Membrane proteins can serve a variety of key functions:
Junctions – Serve to connect and join two cells together.
Enzymes – Fixing to membranes localises metabolic pathways.
Transport – Responsible for facilitated diffusion and active transport.
Recognition – May function as markers for cellular identification.
The answer is c
Hoped I help
1. the hearts job is to propel blood throughout the body
2. i think the lungs trade CO2 for O2
3. they would go into hypothermic shock or something:p
The correct answer is Nucleic Acids.
Explanation: Nucleic acids - macromolecules containing hydrogen, oxygen, nitrogen, carbon and phosphorus and are associated with organism's genetic code.