Question

Choose all that apply. You would find hydrogen bonds between; (hint: three correct choices)

A. two strands of DNA double helix
B. heads of phospholipids in a bilayer
C. water molecules in liquid water
D. tails of phospholipids in a bilayer
E. amino acids in a folded protein
F. oil molecules in liquid oil

Answer 1

Ans ) A is correct option ,two strands of DNA double helix are held together by hydrogen bond between the bases attach to the two strands.

B is correct option,head of phospholipid in a bilayer is held together by hydrogen bond with water.

C is correct option,water molecule in liquid water are held together by hydrogen bond.

D is not correct option , tails of phospholipid in a bilayer are held together by vander waals forces.

E is not correct option, amino acid in a folded protein are held together by peptide bonds.

F is not correct option, oil molecules in liquid oil is not held together.