1.7 - Inorganic ions Flashcards
1
Q
Where are inorganic ions found?
A
in solution in the cytoplasm and body fluids of organisms
2
Q
Describe the role of sodium ions
A
- co-transport of glucose/amino acids
- affects osmosis/WP of cells
3
Q
Describe the role of iron ions
A
component of haemoglobin in RBCs which binds with oxygen to transport it
4
Q
Describe the role of phosphate ions
A
- affects osmosis/WP of cells
- joins nucleotides in phosphodiester bond
- component of DNA
- used to produce ATP
- phosphorylates other compounds, usually making them more reactive
- hydrophilic part of phospholipid bilayer
5
Q
Describe the role of hydrogen ions
A
determine pH of substances e.g blood
