Inorganic ions Flashcards
1
Q
What is an inorganic ion?
A
An ion that does not contain carbon
2
Q
What is a cation?
A
An ion with a positive charge
3
Q
What is an anion?
A
An ion with a negative charge
4
Q
What is the role of Ca2+
A
- Nerve impulse transmission
- Muscle contraction
- Cofactor for enzymes
5
Q
What is the role of Na+
A
- Generating nerve impulses
- Muscle contraction
- Co-transport of glucose and amino acids
6
Q
What is the role of K+
A
- Generating nerve impulses
- Muscle contraction
- Regulating fluid balance
7
Q
What is the role of H+
A
- Determines the pH of solutions
- Used in photosynthesis
8
Q
What is the role of NH4+
A
- Source of nitrogen for plants
9
Q
What is the role of Fe2+
A
- Binds to oxygen within haemoglobin
10
Q
What is the role of Cl-
A
- Maintains blood pH in gas exchange
- Cofactor for amylase
11
Q
What is the role of PO4^3+
A
- Component of nucleotides and phospholipids
- Bonds store energy in ATP
12
Q
What is the role of OH-
A
- Determines the pH of solutions
13
Q
What is the role of NO3-
A
- Source of nitrogen
14
Q
What is the role of HCO3-
A
- Maintains blood pH
