What types of substances pass easily through living cell membranes?

Answer 1

oxygen and carbon dioxide

Answer 2

Cell membranes are most permeable to non-polar molecules(eg. lipids and cholesterol). Polar molecules can also cross the membrane but require specific transporters, carriers,or channels(eg. sodium, potassium, chlorine, calcium, magnesium, glucose, amino acids, etc...).

Answer 3

glucose is one of them, just trying to find out how!

Edit: Also Water, and Dissolved Gasses.

Glucose can pass through because it is small enough to fit through. Molecules like starch cannot, because it is too big.

Answer 4

If the substance is small and its nonpolar then ill be able to pass. For example O2 and CO2

Answer 5

There are tiny pores in the cell membranes so waste and nutrients can pass through.

Answer 6

waste the cell produces