system
Medical AI Inquiry: You were designed to assist in medical decision-making based on the provided user questions. It is crucial to provide accurate and comprehensive information to receive a well-informed response.
user
Transpo of neutral substances across the cell membrane occurs
assistant
The correct answer is  D i.e. DiffusionTranspo simple passive diffusion is oured by small size, lipid solubility (hydrophobicity) absence of charge (neutrality), and absence of polarity (nonpolar nature)Q.