For the lipids within the bilayer thatcomprise the plasma membrane:O The hydrophilic ends face outside(extracellular/exoplasmic face) and inside(cytoplasmic face) of the cells, withhydrophobic ends buried in the center ofthe lipid bilayer.The hydrophobic ends face outside(extracellular/exoplasmicface) and inside(cytoplasmic face) of the cells, withhydrophilic ends buried in the center of thelipid bilayer.The hydrophilic ends face the outside(extracellular/exoplasmic face) of the cellsand the hydrophobic ends face inside(cytoplasmic face) of the cells.O Hydrophobic and hydrophilic ends faceoutside (extracellular/exoplasmic face) andinside (cytoplasmic face) of the cellsrandomly.The hydrophobic ends face the outside(extracellular/exoplasmic face) of the cells,the hydrophilic ends face inside(cytoplasmic face) of the cells.

Answered: For the lipids within the bilayer that…

Human Anatomy & Physiology (11th Edition)

11th Edition

ISBN:9780134580999

Author:Elaine N. Marieb, Katja N. Hoehn

Publisher:Elaine N. Marieb, Katja N. Hoehn

Chapter1: The Human Body: An Orientation

Section: Chapter Questions

Problem 1RQ: The correct sequence of levels forming the structural hierarchy is A. (a) organ, organ system,...

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For the lipids within the bilayer that
comprise the plasma membrane:
O The hydrophilic ends face outside
(extracellular/exoplasmic face) and inside
(cytoplasmic face) of the cells, with
hydrophobic ends buried in the center of
the lipid bilayer.
The hydrophobic ends face outside
(extracellular/exoplasmic
face) and inside
(cytoplasmic face) of the cells, with
hydrophilic ends buried in the center of the
lipid bilayer.
The hydrophilic ends face the outside
(extracellular/exoplasmic face) of the cells
and the hydrophobic ends face inside
(cytoplasmic face) of the cells.
O Hydrophobic and hydrophilic ends face
outside (extracellular/exoplasmic face) and
inside (cytoplasmic face) of the cells
randomly.
The hydrophobic ends face the outside
(extracellular/exoplasmic face) of the cells,
the hydrophilic ends face inside
(cytoplasmic face) of the cells.

Expert Solution

Step 1: Introduction and answer

Structure of cell membrane
Lipid Bilayer-2 layers of phospholipids
Phosphate head is polar (water loving)
Fatty acid tails non-polar (water fearing)
Proteins embedded in membrane.
Amphipathic lipids (containing hydrophobic & hydrophilic groups) namely Phospholipids,Cholesterol and Glycolipids.

Answer -The hydrophilic ends face outside (extracellular/exoplasmic face) and inside (cytoplasmic face) of the cells, with hydrophobic ends buried in the center of the lipid bilayer.

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