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What property of amino acids separates them into different groupings?
The properties of the 'R' groups.
What can the hydroxyl group in Tyrosine form?
Hydrogen bonds.
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p.1
Classification of Amino Acids

What property of amino acids separates them into different groupings?

The properties of the 'R' groups.

p.5
Hydrogen Bond Formation in Polar Amino Acids

What can the hydroxyl group in Tyrosine form?

Hydrogen bonds.

p.2
Classification of Amino Acids

How many basic groups can common amino acids be classified into?

Five basic groups.

p.8
Polar Uncharged Amino Acids

What type of amino acids are polar and uncharged?

Hydrophilic amino acids.

p.6
Negatively Charged Amino Acids

What is the characteristic charge of acidic amino acids at cellular pH?

Negatively charged.

p.9
Special Properties of Glycine and Proline

Which amino acids are considered to have special properties?

Proline, glycine, and cysteine.

p.5
Aromatic Amino Acids

What functional group does Tyrosine contain?

A hydroxyl group.

p.3
Nonpolar Aliphatic Amino Acids

What does aliphatic mean in terms of solubility?

It means lipophilic, or that it dissolves in lipids and detergents.

p.7
Positively Charged Amino Acids

What type of environment do basic amino acids prefer due to their polar nature?

Aqueous environments.

p.8
Hydrogen Bond Formation in Polar Amino Acids

Why are polar and uncharged amino acids more soluble than non-polar amino acids?

Due to hydrogen bond formation.

p.7
Positively Charged Amino Acids

What are hydrophilic amino acids that are positively charged at cellular pH called?

Basic amino acids.

p.3
Nonpolar Aliphatic Amino Acids

How can you remember the association of aliphatic with fat?

By thinking of 'phat' which sounds like 'fat'.

p.3
Nonpolar Aliphatic Amino Acids

What type of R groups do non-polar aliphatic amino acids have?

They have non-polar aliphatic R groups.

p.3
Special Properties of Glycine and Proline

What is unique about glycine among amino acids?

It is the smallest amino acid and is neither hydrophobic nor hydrophilic.

p.9
Cysteine and Disulfide Bonds

What functional group is associated with cysteine?

Sulfhydryl group.

p.6
Negatively Charged Amino Acids

What type of amino acids are considered hydrophilic?

Polar amino acids.

p.7
Positively Charged Amino Acids

Are basic amino acids hydrophilic or hydrophobic?

Hydrophilic.

p.2
Classification of Amino Acids

What are the five basic groups of amino acids based on their R substituents?

Nonpolar aliphatic, aromatic, polar uncharged, positively charged, negatively charged.

p.9
Cysteine and Disulfide Bonds

What happens to a disulfide bond in its reduced state?

It can break, reverting to two sulfhydryl groups.

p.5
Aromatic Amino Acids

What type of amino acids are hydrophobic (non-polar) with aromatic R groups?

Aromatic amino acids.

p.4
Nonpolar Aliphatic Amino Acids

What element does Methionine contain?

Sulphur (S).

p.4
Nonpolar Aliphatic Amino Acids

Which amino acids have branched side chains?

Valine, Leucine, and Isoleucine.

p.2
Nonpolar Aliphatic Amino Acids

How many nonpolar, aliphatic amino acids are there?

Seven.

p.2
Polar Uncharged Amino Acids

How many polar, uncharged amino acids are there?

Five.

p.4
Hydrophobicity and Hydrocarbon Chains

How does hydrophobicity change with the length of the hydrocarbon chain?

Hydrophobicity increases with increasing length of the hydrocarbon chain.

p.6
Negatively Charged Amino Acids

At what pH are these amino acids negatively charged?

At cellular pH.

p.9
Cysteine and Disulfide Bonds

What is the oxidized state of cysteine?

When cysteine forms a disulfide bond.

p.2
Aromatic Amino Acids

How many aromatic amino acids are there?

Three.

p.6
Negatively Charged Amino Acids

What are hydrophilic amino acids that are negatively charged at cellular pH called?

Acidic amino acids.

p.7
Positively Charged Amino Acids

What is the characteristic charge of basic amino acids at cellular pH?

Positively charged.

p.9
Cysteine and Disulfide Bonds

What type of bond can cysteine form with another cysteine?

Covalent bonds, resulting in a disulfide bond.

p.3
Special Properties of Glycine and Proline

What distinguishes proline from other amino acids?

Proline has a unique structure that sets it apart from all other amino acids.

p.2
Positively Charged Amino Acids

How many positively charged amino acids are there?

Three.

p.2
Negatively Charged Amino Acids

How many negatively charged amino acids are there?

Two.

p.9
Cysteine and Disulfide Bonds

What does OIL RIG stand for in the context of redox reactions?

Oxidation is Loss, Reduction is Gain.

Study Smarter, Not Harder
Study Smarter, Not Harder