STRUCTURE OF LIPIDS Flashcards

1
Q

Unlike polysaccharides and proteins, lipids are
not polymers—they lack a _________.

A

repeating monomeric unit

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2
Q

Lipids are made from two molecules: ______ and _________

A

a. Glycerol
b. Fatty Acids

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3
Q

A ___________ is made up of three carbon atoms with a hydroxyl group attached to it and hydrogen atoms occupying the remaining
positions.

A

glycerol molecule

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4
Q

Fatty acids consist of ____________ and a ____________.

A

a. an acid group at one end
of the molecule
b. hydrocarbon chain,
which is usually denoted by the letter ‘R’

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5
Q

A fatty acid is _______ if every possible bond is made with a Hydrogen atom, such that there exist no C=C bonds.

A

saturated

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6
Q

__________ fatty acids do
contain C=C bonds.

A

unsaturated

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7
Q

are lipids consisting of one
glycerol molecule bonded with three fatty acid
molecules.

A

Triglycerides

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8
Q

The bonds between the molecules of triglycerides are
covalent and are called ________ ?

A

ether bonds

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9
Q

Triglycerides are formed during a ______ __________?

A

condensation reaction

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10
Q

The charges are evenly distributed around the
molecule so hydrogen bonds to not form with water molecules making them _________________.

A

insoluble in water

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