CH3: Biological Molecules

Question 1

What are organic compounds?

Answer 1

Organic compounds refer to compounds that contain both CARBON and HYDROGEN that are found in LIVING ORGANISMS.

Question 2

Examples of organic compounds:

Answer 2

• carbohydrates
• lipids
• proteins
• nucleic acids

Question 3

Exceptions that contain hydrogen and carbon but are inorganic compounds.

Answer 3

• Hydrogen carbonate (HCO⁻ ₃)
• Carbonates (CO₃²⁻)
• Oxides of carbon (CO, CO₂)

Question 4

All organic compounds are?

Answer 4

macromolecules

Question 5

What are the 2 types of macromolecules?

Answer 5

1. Polymers
2. Non-polymers

Question 6

What are polymers?

Answer 6

Organic compounds that are built from repeating basic units called MONOMERS.

Question 7

Which organic compounds are polymers?

Answer 7

• Complex carbohydrates
• Proteins
• Nucleic acid

Question 8

Which organic compound is a non-polymer?

Answer 8

Lipids

Question 9

What are carbohydrates?

Answer 9

• an organic molecule
• made of CARBON, HYDROGEN and OXYGEN elements
• hydrogen and oxygen atoms are present in the ratio of 2;1.

Question 10

Types of carbohydrates:

Answer 10

1. Sugars (simple and double sugars)
2. Complex carbohydrates

Question 11

Sugars are (monomers/non-polymers/polymers)

Answer 11

monomers

Question 12

What are the properties of sugars?

Answer 12

• soluble in water > exerts osmotic pressure
• sweet to taste

Question 13

single sugars are known as…

Answer 13

monosaccharides

Question 14

double sugars are known as…

Answer 14

disaccharides

Question 15

What is the general formula of monosaccharides?

Answer 15

CH₂O