Biology 2.2.11: Inorganic Ions Flashcards
1
Q
uses of Ca^2+
A
- increases rigidity of bone, teeth and cartilage
- important in blood clotting + muscle contraction
- activator for enzymes; lipase, ATP + cholinesterase
- regulates cell membrane permeability
- cell wall development in plants
2
Q
uses of Na+
A
- involved in regulation of osmotic pressure, control of water levels + pH
- affects absorption of carbohydrate in intestine + water in kidney
- contributes to nerve transmission + muscle contraction
- helps maintain turgidity in plants
3
Q
uses of H+
A
- involved in photosynthesis and respiration
- involved in transport of O2 and CO2 in the blood
- involved in regulation of blood pH
3
Q
uses of K+
A
- control of water levels + pH
- assists active transport
- involved in synthesis of glycogen, protein + breakdown of glucose
- nervous transmission + muscle contractions
- component of vacuoles in plants
3
Q
uses of NH4+
A
- component of amino acids, proteins, vitamins and chlorophyll
- component of nucleic acids
- maintenance of pH in human body
- component of nitrogen cycle
4
Q
uses of NO3-
A
- component of amino acids, proteins, vitamins and chlorophyll
- component of nucleic acids
- component of nitrogen cycle
5
Q
uses of HCO3-
A
- regulation of blood pH
- transport of CO2 into + out of blood
6
Q
Cl-
A
- production of urine in kidney + maintain water balance
- involved in transport of CO2 into + out of blood
- regulates affinity of haemoglobin to O2
- regulation of blood pH
- used to produce hydrochloric acid in stomach
7
Q
PO4^3-
A
- increases rigidity of bone, teeth, cartilage and exoskeleton
- component of phospholipids, ATP, nucleic acids
- root growth in plants
8
Q
OH-
A
- regulation of blood pH
