Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
9 Cards in this Set
- Front
- Back
|
What is the name if the bacteria which causes the Cholera disease? |
Vibro Cholerae Bacteria. |
|
|
How is the cholera bacteria transmitted into the body? |
By the ingestion of contaminated water or more rarely food. |
|
|
What is the water ingested contaminated with? |
It is contaminated with faecal material containing the Vibrio Cholerae bacteria. |
|
|
What does the Cholera bacteria do when it reaches the small intestines? |
It releases toxins. |
|
|
What do the toxins released do? |
They bind to specific receptor on the epithelial cells, sets a chain of events which opens the chloride channels and causes the concentration to reverse. |
|
|
What happens after the concentration gradient has been reversed? |
The chloride ions flow into the lumen. |
|
|
What happens after the chloride ions flow into the lumen? |
Water now osmoses from the high water potential in the blood to the low water potential in the lumen down the concentration gradient. |
|
|
What causes the chloride ions to flow into the lumen? |
The opening of the chloride channels.
|
|
|
What effect does the osmosis of water molecules from the blood to the lumen have on the body? |
The body gets dehydrated through the osmosis and the body is not absorbing water. |
