High Confidence - Inorganic Ions Flashcards
What does an inorganic ion not contain?
Carbon (few exceptions to this rule).
Name two inorganic ions that are important for:
Generating nerve impulses
Muscle contraction
Regulating fluid balance in the body
Sodium and Potassium
What type of ion is Sodium and what is its chemical symbol?
Cation / Na+
What inorganic ion is involved in the transmission of nerve impulses?
Calcium
What inorganic acts as a cofactor for many enzymes e.g. blood clotting and bone formation?
Calcium
Apart from pH, what other biological processes is hydrogen involved in?
Photosynthesis reactions occur in the thylakoid membranes inside chloroplasts.
Respiration reactions occur in the inner membrane of mitochondria.
What two ions are absorbed by plants and why?
Ammonium and Nitrate.
They are an important source of nitrogen.
What biological process is hydrogencarbonate involved in?
It acts as a buffer, which helps to maintain the pH of the blood.
What ion acts as a cofactor for the enzyme amylase?
Chloride
What does calcium phosphate do?
Strengthens bones.
What is an ion?
An atom, or group of atoms that has an electric charge.
A lack of Calcium can cause what condition?
Calcium.
Rickets. A condition that causes bones to become soft and weak.
How can you tell a plant has not got enough nitrogen?
Its leaves turn yellow.
Why is maintaining pH in the body important?
Too high, or too low can cause enzymes to denature.
