microbiology basics

Question 1

medically important cellar organisms (4)

Answer 1

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

Question 2

medically important acellular organisms

Answer 2

Viruses

prions

Question 3

prokaryotes
4 structural components

size

Answer 3

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

Question 4

prokaryotes
describe function of
Flagellum
Mesome

Answer 4

Flagellum- propellors made of protein units

Mesome-v esicles formed by invagination of plasma membrane

Question 5

structure of eukaryotes (6)

size (2)

Answer 5

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

Question 6

nucleus

Answer 6

enclosedbyanuclearmembranewith

double-stranded DNA

Question 7

Nucleolus

Answer 7

production&maturationofribosomes

Question 8

Mitochondria

Answer 8

functionis

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

Question 9

Ribosomes

Answer 9

protein synthesis

Question 10

Endoplasmicreticulum

Answer 10

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

Question 11

Golgiapparatus

Answer 11

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

Question 12

Cytoskeleton

Answer 12

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

Question 13

Vacuoles

Answer 13

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

Question 14

Centrioles

Answer 14

important in cell division

Question 15

Mitosis/Meiosis

Answer 15

Cell division in eucaryotes, occurs in sexual reproduction

Assexual reproduction