bioinorganic ions Flashcards
1
Q
name he bioinorganic ions?
A
nickel, NI2+ iron, Fe2+ sodium, Na+ potassium, K+ calcium, Ca2+ manganese, Mn2+ lithium, Li+ platinum, Pt2+
2
Q
what is the function of nickel?
NI2+
A
nickel is two enzymes hydrogenase + hydrolase
- hydrogenase catalyses the reaction of molecular hydrogen
- hydrolase catalyses the hydrolysis of a chemical bond
3
Q
function of iron? Fe2+
A
- found in the red blood cells of hemoglobin. also found in muscles cells of myoglobin
- iron is found within each haem group attached to a polypeptide chain
4
Q
what is the function of sodium Na+ and potassium K+?
A
- important for a constant internal environment in the cell
- involved in the transmission of nerve impulses along the nerve fibres and axons. cell pumps sodium ions out of the cell and potassium ions in the cell. creating an electric potential difference across the plasma membrane of the neuron
5
Q
what is the function of calcium?
Ca2+
A
- facilitates interaction between actin-myosin during muscle contraction
- acts as a charge carrier in the nerve cell
- in plants, it is a component of the cell wall and is responsible for cell adhesion
6
Q
what is the function of manganese?
Mn2+
A
- compound of enzyme, oxidase
- acts as a cofactor for photolysis
- helps with protein and amino acid digestion
- involves in the biosynthesis of choline
7
Q
what is the biosynthesis of choline?
A
is the formation of larger organic molecules from small molecules by the action of enzymes in a living organism
8
Q
function of lithium? Li+
A
- used to treat blood pressure
- used in the form of lithium carbonate and citrate to treat depression and bipolar disorder. acts a mood stabiliser
9
Q
what is the function of platinum?
Pt2+
A
- component of cisplatin used in cancer treatment, chemotherapy
- causes apoptosis of cancer cells through changes in DNA structure. inhibits DNA replication, transcription, and cell division
