Which of the following statements about the cell membrane is FALSE? Select all that apply.
A. The cell membrane is mainly composed of phospholipids and proteins.
B. All materials can pass freely back and forth across the membrane.
C. Water will repel off of the surface of the cell membrane because the phospholipid heads are hydrophobic
D. The structure of the cell membrane is well-suited for maintaining homeostasis.

B

Explanation:

That is the answer for this question.

hydroxyl -oh

alcohols, always polar, can form hydrogen bonds with h2o molecules

carboxyl -cooh  

cargoxylic acids, has acidic properties which is a source of hydrogen ions, found in cells in ionized for with a charge of oh-1

carbonyl > co

ketone if within skeleton, aldehyde if group is at the end of skeleton, k & a may be structural isomers, it determines 2 sugars (ketose & aldose)

amino -nh2

amines, acts as a base, it can pick up h+ ions from surrounding solution, ionized with charge of 1+

methyl ch2

addition to rna/dna affects and gene expression

phosphate -opo3 ²⁻

organic phosphates, contributes to negative charge to, molecule that it is a part of, and potential to react with h20

sulfhydryl -sh

thiols, cross-linking stabilize the protein, and it is structure

answer; /// the correct )