WorksheetsStructure of Water and Hydrogen Bonding
Total questions: 10
Worksheet time: 5mins
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
What type of bonds hold nitrogenous bases together in DNA?
Ionic bonds
Covalent bonds
Hydrogen bonds
Van der Waals forces
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 property of water allows it to move from roots to leaves in plants?
Cohesion
Adhesion
Capillary action
Specific heat
Why do coastal regions tend to be cooler?
Due to high specific heat of water
Due to low specific heat of water
Due to high density of water
Due to low density of water
What happens to the density of water upon freezing?
It increases
It decreases
It remains the same
It becomes zero
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
