mineral ions

Question 1

hydrogen

Answer 1

plants - chemiosmosis, ATP synthesis - photosynthesis and respiration

animals - pH (blood) ATP synthesis, chemisomosis - respiration

high concentration of H+ = low pH (acidic)
H+ ions interact with H-bonds and ionic bonds in tertiary structure of proteins, which can cause them to denature

Question 2

hydrogen carbonate

Answer 2

plants - source of CO2 for submerged plants

animals - CO2 in blood plasma

Question 3

what are inorganic ions

Answer 3

Inorganic ions are charged particles that are not part of a larger organic molecule

Inorganic ions occur in solution in the cytoplasm and body fluids of organisms, some in high concentrations and others in very low concentrations

Question 4

nitrite, nitrate, ammonium

Answer 4

nitrogen cycle
proteins
nucleic acids

Question 5

sodium

Answer 5

neural transmission
co-transport with glucose and amino acid in intestine and kidneys

Question 6

magnesium

Answer 6

component of chlorophyll

Question 7

sulphate

Answer 7

proteins - 2/20 aa

Question 8

potassium

Answer 8

stomata - opening and closing

neural transmission

Question 9

calcium

Answer 9

synapses and muscle contraction

Question 10

iron

Answer 10

Fe 2+ bonds to porphyrin ring to form haem group in haemoglobin

haem group has binding site to transport 1 molecule of O2 around the body in the bloodstream

4 haem groups per haemoglobin molecule

Question 11

what are inorganic ions and where are they found in the body

Answer 11

ions that do not contain carbon atoms

found in cytoplasm and extracellular fluid

may be in high or very low concentrations

Question 12

phosphate

Answer 12

phospholipids and nucleic acids

component of DNA, ATP, NADP, cAMP