INORGANIC IONS

Question 1

What does an (inorganic) ion have

Answer 1

electric charge

Question 2

What is an ion with a positive charge called

Answer 2

cation

Question 3

What is an ion with a negative charge called

Answer 3

anion

Question 4

What is an inorganic ion

Answer 4

an ion that doesn’t contain carbon

Question 5

What are 4 main important ions

Answer 5

1) iron
2) hydrogen
3) sodium
4) phosphate

Question 6

What are iron ions an important component of

Answer 6

haemoglobin

Question 7

What is the role of haemoglobin

Answer 7

carry oxygen around the boyd in the red blood cells

Question 8

Is haemoglobin large or small

Answer 8

large

Question 9

How many polypeptide chains does haemoglobin have and what structure does this mean it is

Answer 9

4, tertiary

Question 10

What is in the centre of each of the polypeptide chains have in the centre

Answer 10

an iron ion (Fe2+)

Question 11

What binds to the oxygen in haemoglobin

Answer 11

iron ion

Question 12

What happens to the Fe2+ when oxygen is bound

Answer 12

it temporarily becomes Fe3+

Question 13

What do hydrogen ions do in the body

Answer 13

determine pH

Question 14

What happens when more H+ ions are present

Answer 14

pH is lowered , more acidic environment

Question 15

What are sodium ions useful for

Answer 15

transport of glucose and amino acids across membranes

Question 16

What process is sodium ions used for

Answer 16

co-transport

Question 17

What are phosphate ions essential for

Answer 17

ATP and DNA

Question 18

What is phosphate ion useful for in ATP

Answer 18

the bonds between the phosphate groups hold the energy

Question 19

What state are inorganic ions found in organisms

Answer 19

in solution in the cytoplasm of cells and body fluids and larger molecules