Organic Molecules and Reactions Quiz

How many bonds can a carbon atom typically make?

• 1

• 2

• 3

• 4

Why is the ability of carbon to form 4 covalent bonds significant?

• It allows carbon to form stable bonds with only hydrogen.

• It enables carbon to form complex molecules, allowing the diversity of organic compounds found in living organisms.

• It limits carbon to only forming small molecules.

• It makes carbon highly reactive and unstable.

Which atoms primarily compose an organic molecule?

• Carbon, hydrogen, oxygen

• Carbon, nitrogen, hydrogen

• Carbon, oxygen, phosphorus

• Nitrogen, hydrogen, sulfur

What is the significance of functional groups in organic compounds?

• They determine the chemical reactivity and properties of the molecule.

• They make organic molecules insoluble in water.

• They only affect the structure of the molecule without altering its behavior.

• They are responsible for the formation of chemical bonds in organic molecules.

How are monomers and polymers related?

• Monomers are the smallest units that are bonded to form polymers in a process called hydrolysis.

• Monomers are the smallest units that are bonded to form polymers in a process called dehydration synthesis.

• Polymers are broken down into monomers in dehydration reactions.

• Monomers and polymers are not related in biological systems.

Which of the following occurs in a dehydration reaction?

• Water is added to break a bond between monomers.

• Water is released as a byproduct when two monomers are joined together.

• Monomers are separated by breaking bonds with water.

• Water is consumed to form a larger molecule.

What happens during a hydrolysis reaction?

• Water is added to split a larger molecule into smaller components.

• Water is released to combine monomers into a polymer.

• Water is not involved in hydrolysis reactions.

• Hydrolysis reactions build up proteins from amino acids.

Which of the following are the four categories of macromolecules?

• Carbohydrates, proteins, lipids, nucleic acids

• Carbohydrates, proteins, vitamins, minerals

• Fats, nucleic acids, sugars, proteins

• Proteins, lipids, salts, vitamins

In regards to carbohydrates, which of the following is the correct atomic composition?

• Carbon, hydrogen, nitrogen

• Carbon, hydrogen, oxygen

• Carbon, nitrogen, phosphorus

• Carbon, oxygen, phosphorus

What are the main functions of carbohydrates?

• To store genetic information

• To provide energy and structural support in cells

• To catalyze metabolic reactions

• To form the structural components of cell membranes