Weak Noncovalent Attractions in the Cell Can Be Very Strong

question 15

Multiple Choice

Weak noncovalent attractions in the cell can be very strong in a nonaqueous environment. Some of these attractions are as strong as covalent interactions in a vacuum (their bond energy is approximately 340 kJ/mole) , but become more than twenty-five times weaker (their bond energy becomes approximately 13 kJ/mole) in water. What type of attraction shows this phenomenon?

• A) Electrostatic attractions
• B) Hydrogen bonds
• C) van der Waals attractions
• D) Hydrophobic force
• E) All of the above

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Definitions:

Observational Study

A research method where the researcher observes ongoing behavior without intervening directly with the subjects.

Systematically Recording

The process of consistently and methodically documenting information or data according to a predetermined system.

Nursery School

An educational institution for children too young for elementary school, typically from ages three to five, focusing on play and learning activities.

Case Studies

Research method that involves the detailed examination of a single subject or situation to explore its dynamics and draw conclusions.