inorganic ions Flashcards
(10 cards)
1
Q
where do inorganic ions occur ?
A
- they occur in solution in the cytoplasm and body fluids of organisms
2
Q
what kind of concentrations do inorganic ions occur in ?
A
- some in high conc
- some in low conc
3
Q
what does each type of inorganic ion have in terms of its function ?
A
- each inorganic ion has a specific role
4
Q
what does the inorganic ions specific role depend on ?
A
- it depends on its properties
5
Q
what are the 6 inorganic ions you need to know ?
A
- H+ (hydrogen ions)
- OH- (hydroxyl ions )
- Fe2+ (iron ions)
- Na+ (sodium ions )
- PO4 3- (phosphate ions)
- Mg2+ (magnesium ions)
6
Q
what is the importance of hydrogen and hydroxyl ions ?
A
- decrease or increase the pH
- can impact the shape of the enzyme active site and therefore affect enzyme function
7
Q
what is the importance of the iron ion ?
A
- a component of haemoglobin
- allows for the transport of oxygen
8
Q
what is the importance of sodium ions ?
A
- involved in co-transport of glucose and amino acids in absorption
- have a role in generating action potentials
9
Q
what is the importance of phosphate ions ?
A
- a component of DNA and RNA
- where it is needed to form phosphodiester bonds with deoxyribose
- used in ATP where phosphate group can be added to other compounds to make them more reactive
- used in phospholipds
10
Q
what is the importance of magnesium ions ?
A
- found in chlorophyll
- absorbs light at the red - blue/violet end of the spectrum
- used in photosynthesis
