O2 co2 sugars vitamins na k h2o are all molecules that need, Ask an Expert

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O2, CO2, Sugars, Vitamins Na+, K+, H2O are all molecules that need to be constantly entering and exiting the cell. Which of these molecules will be able to passively diffuse across the plasma membrane and why? Of the remaining molecules why cant they pass through the plasma membrane? How do they enter and leave the cell?

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