Inorganic ions Flashcards Preview

Biology > Inorganic ions > Flashcards

Flashcards in Inorganic ions Deck (13):

What are the roles of calcium (Ca2+

important for increasing rigidity
- bones
- teeth
- cartilage
- exoskeletons
also important for
- blood clotting
- muscle contraction - stimulation and nerve impulses
- regulating the permeability of cell membranes
- cell well development in plants


what is a cation?

a positive ion
cats are good


what are the roles of Sodium (Na+)?

important for
- regulating osmotic pressure
- controlling water levels in body fluids
- maintenance of pH
- keeping vacuoles turgid
- the absorption of carbs in the intestine and h2o in the kidneys
- nervous transmission


what are the roles of potassium (K+)?

it is important for
- the synthesis of glycogen
- the breakdown of glucose
- active transport in cell membranes via sodium potassium pump
- the regulation of water levels in body fluids
the maintenance of pH
- vacuoles turgidity
- nervous transmission (muscle contraction)


what are the roles of Magnesium (Mg2+)?

- Mainly important for producing chlorophyll in plants


What are the roles of hydrogen (H+)?

important for
- photosynthesis
- respiration
- CO2 and O2 transport in the blood
- regulating pH levels


What are the roles of Ammonium (NH4+)?

important for
- producing amino acids and thus proteins
- producing vitamins
- producing vitamins
- producing chlorophyll
-this mean it also builds hormones and nucleic acids
-is part of the nitrogen cycle
-as a proton donor it regulates pH


What are Anions?

Negatively charged ions


What are the roles of Nitrate (NO3-)?

a component of
- amino acids
- proteins
- vitamins
- chlorophyll
- hormones
- nucleic acids
- nitrogen cycle
(same as ammonium ions but not involved in regulating pH)


what are the roles of hydrogencarbonate ( HCO3-)?

- involved in regulation of pH
- involved in the transport of CO2 in the blood


what are the roles of chloride (Cl-)?

-involved in the regulation of pH
-important in produce HCl in the stomach
- regulates the affinity of blood for oxygen through allosteric effects
- involved in transport of CO2 out of the blood
- involved in the production of urine in the kidneys


What are the roles of Phosphate (PO4-3)?

important in th e rigidity of bone, teeth, cartilage and exoskeletons
- component of phospholipids
- part of nucleic acids
- forms ATP
- regulates blood pH
- controls root growth


what are the roles of hydroxide (OH-)?

- important in regulating blood pH