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Chapter 5
The Structure and Function of Large Biological Molecules
15
Biology
Undergraduate 1
03/21/2010

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Cards

Term
Most Macromolecules are ______, built from _____
Definition
Polymers; monomers
Term
The critically important large molecules of all living things, from bacteria to elephants, fall into what four main classes?
Definition
carbohydrates, lipids, proteins, and nucleic acids.
Term
On the molecular scale, carbohydrates, proteins, and nucleic acids are huge and thus called __________.
Definition
macromolecules
Term
Define: macromolecule
Definition

A giant molecule formed by the joining of smaller molecules, usually by a condensation reaction.

 

Polysaccharides, proteins, and nucleic acids are macromolecules. 

Term
What helps explain how a large biological molecule works?
Definition
The architecture of the molecule
Term
True or False; Carbohydrates, lipids, proteins, and nucleic acids are all polymers?
Definition
False, lipids are not.
Term
Define: Polymer
Definition

A long molecule consisting of many similar or identical building blocks linked by covalent bonds, much as a train consists of a chain of cars. 

 

[image]

Term
What are Monomers?
Definition

The repeating units that serve as the building blocks of a polymer. 

 

Some of the molecules that serve as monomers also have other functions of their own.

Term
Polymers are comprised of what?
Definition
Monomers
Term

What is condensation reaction?

 

(aka dehydration reaction)

Definition
A reaction in which two molecules become covalently bonded to each other thorugh the loss of a small molecule, usually water, in which case it is also called a dehydration reaction.
Term
About how many monmers are there?
Definition
40-50
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