Please answer and explain the following: 2. Indicate whether the following state
ID: 63929 • Letter: P
Question
Please answer and explain the following:
2. Indicate whether the following statements are true or false. (a) CO2 and O2 are water-soluble molecules that diffuse freely across cell membranes. (b) The differences in permeability between artificial lipid bilayers and cell membranes arise from variations in phospholipid content. (e) Transporters are similar to channels, except that they are larger, allowing folded proteins as well as smaller organic molecules to pass through them. (d) Cells expend energy in the form of ATP hydrolysis so as to maintain ion concentrations that differ from those found outside the cell.Explanation / Answer
a) Co2 and O2 are water soluble molecules that diffuse freely across cell membranes is true.
b) the difference in permeability between artifical lipid bilayers and cell membranes arise from variations in phospholipid content is wrong
c) Transporters are similiar to channels, except tha they are larger allowing folded proteins as well as smaller organic molecuels to pass through them is true.
d) cells expend energy in the form of ATP hydrolysis so to maintain ion concentrations that differ from those outside the cell is true.