Group 4 : MEDI205 Human Health and Disease Processes by Bill Ashraf https://padlet.com/billash011/plt0rw8azhhh Basic Bacteriology - An Overview of Quorum sensing. en-us 2019-02-28 06:20:11 UTC 2025-11-13 08:27:16 UTC hello@padlet.com Bacterial Quorum Sensing https://padlet.com/billash011/plt0rw8azhhh/wish/343587669 Quorum sensing bacteria produce and release chemical signal molecules called autoinducers that increase in concentration as a function of cell density.

Bacteria: multi-cellular?]]> 2019-03-21 00:33:29 UTC https://padlet.com/billash011/plt0rw8azhhh/wish/343587669 'Chemical Language': Hawaiian Bobtail Squid https://padlet.com/billash011/plt0rw8azhhh/wish/343588349 Has a bacteria-filled 'light organ': signal producing protein releases peptides into the environment which, in turn, a signal receptor protein receives "chemical language" to interconnect bacterial cells, to enable simultaneous bio-luminescence.

Harmonious relationship with the squid - controls bacteria numbers depending on time of day ]]> 2019-03-21 00:37:10 UTC https://padlet.com/billash011/plt0rw8azhhh/wish/343588349 Quorum sensing https://padlet.com/billash011/plt0rw8azhhh/wish/343589287 -oldest single cell organism: bacteria 
-10x more cells, 100x more DNA in humans
-bodies armour 
-communicate via chemicals
-universal communication molecule 
-controls pathogenesis
-able to recognise self & other bacteria
-intraspecies and interspecies, parallel systems
-application for antibiotic resistance  

]]> 2019-03-21 00:41:23 UTC https://padlet.com/billash011/plt0rw8azhhh/wish/343589287 Bacterial Communication in Fighting Disease https://padlet.com/billash011/plt0rw8azhhh/wish/343589308 1. Humans have 10 times bacteria cell and 100 times more bacterial genes
2. Quorum sensing = how bacteria communicate 

3. Bacteria communicate both within species with specific molecules and between species with a universal ]]> 2019-03-21 00:41:28 UTC https://padlet.com/billash011/plt0rw8azhhh/wish/343589308 https://padlet.com/billash011/plt0rw8azhhh/wish/343590178 2019-03-21 00:45:51 UTC https://padlet.com/billash011/plt0rw8azhhh/wish/343590178 https://padlet.com/billash011/plt0rw8azhhh/wish/343590196 2019-03-21 00:45:56 UTC https://padlet.com/billash011/plt0rw8azhhh/wish/343590196 https://padlet.com/billash011/plt0rw8azhhh/wish/343590281 2019-03-21 00:46:18 UTC https://padlet.com/billash011/plt0rw8azhhh/wish/343590281 Cell communication https://padlet.com/billash011/plt0rw8azhhh/wish/343590512 2 ways:
1. Intra-species communication (a)
2. Inter-species communication (b)]]> 2019-03-21 00:47:29 UTC https://padlet.com/billash011/plt0rw8azhhh/wish/343590512 https://padlet.com/billash011/plt0rw8azhhh/wish/344045554 2019-03-22 00:40:10 UTC https://padlet.com/billash011/plt0rw8azhhh/wish/344045554