Hydrogen Bonding

What is a hydrogen bond?

• A bond between two hydrogen atoms

• A bond between a hydrogen atom and an electronegative atom

• A bond between two electronegative atoms

• A bond between two oxygen atoms

Which atoms are commonly involved in hydrogen bonding?

• Hydrogen and oxygen

• Hydrogen and nitrogen

• Oxygen and nitrogen

• Oxygen and carbon

How many hydrogen bonds can a water molecule form?

• One

• Two

• Three

• Four

Tags

NGSS.HS-ESS2-5

What type of bonds hold nitrogenous bases together in DNA?

• Ionic bonds

• Covalent bonds

• Hydrogen bonds

• Van der Waals forces

What type of bond is primarily responsible for the unique properties of water, including its high specific heat and surface tension?

• Ionic bond

• Covalent bond

• Hydrogen bond

• Metallic bond

Why does water have a high surface tension compared to most other liquids?

• Because of its low molecular weight

• Due to the hydrogen bonds between water molecules

• Because of its high specific heat capacity

• Due to the covalent bonds within the water molecule

Tags

NGSS.HS-ESS2-5

Explain how hydrogen bonding in water contributes to its high specific heat capacity.

• Hydrogen bonds store heat, releasing it slowly as they break

• Hydrogen bonds prevent any heat absorption

• Hydrogen bonds increase the kinetic energy of water molecules

• Hydrogen bonds create a crystalline structure in water

Tags

DOK Level 2: Skill/Concept

How many hydrogen bonds are there between cytosine and guanine in DNA?

• One

• Two

• Three

• Four

Which secondary structure of proteins is formed due to hydrogen bonds?

• Alpha helix

• Beta pleated sheet

• Random coil

• Disordered structure

What is the purpose of hydrogen bonds in DNA?

• To stabilize the double helix structure

• To provide energy for replication

• To prevent mutations

• To enhance transcription