Chapter 14

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________ or more amino acids constitute a protein.

50

A Zwitter ion is a molecular species that exist as a(n) ______ and a(n) ______ one time.

Cation/anion

. _________ proteins serve to give structure to body organs

Fibrous

___________ proteins typically act as transporters and enzymes

Globular

A complex of multiple protein subunits is referred to as a ______ structure.

Quaternary

Amino acids are said to be amphoteric because:

They are acidic and basic

The __________ is the building block for all proteins

amino acid

Amino acids are good biological buffers because of their ________ nature.

amphoteric

A peptide bond forms through a _______ reaction between two amino acids.

dehydration

Within the folds of both hemoglobin and myoglobin is a large porphyrin based compound that carries oxygen to (and carbon dioxide from) our cells. This compound is named _____________.

heme

What phenomenon primarily leads to secondary protein structure?

hydrogen bonding

The type of bond that links together two amino acids is call a(n)________.

peptide bond

Denaturation is the loss of all protein structure except:

primary

Amino acids are able to function as ___________ in the body because they are amphoteric

pseudo-buffers

The pleated sheet is an example of:

secondary

Hydrophobic and hydrophilic interactions in a protein lead to _________ structure of the protein

tertiary

The primary structure is:

the amino acid sequence of a protein


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