Chapter 11 Flashcards

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1
Q

amphipathic

A

Having both hydrophobic and hydrophilic regions, as in a

phospholipid or a detergent molecule

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2
Q

cholesterol

A

Short, rigid lipid molecule present in large amounts in the
plasma membranes of animal cells, where it makes the lipid
bilayer less flexible

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3
Q

fat droplet

A

Large cluster of hydrophobic fats or oils that forms inside

the cells.

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4
Q

lipid bilayer

A

Thin pair of closely juxtaposed sheets, composed mainly of
phospholipid molecules, that forms the structural basis for
all cell membranes.

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5
Q

membrane protein

A

A protein associated with the lipid bilayer of a cell

membrane.

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6
Q

phosphatidylcholine

A

Common phospholipid present in abundance in most cell
membranes; uses choline attached to a phosphate as its
head group

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7
Q

phospholipid

A

A major type of lipid molecule in many cell
membranes. Generally composed of two fatty
acid tails linked to one of a variety of phosphatecontaining polar group

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8
Q

plasma membrane

A

The protein-containing lipid bilayer that surrounds a living
cell

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9
Q

saturated

A

Describes an organic molecule that contains a full
complement of hydrogen; in other words, no double or
triple carbon–carbon bonds.

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10
Q

unsaturated

A

Describes an organic molecule that contains one or more

double or triple bonds between its carbon atoms.

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