Which molecule can directly pass through the phospholipid bilayer of the cell membrane? Multiple ChoiceSodiumGlucosePotassiumCarbon dioxideCalcium

Which of the following carbon based biomolecules is NOT directly involved in regulating what enters or leaves a cell through the cell membrane?Group of answer choicesNucleic AcidsCarbohydratesProteinsLipids

Which of these molecules is correctly matched with its method of movement through the cell membrane?Multiple ChoiceGlucose and amino acid molecules — pass through membrane channels.Large, water-soluble molecules — transported by carrier-mediated processes.All of the choices are correctly paired.Lipid-soluble molecules — pass through membrane channels.Small, water-soluble molecules (ions) — dissolve in double phospholipid layer.

The phospholipid bilayer of the cell membrane is like a

What molecule would be unable to diffuse through a cell membrane?Multiple choice question.glycogenoxygenfatty acidscarbon dioxide

It is difficult for many molecules to diffuse through the phospholipid bilayer of a plasma membrane without the aid of a membrane transport protein. A molecule that succeeds in doing this is likely to be