Biological elements Flashcards
1
Q
Calcium ions (Ca²⁺)
A
Nerve impulse transmission; muscle contraction
2
Q
Sodium ions (Na⁺)
A
Nerve impulse transmission; kidney function
3
Q
Potassium ions (K⁺)
A
Nerve impulse transmission; stomatal opening
4
Q
Hydrogen ions (H⁺)
A
Catalysis of reactions; pH determination
5
Q
Ammonium ions (NH₄⁺)
A
Production of nitrate ions by bacteria
6
Q
Nitrate ions (NO₃⁻)
A
Nitrogen supply to plants for amino acid and protein formation
7
Q
Hydrogencarbonate ions (HCO₃⁻)
A
Maintenance of blood pH
8
Q
Chloride ions (Cl⁻)
A
Balance positive charge of sodium and potassium ions in cells
9
Q
Phosphate ions (PO₄³⁻)
A
Cell membrane formation; nucleic acid and ATP formation; bone formation
10
Q
Hydroxide ions (OH⁻)
A
Catalysis of reactions; pH determination
