Properties of Biological Molecules I and II

Question 1

Define covalent bonds

Answer 1

Sharing a pair of electrons by two atoms

Question 2

Define electrostatic interactions

Answer 2

A charged group can attract an oppositely charged group

Question 3

Define hydrogen bond

Answer 3

a hydrogen atom covalently bonded to one electronegative atom is also attracted to another electronegative atom

Question 4

Define van der Walls interactions

Answer 4

Results from the asymmetrical distribution of electrons in molecules or atoms (“hot spots” of positive or negative charge)

Question 5

What are unsaturated fatty acids?

Answer 5

Unsaturated fatty acids do not have the maximum number of hydrogens bonded to carbons, at room temperature they will be liquid.

Question 6

What are saturated fatty acids?

Answer 6

Saturated fatty acids have the maximum number of hydrogens bonded to carbons, at room temperature they are solid. The contribute more to heart disease.