1.8 Inorganic Ions Flashcards
Biomolecules
1
Q
Cation
A
Ion with a positive charge
2
Q
Anion
A
Ion with a negative charge
3
Q
Inorganic ion
A
Doesn’t contain carbon
4
Q
Iron ions
A
Found in haemoglobin, each of the four polypeptides in it have an iron ion. Oxygen binds to the iron ion
5
Q
Hydrogen ions
A
Determine pH, more pH means lower pH so more acidic
6
Q
Sodium ions
A
Glucose or amino acid can be transported across cell membrane alongside sodium ions. Known as co-transport
7
Q
Phosphate ions
A
DNA, RNA and ATP all contain phosphate groups. Bonds between phosphate groups in ATP store the energy. Phosphate group in DNA and RNA allow nucleotides to join to form polynucleotides
