Organisation Flashcards
(69 cards)
What is a tissue ?
A group of similar cells that work together to carry out a function (made up of two or more types of cells)
What is an organ ?
A group of different tissues that work together to perform a certain function
What is an organ system ?
A group of organs working together to preform a particular function
Define catalyst ?
A substance which increases the speed of a reaction without being changed or used up
How do enzymes act as a catalyst ?
Similar to “lock and key” so every enzyme has a unique active site where the substance involved will fit into your react quicker
What 2 things effects how active an enzyme is ?
-The right temperature (has to be in the middle)
-has to be optimum ph (usually around 7)
What 3 molecules are to big to pass through the walls of the digestive system ?
Starch
Fats
Proteins
How is starch broken down and what into ?
Starch Is broken down by a enzyme called amylase and breaks into small sugars
How is proteins broke down ? And what into ?
In the digestive system proteins are broken down by protease and turns into amino acids
How is lipases broken down? And what into ?
Lipids are converted by lipases into glycerol and fatty acids
Where is amylase made ?
Salivary glands
Pancreas
Small intestine
Where are proteases made ?
Stomach
Pancreas
Small intestine
Where are lipases produced ?
Pancreas
Small intestine
Where he bike produced ?
In the liver
Where is bile stored ?
Gall bladder before it’s released into the small intestine
What does bile do ?
Where to ph in the stomach is too acidic for enzymes in the small intestine, bile is produced as it is a alkaline and neutralises it
How are enzymes produced in the digestive system ?
By specialised glands and the gut lining
What are all the parts of the digestive system ?
Salivary glands
Gullet
Stomach
Liver
Gall bladder
Pancreas
Large intestine
Small intestine
Rectum
In the digestive system what does the salivary glands do ?
These produce amylase enzyme in the saliva
In the digestive system what does the liver do ?
Where bile is produced and bile neutralises stomach acid and emulsifies fats
In the digestive system what does the gall bladder do ?
Where bile is stored before it’s realised into the small intestine
In the digestive system what does the large intestine do ?
Where excess water is absorbed from food
In the digestive system what does the stomach do ?
Pimples the food with its muscular walls and produces protease enzyme for proteins
In the digestive system what does the pancreas do ?
Produces protease,analyse and lipase enzymes and releases it into the small intestine
