Yr 9 Health 7-1 Coordinated Body Systems
is the set of life-sustaining chemical transformations within the cells of living organisms - the total of catabolism and anabolism.
breaks-down of organic matter, for example to harvest energy in cellular respiration.
uses energy to construct components of cells such as proteins and nucleic acids.
a substance that speeds up the rate of the reaction without being used up in the process.
an organic catalyst.
the target of the enzyme
Lock and Key model
specific enzyme with the specific substrate [LE-KS]
include carbohydrates, proteins and lipids (fats and oils), vitamins and mineral elements.
breads, potatoes rice - broken down into simple sugars (glucose)
meat, fish, poultry and some nuts and legumes - broken down into amino acids
fats and oils - broken down into fatty acids and glycerol
movement of particles of a substance from an area of high concentration to an area of low concentration.
Air sacs in the lungs where the exchange of carbon dioxide and oxygen occurs
the oxygen carrying protein in red blood cells
of the heart
SA node (sino-artrial node)
spasmodic twitching of the heart muscle - very serious condition that leads to death
Device to electrically shock the heart back into normal sinus rhythm
small top chambers of the heart
large lower chambers of the heart
machine that records electric signals from the heart
hormone increases cardiac output
chemical reaction that occurs in mitochondria that combines glucose and oxygen to produce carbon dioxide and water as wastes.
small functional sub-units within the cell that have very specific tasks
organelle where cellular respiration occurs.
the organelle where proteins are manufactured.
largest internal organ, breaks down hormones medicines (panadol), drugs (caffeine, alcohol)
controls electrical impulses into the ventricles