4. Describe the appendages of bacterial cells.
a. How motility is accomplished in
bacterial cells.
b. What are pilin and the role of pili and
fimbriae.
c. Explain the structure of flagella.
Bacterial cells couple the process of transcription and
translation. In eukaryotic cells, the process of transcription and
translation are uncoupled or occur separately. Provide explanations
as to why bacterial cells can couple the process of transcription
and translation while in eukaryotic cells, the process is
separated.
Cyanobacteria in a low nitrogen environment have
photosynthesizing, vegetative cells and oxygen-sensitive
heterocysts linked together. Which of the following adaptations to
the heterocyst allow(s) it to be in this high oxygen
environment?
a. Thick cell walls
b. Oxygen scavenging proteins
c. Gas vesicles
d. A and B
e. B and C
When the pathogenic E. coli reaches the gut, the toxin operon is
quickly transcribed and multiple proteins translated at once. What
helps produce the large number of proteins to...
Natural killer cells target:
infected cells that have lost MHC I surface proteins
B.
bacterial cells that are coated with complement
C.
infected cells bound with antibody
D.
cancerous cells
E.
Two of the above are correct
Compare the typical lifetimes of mRNA and proteins in a
bacterial, yeast and human cells and describe how these lifetimes
interact with the length of the cell cycle in these different
organisms.
what would be different for bacterial cells that happened to be
inside the agar and those that were on top of the agar in plates
from the pour plate method? explain.