Lecture 3: Structure of Microbial Cells Flashcards
1
Q
what are the 4 universal traits of cells?
A
- structure
- metabolism
- growth
- evolution
2
Q
how did the tree of life arise?
A
from comparing rRNA sequences
3
Q
do viruses have rRNA?
A
no
4
Q
what gave rise to Eukarya?
A
Asgard (Archaea)
5
Q
how do you classify cellular life?
A
Genus, Species (species are italicized)
6
Q
What is the endosymbiotic theory?
A
- Ancestral cell gave rise to endomembrane components
- Ancestral eukaryote consumed aerobic bacteria & evolved into mitochondria
- Eukaryote consumed photosynthetic bacteria & evolved into chloroplasts
7
Q
what do prokaryotes uses as energy storage?
A
glycogen
8
Q
what do gas vesicles do?
A
adjust buoyancy
9
Q
what do magnetosomes do?
A
orient towards magnetic pole
10
Q
what shape are coccus cells?
A
round
11
Q
what shape is streptobacillius?
A
chain of rods
12
Q
structure of streptococcus
A
chain of cocci
13
Q
structure of staphlyococcus
A
cluster of cocci
14
Q
Bacillius structure
A
single rod
15
Q
Are streptococcus & staphylococcus closely related?
A
no
