(2.5 Inorganic ions)

Question 1

What are inorganic ions?

Answer 1

Atoms with charges but don’t contain carbon.

Question 2

What are the 2 types of ions?

Answer 2

1. cation
2. anion

Question 3

What are cations?

Answer 3

Positively charged ions

Question 4

What are anions?

Answer 4

Negatively charged ions

Question 5

Where do inorganic ions occur in?

Answer 5

Solution in the cytoplasm and body fluids of organisms

Question 6

Do different inorganic ions have different concentrations?

Answer 6

Yes, some are in high concentrations and some are in very low concentrations.

Question 7

What determines the ions’ specific roles?

Answer 7

Their structures and properties

Question 8

What are the examples of inorganic ions?

Answer 8

1. iron ion
2. sodium ion
3. hydrogen ion
4. phosphate ion

Question 9

What is the function of iron ions?

Answer 9

Bind to oxygen within haemoglobin

Question 10

What are the functions of sodium ions?

Answer 10

1. co-transport glucose and amino acids
2. generate nerve impulses

Question 11

What are the functions of hydrogen ions?

Answer 11

1. maintain pH level
2. aerobic respiration
3. help with enzyme-controlled reactions

Question 12

What are the functions of phosphate ions?

Answer 12

1. allow phosphodiester bonds forms in DNA and RNA
2. release energy (found in ATP)

Question 13

Where are phosphate ions found?

Answer 13

1. DNA
2. RNA
3. ATP
4. phospholipids