Quiz on Molecules of Cells

What is the primary element that forms the backbone of organic compounds?

• Nitrogen

• Carbon

• Hydrogen

• Oxygen

Which model shows the geometric relationship of atoms in a molecule?

• Ball-and-stick model

• Space-filling model

• Structural formula

• Electron cloud model

What are isomers?

• Compounds with different formulas and structures

• Compounds with the same formula but different structures

• Compounds with the same structure but different formulas

• Compounds that cannot form rings

Which functional group is commonly found in alcohols?

• Amino

• Hydroxyl

• Carbonyl

• Phosphate

What is the role of the carboxyl group in organic compounds?

• Forms rings

• Forms double bonds

• Acts as an acid

• Acts as a base

Which functional group is involved in energy transfer in cells?

• Hydroxyl

• Methyl

• Amino

• Phosphate

What are the four main classes of organic compounds?

• Glucose, cholesterol, peptides, genes

• Carbohydrates, lipids, proteins, nucleic acids

• Sugars, fats, enzymes, DNA

• Starches, oils, amino acids, RNA

What process joins monomers to form polymers?

• Oxidation

• Condensation reaction

• Dehydration synthesis

• Hydrolysis

What is the process of breaking down polymers into monomers called?

• Dehydration

• Hydrolysis

• Polymerization

• Synthesis

What makes each organism's molecular composition unique?

• Unique set of molecules

• Distinct dehydration processes

• Different monomers

• Varied polymer types