UGA BCMB 3100 Exam 1 – Study Guide, Practice Questions & Revision Notes
Water - correct answer ✔✔-major component of cells
-ability to dissolve a wide variety of molecules
-many biochemical reactions take place in watery environments
Shape of water - correct answer ✔✔-angled shape
-polar bonds
-polar due to uneven distribution of electrons
-hydrogen has a partial positive charge and oxygen has a partial negative charge
Hydrogen bond in water - correct answer ✔✔formed when a partially positive hydrogen atom
attracts the partially negative oxygen atom of a second water molecule
Hemoglobin - correct answer ✔✔-red blood cells carry oxygen from the lungs to tissues where
oxygen is required
-four subunit protein with an oxygen binding pigment
Interactions in water - correct answer ✔✔-solvation and desolvation
-micelle formation
-protein folding
Protein - correct answer ✔✔-composed of 20 common amino acids
amino acid structure - correct answer ✔✔-carboxylate group (-COO-)
-amino group (-NH2)
-side chain (R)
, second law of thermodynamics - correct answer ✔✔-total entropy of a system and its
surroundings always increases in a spontaneous process
Entropy (S) - correct answer ✔✔-degree of disorder in the system
-a measure of randomness
if 2 or more benzene molecules are added to water - correct answer ✔✔-bond together to
displace water molecules
-increases entropy of the system
-results from the hydrophobic effect
Hydrophobic effect - correct answer ✔✔-nonpolar solute molecules are driven together in
water not primarily because they have a high affinity for each other
-entropy driven association
-form spontaneously because the entropy increases
non covalent interactions - correct answer ✔✔-essential for proper functioning of biomolecules
-much weaker than covalent bonds
-allow for constant forming and breaking of bonds
Types of non-covalent interactions - correct answer ✔✔-electrostatic interactions
-hydrogen bonds
-van der Waals interactions
Electrostatic interactions - correct answer ✔✔-between electrical charges
-ion-ion interaction
Water - correct answer ✔✔-major component of cells
-ability to dissolve a wide variety of molecules
-many biochemical reactions take place in watery environments
Shape of water - correct answer ✔✔-angled shape
-polar bonds
-polar due to uneven distribution of electrons
-hydrogen has a partial positive charge and oxygen has a partial negative charge
Hydrogen bond in water - correct answer ✔✔formed when a partially positive hydrogen atom
attracts the partially negative oxygen atom of a second water molecule
Hemoglobin - correct answer ✔✔-red blood cells carry oxygen from the lungs to tissues where
oxygen is required
-four subunit protein with an oxygen binding pigment
Interactions in water - correct answer ✔✔-solvation and desolvation
-micelle formation
-protein folding
Protein - correct answer ✔✔-composed of 20 common amino acids
amino acid structure - correct answer ✔✔-carboxylate group (-COO-)
-amino group (-NH2)
-side chain (R)
, second law of thermodynamics - correct answer ✔✔-total entropy of a system and its
surroundings always increases in a spontaneous process
Entropy (S) - correct answer ✔✔-degree of disorder in the system
-a measure of randomness
if 2 or more benzene molecules are added to water - correct answer ✔✔-bond together to
displace water molecules
-increases entropy of the system
-results from the hydrophobic effect
Hydrophobic effect - correct answer ✔✔-nonpolar solute molecules are driven together in
water not primarily because they have a high affinity for each other
-entropy driven association
-form spontaneously because the entropy increases
non covalent interactions - correct answer ✔✔-essential for proper functioning of biomolecules
-much weaker than covalent bonds
-allow for constant forming and breaking of bonds
Types of non-covalent interactions - correct answer ✔✔-electrostatic interactions
-hydrogen bonds
-van der Waals interactions
Electrostatic interactions - correct answer ✔✔-between electrical charges
-ion-ion interaction
