Question

Which molecule can pass freely through the lipid bilayer? A) K+ B) Na+ C) O2 D) glucose

Answer 1

Answer is 02 while K+ and Na+ requires a protein molecule for its pump and glucose is peripheral proteins found in cell surface

Answer 2

The oxygen molecule can move freely through the lipid bi layer.

Explanation:

• The lipid bi layer considers the charge and size of the substance in order to allow it to pass through.
• Just little uncharged particles can diffuse uninhibitedly through phospholipid bi layers.
• Little non polar atoms, for example, oxygen and Carbon dioxide, are solvent in the lipid bi layer and in this way can promptly cross cell layers.
• Little uncharged polar atoms, for example, water  additionally can diffuse through films, yet bigger uncharged polar particles, for example, glucose, can't.
• Charged atoms, for example,ions can't diffuse through a phospholipid bi layer paying little mind to measure; even H+ particles can't cross a lipid bi layer by free dispersion.