Module 2 Section 2 - Inorganic Ions

Question 1

What is an ion

Answer 1

An atom that has an 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 the inorganic cation that we need to know

Answer 5

Calcium
Sodium
Potassium
Hydrogen
Ammonium

Question 6

What is the chemical symbol for calcium

Answer 6

Ca 2+

Question 7

What is the chemical symbol for sodium

Answer 7

Na +

Question 8

What is the chemical symbol for potassium

Answer 8

K +

Question 9

What is the chemical symbol for hydrogen

Answer 9

H +

Question 10

What is the chemical symbol for ammonium

Answer 10

NH4 +

Question 11

What are the inorganic anions we need to know

Answer 11

Nitrate
Hydrocarbonate
Chloride
Phosphate
Hydroxide

Question 12

What is the chemical symbol for nitrate

Answer 12

NO3 -

Question 13

What is the chemical symbol for hydrocarbonate

Answer 13

HCO3 -

Question 14

What is the chemical symbol for Chloride

Answer 14

Cl -

Question 15

What is the chemical symbol for phosphate

Answer 15

PO4 3-

Question 16

What is the chemical symbol for hydroxide

Answer 16

OH -

Question 17

Give an example of roles of calcium in biological processes

Answer 17

Calcium is involved in the transmission of nerve impulses
the release of insulin from the pancreas
Acts as a cofactor for many enzymes
Important for nine formation

Question 18

Give an example of roles of sodium in biological processes

Answer 18

Important for generating nerve impulses for muscle contraction
Regulating fluid balance

Question 19

Give an example of roles of potassium in biological processes

Answer 19

Important for generating nerve impulses for muscle contraction
Regulating fluid balance
Activates essential enzymes

Question 20

Give an example of roles of hydrogen in biological processes

Answer 20

Affects pH substances
Important for photosynthesis reactions that occur in thylakoid membranes inside chloroplast

Question 21

Give an example of roles of ammonium in biological processes

Answer 21

Absorbed from soil in plants
important source of nitrogen

Question 22

Give an example of roles of nitrate in biological processes

Answer 22

Absorbed from soil by plants
Important source of nitrogen

Question 23

Give an example of roles of in hydrocarbonate biological processes

Answer 23

Acts as a buffer, which helps to maintain pH of blood

Question 24

Give an example of roles of chloride in biological processes

Answer 24

Involved in chloride shift - helps maintain pH of blood during gas exchange
Acts as cofactor for the enzyme amylase
Involved in some nerve impulses

Question 25

Give an example of roles of phosphate in biological processes

Answer 25

Involved in photosynthesis and respiration reactions Needed for synthesis of many biological molecules

Question 26

Give an example of roles of hydroxide in biological processes

Answer 26

Affects pH of substances