in cell division

15

Mitosis/Meiosis

Cell division in eucaryotes, occurs in sexual reproduction

Assexual reproduction