Write a sentence explaining the connection between each pair of words:
1. cell membrane, cytoplasm
2. lipids, proteins
3. nucleus, dna

1) The cell membrane surrounds the cytoplasm and prevents it from spreading out of the cell
2) Albumin which is a protein transport free fatty acids, which result from lipid digestion, in the blood stream by binding to it
3) The nucleus contains the chromosomes which carry the DNA on them