Understanding Functional Groups in Biological Molecules

What analogy is used to describe the 3D shape of biological molecules?

• A dog with a blanket

• A fish in water

• A cat with a hat

• A bird with wings

What determines the chemical behavior of biological molecules?

• The weight of the molecule

• The surface functional groups

• The size of the molecule

• The color of the molecule

Which functional group is hydrophilic and participates in dehydration reactions?

• Hydroxyl group

• Carbonyl group

• Sulfhydryl group

• Methyl group

What is the characteristic of a carbonyl group when it is at the end of a carbon skeleton?

• It is called an aldehyde

• It is called a ketone

• It is called an amine

• It is called a carboxyl

Which functional group tends to donate H+ ions, conferring acidic behavior?

• Amine group

• Methyl group

• Phosphate group

• Carboxyl group

What is the role of the phosphate group in biological reactions?

• It stores or releases energy

• It forms disulfide bridges

• It acts as a base

• It repels water

Which functional group is important in protein folding due to disulfide bridge formation?

• Hydroxyl group

• Methyl group

• Sulfhydryl group

• Carbonyl group

What is the characteristic of the methyl group in terms of reactivity?

• Not reactive at all

• Highly reactive

• Moderately reactive

• Less reactive

How can the addition or removal of a methyl group affect biological molecules?

• It increases the molecule's size

• It affects gene expression

• It changes the molecule's color

• It decreases the molecule's weight

What study aid is suggested for learning functional groups?

• A textbook

• A video tutorial

• A podcast

• Flashcards