1. Inorganic Ions

Question 1

What are ions?

Answer 1

Substances/particles that have either lost or gained at least one electron in order to have a full outer shell

Question 2

What happens to ions when they are placed in an electric field?

Answer 2

They migrate to the electrode with the opposite charge (opposites attract!)

Question 3

Function of ions

Answer 3

Needed for the synthesis of some compounds or cellular processes

Question 4

H+

Answer 4

Controlling pH of blood/tissue fluid/cytoplasm

Question 5

Ca2+

Answer 5

Bone construction

Muscle contraction

Question 6

PO4 3-

Answer 6

Component of ATP, DNA, RNA & phospholipids

Question 7

Fe2+

Answer 7

Component of haemoglobin

Question 8

Na+

Answer 8

Involved in cotransport of glucose and amino acids

Question 9

pH formula

Answer 9

-log10(concentration of H+)

Question 10

What two components are responsible for maintaining optimum levels of each ion in cells?

Answer 10

Cytoplasm & body fluids

Question 11

What do mitochondria do with H+ ions?

Answer 11

They accumulate H+ ions in the intermembrane space to allow aerobic respiration to take place

Question 12

What is the only way in which inorganic ions can be obtained?

Answer 12

Through nutrition