main characteristics (all) Flashcards
1
Q
- cell wall similar to gram-negative bacteria
with peptidoglycan layer and outer membrane - intermediate between gram-positive and gram-negative bacteriaJun
A
cyanobacteria cell
2
Q
peptidoglycan layer
A
- Cyanobacteria
- gives protection + defines morphology
3
Q
surface-layer or S-layer
A
- Cyoanobacteria
- further layer immediately after outer membrane
4
Q
JPC
A
- Cyanobacteria
- Junction Pore Complex
5
Q
EPS
A
- Cyanobacteria
- extracellular polysaccharides material
(surrounds cells) - composed of mostly glucose
6
Q
sheath
A
- type of exopolysaccharides surrounding cyanobacterial cells
- EPS
- based on thickness and structure
7
Q
capsule
A
- type of exopolysaccharides surrounding cyanobacterial cells
- EPS
- based on thickness and structure
8
Q
slime
A
- type of exopolysaccharides surrounding cyanobacterial cells
- EPS
- based on thickness and structure
9
Q
scytonemin
A
- characteristic of some Cyanobacteria species
- particular pigments that can be pressing within EPS
- effective in cell protection vom UV
found in
- planktonic populations
- mats-forming cyanobacteria
10
Q
nucleoid / nucleoplasm
A
- in Cyanobacteria because they have no real nucleus
, region of genome
11
Q
carboxysomes
A
- Cyanobacteria
- for carbon dioxide fixation
12
Q
akinetes
A
- Caynobacteria
- can accumulate and store various essential material for survival of many years in unfavored environmental conditions
13
Q
aerotopes
A
- Cyanobacteria
- aggregation of gas vesicles
- for movement
14
Q
granules
A
- where storage products (starch) is stored
15
Q
pyrenoid
A
- Rhodophyta
- structure in center of chloroplast
- carries out photosynthesis
16
Q
galactans
A
- Rhodophyta
- contianed in mucilaginous material of amorphous part
17
Q
ficocolloids
A
- Rhodophyta
- galactans are compounds of ficocolloids
18
Q
pit-connections
A
- Rhodophyta
- to distinguish between Florideophycaceae and Bangiophycageae
- 7 different types of plug-caps to distinguish between orders
- absence of membranes + thickness of membranes
19
Q
secondary pit-connections
A
- Rhodophyta
- composed of different filaments
20
Q
uniaxial and multiaxial
A
- Rhodophyta –> Florideophycaceae or Bangiales?
- thalli structure
21
Q
cortex
A
- Rhodophyta
- outer part of pseudoparenchymatic thallus
22
Q
medulla
A
- Rhodophyta
- innermost part of pseudoparenchymatic thallus
23
Q
holdfast
A
- for attachment
- discoid structure
24
Q
A
25
Q
A
