Molecules and inorganic ions

Question 1

What are organic molecules?

Answer 1

Biological molecules containing carbon (e.g carbs, lipids, proteins)

Question 2

What elements do carbohydrates contain?

Answer 2

Carbon, hydrogen and oxygen

Question 3

What elements do lipids contain?

Answer 3

Carbon, hydrogen and oxygen

Question 4

What elements do proteins contain?

Answer 4

Carbon, hydrogen, oxygen and nitrogen

Question 5

What elements do nucleic acids contain?

Answer 5

Carbon, hydrogen, oxygen, nitrogen and phosphorus

Question 6

What is a monomer?

Answer 6

Smaller units that combine to make large molecule (polymer)

Question 7

What is a polymer?

Answer 7

Large molecule made of many repeating units of monomers joined together by chemical bonds

Question 8

What is a condensation reaction?

Answer 8

Removal of H2O to form a chemical bond between two molecules

Question 9

What is a hydrolysis reaction?

Answer 9

Addition of H2O to break a chemical bond between two molecules

Question 10

What is an ion?

Answer 10

Atom with an electric charge

Question 11

What is an inorganic ion?

Answer 11

Ion that doesn’t contain carbon (some exceptions)

Question 12

What is the difference between a cation and a anion?

Answer 12

Cation = ion with a positive charge
Anion = ion with a negative charge

Question 13

What are some cation examples?

Answer 13

• calcium CA2+
• sodium NA+
• potassium K+
• hydrogen H+
• ammonium NH4+
• iron Fe2+

Question 14

What are some anion examples?

Answer 14

• chloride CI-
• phosphate PO43-
• hydroxide OH-
• nitrate NO3-
• hydrogencarbonate HCO3-