7 Functional Groups

Question 1

Hydroxyl group

Answer 1

-OH or -HO. Polar, forms hydrogen bonds with water to help dissolve compounds

Question 2

Carbonyl Group

Answer 2

> C = O. Compounds w/ carbonyl groups have higher melting boiling points and are more soluble in polar compounds.

Question 3

Carboxyl Group

Answer 3

– C = O
I
OH
Acts as an acid (donate H+) bc the covalent bond between hydrogen & oxygen is so polar.

Question 4

Amino Group

Answer 4

NH2. Acts as base, can pick up an H+ from the surrounding solution

Question 5

Sulfhydryl Group

Answer 5

-SH or -HS. Two -SH groups can react to stabilize protein structure.

Question 6

Methyl group

Answer 6

• CH3. Affects the expression of genes when binded to DNA or to proteins that bind to DNA.