Which of the following molecules is the most likely to cross the membrane by simple diffusion?

Hello, I need help with these six questions:1) Which of the following molecules is the most likely to cross the membrane by simple diffusion?a) glucose.b) Na+c) A steroid.d) An amino acid.e) A peripheral protein.2) Cellular membranes are fluid because:a) small amounts of water passing through the membranes can make them[…

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