null
US
Sign In
Sign Up for Free
Sign Up
We have detected that Javascript is not enabled in your browser. The dynamic nature of our site means that Javascript must be enabled to function properly. Please read our
terms and conditions
for more information.
Next up
Copy and Edit
You need to log in to complete this action!
Register for Free
4755015
Structure of prokaryotes
Description
Heath Science CELS191 Mind Map on Structure of prokaryotes, created by Vinh Tran on 05/03/2016.
No tags specified
cels191
heath science
Mind Map by
Vinh Tran
, updated more than 1 year ago
More
Less
Created by
Vinh Tran
over 8 years ago
54
1
0
Resource summary
Structure of prokaryotes
features of a prokaryotic cell
Flagella
allow for the movement of the cell
clockwise rotation
cell tumbles
anticlockwise rotation
develops movement for cell
Allows for directional movement toward or away (Chemotaxis)
Frimbrie
The hairs of the cell
Allows the cell to stick to surfaces/adohernce e.g hard surfaces
Allows for Genetic transfer from one bacterium to another
Capsule
slimy layer on the cells surface
carbohydrate envelope of glycocalx
prevents the cell/organism to becoming dehydrated/dessicatted in non aqueous environments
resistance to phagocytosis (bacteria being indigested)
Ribosomes (Prokaryotic cell)
50% smaller than ribosomes found in eurkarotic cells
allows for the synthesis of proteins
target site for some antibiotics to inhibit protein synthesis of the cell and therefore kill it
Nucleoid
Large strands of DNA (loop) not enclosed by a nuclear membrane
Plasmid
Small loops of extrachromosomal DNA
important in contributing extracelluar DNA in bacterium
V; Virulence (Can make organism cause diseases)
R; Can cause bacterium to become resistant to antibiotics
B; Bacteriocin (natural antibiotic produced by cell)
F; Fetility (transfer of genes)
Endospores
cells form spores during unfavourable conditions
condensation of nuclear material such as DNA
material is surrounded by two coats of protein
allows DNA to resits damage caused by Heat, Chemicals and desiccation
Establishing the difference between Gram Positive (+) and Gram negative (-)
Gram Postive
Thick outer layer of polytidglycon
Gram Negative
Thin layer of peptidoglycan
surrounded by two membranes. Outer Membrane and Plasma Membrane
peptidoglycan is a protein only found in bacteria therefore is a good indicator in determining Gram Positive and Negative bacteria
Gram Staining
the method used to determine Gram positive and negative bacteria
Use of two stains
treated with iodine to fuse the proteins of the peptidoglycan
colour of stain identifies type bacteria (positive or negative)
violet = positive
pink = negative
Media attachments
9eae2e8a-afa6-42d0-bdc7-daccaa04b1da (image/png)
e4628cfb-f4d0-4305-97b4-b54ed7a9a77d (image/jpg)
Show full summary
Hide full summary
Want to create your own
Mind Maps
for
free
with GoConqr?
Learn more
.
Similar
L5 Structure and Function of viruses
Mer Scott
L3 Molecular Composition of Cells
Mer Scott
L6 Cell Anatomy: Membrane bound organelles
Mer Scott
L7 The Endomembrane System
Mer Scott
L8 The Cytoskeleton, ECM, and Cellular Junctions (Cell Shape Regulation)
Mer Scott
L9 Energy in the Cell
Mer Scott
L2 Basics of Cell Biology
Mer Scott
L10 ATP and Redox Reactions
Mer Scott
Spanish: Talking About Everyday Things
Niat Habtemariam
English Grammatical Terminology
Fionnghuala Malone
The Cold War: An Overview_2
Andrea Leyden
Browse Library