Bacteria Reproduction: Not quite
the same!
What type of cells are bacteria?
Prokaryotic cells:
Single celled
 Have a single strand of DNA and some
plasmids
 Do Not go through Mitosis or Meiosis

Prokaryotic Reproduction

http://bugs.bio.usyd.edu.au/learning/resources/CAL/Micr
oconcepts/moviePages/bacteriaDivision.html

http://www.ryancshaw.com/Files/micro/Animations/Bact
erialGrowth/PLAY_bacterial_growth.html
How do Bacteria Reproduce
asexually?

They reproduce asexually through binary
fission.
Bacterial Conjugation - Transfer of a
Plasmid (Primitive Sexual
Reproduction)
http://highered.mcgrawhill.com/sites/9834092339/student_view0/chapter28/bacterial_c
onjugation_-_transfer_of_a_plasmid.html
How do bacteria reproduce
sexually?

They reproduce sexually through
conjugation.
How is a eukaryotic cell different
from a prokaryotic cell when
considering the heredity material?

Prokaryotic cells have a single strand of
DNA, not chromosomes. Prokaryotic
cells DO NOT go through mitosis or
meiosis!
How do viruses reproduce?
Viruses:

What viruses are NOT!
Considered to be alive
 Able to metabolize on their own
 Live outside of a specific host cell
 Reproduce on their own


In other words they are not LIVING!
Bacteriophage

http://biology.about.com/od/virology/a/aa11108a.htm

http://highered.mcgrawhill.com/sites/9834092339/student_view0/chapter28/life_cycle_of_t2_phage.html

How are viruses different from both
prokaryotic cells and eukaryotic cells?

Viruses can NOT reproduce on their
own. They must highjack a living cell!

Prokaryotic and eukaryotic cells
reproduce on their own.
How do viruses reproduce?

They attach, insert heredity material,
highjack cell, produce more viruses and
break out of cell.
How do viruses reproduce?

Lytic Stage: Active
How do viruses reproduce?

Lysogenic Stage: Latent or Hidden
Review:

How do bacteria reproduce asexually?

How do bacteria reproduce sexually?

What is the difference between a
prokaryotic cell and eukaryotic cells?
Review:

How are viruses different from both
prokaryotic cells and eukaryotic cells?

How do viruses reproduce?
How do bacteria reproduce
asexually?

By replicating (copying) the single strand
of DNA, cell grows and then divides into
two cells. This is called binary fission.
How do bacteria reproduce
sexually?
 Bacteria
attach to each other by
their pili and exchange plasmid
material.
What is the difference between a prokaryotic
cell and eukaryotic cells?
 Prokaryotic
cells do NOT go
through the processes mitosis or
meiosis!
How are viruses different from both
prokaryotic cells and eukaryotic cells?

Viruses are NOT cells, they are not
considered living organisms. They can
NOT reproduce on their own. They
need a specific living host in order to
reproduce.
How do viruses reproduce?

A. Attach to a host cell

B. Inject hereditary material into host cell

C. Highjack the host cell making it
reproduce more viral material

D. Reassemble viruses and lysis from the
host cell