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CCEA Biologically Important Ions - Statistics
General Stats
- This quiz has been taken 8 times
- The average score is 5 of 14
Answer Stats
| Ion | Biological Roles | % Correct |
|---|---|---|
| Component of chlorophyll | 67%
| |
| Magnesium (Mg²⁺) | Essential in giving chlorophyll its light-absorbing properties | 67%
|
| Iron (Fe²⁺) | Part of haem group in haemoglobin | 67%
|
| Phosphate (PO₄³⁻) | As phospholipids in cell membranes | 50%
|
| Component of adenosine triphosphate (ATP) | 50%
| |
| Calcium (Ca²⁺) | Essential component of middle lamella (calcium pectate) | 50%
|
| Hydrogencarbonate (HCO₃⁻) | Important as a natural buffer | 50%
|
| Component of nucleic acids | 33%
| |
| Component of nucleic acids | 33%
| |
| Essential component of bones and teeth in animals | 33%
| |
| Nitrate (NO₃⁻) | Component of amino acids | 17%
|
| Essential in blood clotting | 0%
| |
| Important constituent of electron carriers in respiration | 0%
| |
| Potassium (K⁺) | Important in maintaining electrical gradients across neurones | 0%
|
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