micro lecture chapter 5 (1) Flashcards
Single-celled Prokaryotes.
Kingdom Monera: description
Mostly single-celled Eukaryotes.
Kingdom Protista: description
Simple, mostly multicellular Eukaryotes.
Kingdom Fungi: description
Multicellular, photosynthetic Eukaryotes.
Kingdom Plantae: description
Complex, multicellular Eukaryotes.
Kingdom Animalia: description
Capsules prevent desiccation and phagocytosis
from happening to bacteria. Capsules are made of
a substance called glycocalyx.
Capsules: prevent, made of
Streptococcus mutans has a capsule and is the
primary cause of dental plaque in the mouth.
Klebsiella pneumoniae has a capsule and can
cause “walking pneumonia”.
Capsules: 2 examples
Flagella function in motility or movement.
Flagella are found on 50% of Bacillus species of bacteria
and the sub-group spirillum.
Flagella: function, which bacteria
Axial filaments function in motility or movement.
They are found only in the sub-group spirochetes.
Axial filaments: function, which bacteria
Fimbriae function in adhesion, or sticking to our cells.
Two examples: 1) E. coli can use fimbriae to stick to the cells
that line the bladder. 2) Neisseria gonorrhoeae can use
fimbriae to stick to the cells that line the urethra.
Fimbriae: function, 2 examples
Peptidoglycan: 60-80%
Teichoic acid: 20-40%
G+ cell wall structure
Outer membrane: 80-90%
Peptidoglycan: 10-20%
G- cell wall structure
Bacterial:
Binary fission
-Copy their DNA
-Build more plasma membrane and cell wall
down the midline
-Divide in half
Viral
-Bind to a receptor on our cell
-Enter our cell
-Trick our cell in to making virus copies
Discussion question:
bacterial replication vs. viral replication
