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WorksheetsBiochemistry Introduction
Total questions: 11
Worksheet time: 16mins
Which of the following is describing the biochemical unit that underlies biological diversity?
Which of the following is TRUE?
Briefly explain the properties of biological molecules
What are the two different classes of molecules involved in the chemistry of life processes?
Macromolecules and metabolites
Proteins and carbohydrates
Nucleic acids and lipids
Glucose and glycerol
What is the strongest bond that holds atoms together within an individual molecule?
Covalent bond
Ionic bond
Hydrogen bond
Van der Waals interaction
What is the typical length of a C-C bond?
1.54 Å
1.34 Å
2.0 Å
3.0 Å
What is the principle behind van der Waals interactions?
The distribution of electronic charge around an atom fluctuates
Atoms share electrons
Ionic charges attract each other
Hydrogen bonds form between molecules
What is the role of water in biochemical reactions?
It acts as a solvent
It provides energy
It forms covalent bonds
It stabilizes macromolecules
What happens to the entropy of a system during a chemical reaction?
It always increases
It always decreases
It remains constant
It fluctuates
What is the significance of H-bonds in DNA?
They determine the formation of specific base pairs
They provide energy for DNA replication
They stabilize the DNA double helix
They are the strongest bonds in DNA
What is the effect of pH on the dissociation of DNA strands?
It can cause strands to dissociate
It has no effect
It strengthens the bonds
It increases the stability
