Topic 1 Flashcards
1
Q
4 Major Classes of Biological Molecules
A
1 Amino Acids
2. Carbohydrates (monosaccharides)
3. Nucleotides
4. Lipids
2
Q
Amino Acids Contain
A
- amino group
- carboxylic acid
- side chain
3
Q
Amino Acids
A
- monomoers that link sequentially to form polymers
- changing their shape can change their function
4
Q
Spontaneous Reactions
A
- when delta H is < 0 and delta S > 0
- when delta H is (-) = favourable
- when delta S is (+) = favourable
5
Q
Major Biological Polymers
A
- Proteins
- Polysaccharides
- Nucleic Acids
6
Q
Protein Polymer
A
- amino acids
7
Q
Polysaccahride Polymer
A
- carbohydrates
8
Q
Nucleic Acid Polymer
A
- nucleotides
9
Q
Thermodynamic Equation
A
- G=H-TS
10
Q
Enthalpy (H)
A
- the heat content of a system (J/mol)
11
Q
Entropy (S)
A
- a measure of the system’s disorder/randomness
12
Q
Free Energy (G)
A
- a measure of the free energy of a system based on H+S
- when G<0= spontaneous/ exergonic
- when G>0= non-spontaneous/ endergonic
