... • Critical to nutrient cycling as decomposers
• Some cause disease
• Vast majority are harmless, but half of all human diseases
are caused by bacteria
CSIM2.2 - toddgreen
... An organism is classified as any living thing, which includes both plants and animals
All organisms are made up of one or more cells
Organisms can be classified according to a fundamental structural aspect of their cell or cells:
o Eukaryotes are organisms whose cells contain nuclei
o Prokaryotes ar ...
... Direct (skin contact, blood, and other body
Insects and other hosts such as deer tick
microbio 1-3 [4-20
... 20. What protein causes transcription to cease when its product is no longer needed? What RNA
sequences have a similar purpose in the regulation of biosynthetic enzymes?
The repressor is a protein that stops transcription of an unecessary gene by binding to the
operator of the operon
[the scribe r ...
Think big! - Division of Archaea Biology and Ecogenomics
... the scientific paper together with PhD student Nika Pende.
But what about the tiny little friends of the closely related E. dianeae worm? Here,
the filamentous bacteria are attached to the worm host with only one end, as if to
form a fur (Fig. 2). How long can one bacterium, that is a fur hair be? O ...
... Immune Response in Humans.
• I.S. fights off
• Our bodies
• Antibodies lock
on to the
active site or
Lecture 1 Thursday Jan. 4, 2001
... even groups of them or their physiology, ecology or
impacts (e.g., microbial ecology, human diseases) – we
will cover them today as part of the evolution leading
• Text covers them well at an appropriate level in just 25
pp. Be sure to know the “Checkpoints” (1st page) and
“Summary” plus ...
A Differential Aeration Cell consists of an oxygen concentration cell
... A Differential Aeration Cell consists of an oxygen concentration cell, the result of a potential difference caused by
different amounts of oxygen dissolved at two locations.
A schematic of pit initiation and tubercule formation due to an oxygen
concentration cell under a biological deposit.
... LAST TEN YEARS. THE EMERGENCE OF
CARBAPENEMASE-PRODUCING BACTERIA IS OF
PARTICULAR CONCERN AS IT LEAVES VERY FEW
THERAPEUTIC OPTIONS FOR INFECTIONS WITH THESE
TYPES OF BACTERIA.
Lecture 10 Bacterial morphology – structure and arrangement of
... genus. Later, largest cells of the colorless sulfur bacteria, Thiomargarita namibiensis,
with a diameter of 750 m was discovered from the
Namibian coast is considered as BIG bacteria.
Shape: The shape of the bacterium is governed by
rigid cell wall. Typical bacterial cells are spherical
(Cocci and C ...
Bio 504 Name: Bacteria and Archaea Complete the puzzle to find
... Archaea that live in habitats with oxygen.
Prokaryotic cells that have cell walls made of peptidoglycan.
Asexual reproduction in prokaryotes.
Bacteria with a circular shape.
Method of reproduction in prokaryotes during which DNA is exchanged.
A dormant bacterial cell resistant t ...
Bacterial morphological plasticity
Bacterial morphological plasticity refers to evolutionary changes in the shape and size of bacterial cells. As bacteria evolve, morphology changes have to be made to maintain the consistency of the cell. However, this consistency could be affected in some circumstances (such as environmental stress) and changes in bacterial shape and size, but specially the transformation into filamentous organisms have been recently showed. These are survival strategies that affect the bacterial normal physiology in response for instance to innate immune response, predator sensing, quorum sensing and antimicrobial signs.