In the Cell Membrane,the Hydrophilic Part of the Phospholipid Molecule

question 92

Multiple Choice

In the cell membrane,the hydrophilic part of the phospholipid molecule:

• A) faces the exterior of the cell.
• B) faces the interior of the cell.
• C) is in the center of the phospholipid bilayer.
• D) is both A and B.

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Definitions:

Hydrogen Bonding

A weak bond between two molecules resulting from an electrostatic attraction between a proton in one molecule and an electronegative atom in the other.

Adenine

A purine nucleobase fundamental to DNA and RNA, vital for energy transfer in cells and protein synthesis.

Thymine

A pyrimidine nucleobase that pairs with adenine in DNA, characterized by its single ring structure.

Hydrogen Bonding

A type of weak chemical bond that occurs when hydrogen, which is bonded to a more electronegative atom, is attracted to another electronegative atom.