molecule
Molecules consist of atoms held together by chemical bonds. This topic is part of Chemistry within Science & Nature. This page currently draws on 32 supporting questions, with answers and bonus facts available below.
molecule trivia questions
A molecule is made of two or more atoms joined by what?
Answer: Chemical bonds
Bonus fact: Molecules consist of atoms held together by chemical bonds.
Which type of bond involves atoms sharing pairs of electrons?
Answer: Covalent bond
Bonus fact: Covalent bonds form when atoms share electrons.
What shape is the DNA molecule famously described as?
Answer: Double helix
Bonus fact: DNA typically consists of two strands wound into a double helix.
What molecule do humans mainly breathe from the atmosphere?
Answer: O2
Bonus fact: Ordinary atmospheric oxygen is diatomic O2.
A polymer is a large molecule made of repeating smaller units called what?
Answer: Monomers
Bonus fact: Polymers are built from repeating molecular units.
What type of reaction commonly links monomers while releasing a small molecule such as water?
Answer: Condensation polymerization
Bonus fact: Many polymers form through condensation reactions.
Phosphorus is especially important in what molecule that stores cellular energy?
Answer: ATP
Bonus fact: ATP contains phosphate groups.
What energy-carrying molecule is produced in large quantities by mitochondria?
Answer: ATP
Bonus fact: ATP stores usable cellular energy.
Ozone is made of how many oxygen atoms per molecule?
Answer: Three
Bonus fact: Ozone has the chemical formula O3.
What molecule commonly reacts with oxygen in firefly light production?
Answer: Luciferin
Bonus fact: Luciferin is oxidized in a reaction catalyzed by luciferase.
The double helix describes the shape of what molecule?
Answer: DNA
Bonus fact: DNA consists of two intertwined strands.
An ion is an atom or molecule with what?
Answer: Electric charge
Bonus fact: Ions form when electrons are gained or lost.