Final answer:
Ionic bonds are less important and weaker in living organisms due to cells being largely hydrophobic and crystals being rare in living organisms.
Step-by-step explanation:
Ionic bonds are less important and weaker in living organisms for multiple reasons:
- Cells are mostly water, which interferes with ionic bonds.
- Cells are largely hydrophobic.
- Ionic bonds form crystals, which are not typically present in living organisms.
Therefore, the correct answer is option 5, which states that ionic bonds are less important and weaker in living organisms because cells are largely hydrophobic and they form crystals.