Biology: Organisation Flashcards
What is the order of organisation? (smallest to largest)
Cell–>Tissues–>Organs–>Organ System
What is a Tissue?
Group of similar cells that work together to carry out a particular function
What is an Organ?
Group of different tissues that work together to perform a certain function
What is an Organ System?
Group of Organs that work together to perform a certain function
What is an Enzyme?
A Catalyst in the body that breaks down food substances
What is a Catalyst?
Substance which increases the speed of a reaction without being changed or used up in the reaction
What do Enzymes attach to?
Substrates
What is the name of theory relating to enzymes and substrates
Lock and Key Theory
What can happen to Enzymes at high temperatures?
Denatured
What enzyme converts Carbohydrates into Simple Sugars?
Carbohydrase
What enzyme converts Protein into Amino Acids?
Protease
What enzyme converts Lipids into Glycerol and Fatty Acids?
Lipase
What Carbohydrase breaks down Starch?
Amylase
What Protease is found in the stomach?
Pepsin
Where can you find Carbohydrase?
Stomach, Pancreas, Small Intestine
Where can you find Protease?
Stomach, Pancreas, Small Intestine
Where can you find Lipase?
Pancreas, Small Intestine
What are the 10 organs part of the Digestion system?
Salivary Glands, Oesophagus, Stomach, Liver, Gall Bladder, Pancreas, Large Intestine, Small Intestine, Rectum, Anus
What is stored in Gall Bladder
Bile
What happens in the stomach?
Breaks down food into smaller chunks, Produces enzyme like Pepsin, Produces HCl to kill bacteria and give right pH for enzyme to work.
What is absorbed in the Small intestine?
Minerals and water
What is absorbed in the Large Intestine?
Excess water
What are the two sides of the heart?
Oxygenated left, Deoxygenated right
What are the four parts of the Heart?
Right atrium, Right Ventricle, Left atrium, Left ventricle
What are the four connections to the heart?
Aorta, Pulmonary vein, Vena cava, Pulmonary artery
What is the function of the pulmonary vein?
Carry oxygenated from lungs to heart