Chapter 4 frq deck

Question 1

explain hydroxyl group

Answer 1

electronegative oxygen makes it polar. It makes hydrogen bonds with water and helps water dissolve compounds.

Question 2

explain carbonyl group

Answer 2

sugar, either ketone or aldehyde

Question 3

explain carboxyl group

Answer 3

acts as an acid, can give away H+ made due to the polar covalent bond in hydrogen and oxygen

Question 4

explain amino group

Answer 4

acts like a base, can pick up a H+ from surrounding solutions

Question 5

explain sulfhydryl

Answer 5

Two -SH groups react, making a cross-link that stabilizes protein structure

Question 6

explain phosphate groups

Answer 6

contributes negative charge, allows the molecule to react with water, releasing energy

Question 7

explain methyl group

Answer 7

affects expressions of genes and proteins bonded to DNA. Affects shape and function of male/female sex hormones.