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Biology 101 Ch. 3
Flashcards for Professor Abu's Class at Gustavus
17
Biology
Undergraduate 1
09/14/2012

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Cards

Term
How many amino acids are there?
Definition
20
Term
What are the two components of an amino acids?
Definition
An Amino Group and a Carboxyl Group
Term
What does the Amino group do in water to attract protons?
Definition
It acts as a base
Term
What does the entire structure of an Amino acid contain?
Definition
An H atom, an Amino and Carboxyl group, and an R Group
Term
A hydrophobic molecule is Non-polar or Polar?
Definition
Non-polar
Term
A hydrophilic molecule is non-polar or polar?
Definition
Polar
Term
Is Hydrolysis Exergonic or endergonic?
Definition
Exergonic
Term
Is a condensation reaction exergonic or endergonic?
Definition
Endergonic
Term
What is a peptide bond?
Definition
It is a bond between a carboxyl group and an amino group
Term
What are multiple amino acids linked together called?
Definition
Polypeptide
Term
What is the N-Terminus?
Definition
The starting point of synthesis of proteins. Location of Amino Group
Term
What are amino acids also called?
Definition
Residue
Term
What do amino acids make?
Definition
Proteins
Term
What is a primary structure?
Definition
a unique sequence of amino acids
Term

What is a Secondary structure composed of?

What bond holds it together?

Definition

Multiple strands of Primary structures.

Hydrogen bonds between carbonyl's oxygen and amino's hydrogen

Term

What is a Tertiary Structure?

What bonds hold it together?

Definition

Multiple Secondary structures.

Held together by bonds between R Groups...

1. Hydrogen Bonds

2. Hydrophobic Interactions

3. Van Der Waals Intereactions

4. Covalent Bonding of Sulfurs

5. Ionic Bonding

Term
What are covalent bonds between sulfurs called?
Definition
disulfide bridges
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