Inorganic Ions Flashcards
1
Q
Ions Definition
A
Atoms / groups of atoms with an electric charge. Can be negatively or positively charged.
2
Q
Inorganic ions Definition
A
Ions (atoms / groups of atoms with an electric charge) which do not contain carbon
3
Q
Inorganic Ions
A
Phosphate ions
Hydrogen ions
Iron ions
Sodium ions
4
Q
Iron ions
A
- Fe 2+ ions are part of haemoglobin + allows haemoglobin to carry its function
- Haemoglobin is a globular protein with a quaternary structure. It consists of 4 polypertide chains. Each of these chains has a central Fe 2+ ion
- The function of haemoglobin is to carry oxygen around the body in the red blood cells
- The Fe 2+ ion is what binds to oxygen
- When oxygen is bound the Fe 2+ ion temporarily becomes Fe 3+ ion. When oxygen is released, it becomes Fe2+ ion again
5
Q
Hydrogen ions
A
- CONC OF H+ IONS IN SOLUTION Determined pH
- pH is conc of H+ ions. Higher conc of H+ ions (in solution) means the environment is more acidic
- All enzyme controlled reactions are affected by pH
6
Q
Sodium ions
A
- Sodium ions Na+ involved in co-transport of glucose and amino acids
7
Q
Phosphate ions
A
- Phosphate ions are called phosphate groups when attached to another molecule
- ATP, DNA, RNA all have phosphate groups
- In ATP, the energy is stored within phosphate bonds between phosphate groups
- In DNA and RNA, the (CONDENSATION REACTIONS BETWEEN) phosphate groups allow the nucleotides to join together to form polynucleotides
