BCH 441 EXAM 1 QUESTIONS AND VERIFIED COMPLETE
SOLUTIONS 100% CORRECTLY ANSWERED
3 properties of living systems
1. Complicated and compartmentalized
2. engaged in energy generation
3. capable of self-replicating
main elements of life
Carbon, hydrogen, oxygen, nitrogen (CHON)
2 properties of biomolecules
1. They encode information
2. They are held together by a combo of weak and strong forces
Two ways biomolecules encode information
1. There are different types of monomers
2. Having those monomers in different orders
Strong forces that hold biomolecules together
Covalent bonds
Weak forces holding biomolecules together (weakest to strongest)
Non-covalent bonds:
1. Van der Waals
2. Hydrogen bonds
, 3. Ionic
4. Hydrophobic interactions
4 classes of biomolecules
proteins
carbohydrates
nucleic acids
lipids
Properties of eukaryotes
have a nucleus, complex genomes, compartmentalization (organelles)
Properties of prokaryotes
no compartments, fewer genes and one circular chromosome
structurally water is
bent and polar
water is less dense as a
solid than a liquid
what defines how water interacts with ionic, polar, hydrophobic, and amphiphilic
solutes
Its high dielectric constant
pH =
the measure of the proton concentration
pH = -log [H+]
Henderson-Hasselbalch equation
pH = pKa + log [A-]/[HA]
SOLUTIONS 100% CORRECTLY ANSWERED
3 properties of living systems
1. Complicated and compartmentalized
2. engaged in energy generation
3. capable of self-replicating
main elements of life
Carbon, hydrogen, oxygen, nitrogen (CHON)
2 properties of biomolecules
1. They encode information
2. They are held together by a combo of weak and strong forces
Two ways biomolecules encode information
1. There are different types of monomers
2. Having those monomers in different orders
Strong forces that hold biomolecules together
Covalent bonds
Weak forces holding biomolecules together (weakest to strongest)
Non-covalent bonds:
1. Van der Waals
2. Hydrogen bonds
, 3. Ionic
4. Hydrophobic interactions
4 classes of biomolecules
proteins
carbohydrates
nucleic acids
lipids
Properties of eukaryotes
have a nucleus, complex genomes, compartmentalization (organelles)
Properties of prokaryotes
no compartments, fewer genes and one circular chromosome
structurally water is
bent and polar
water is less dense as a
solid than a liquid
what defines how water interacts with ionic, polar, hydrophobic, and amphiphilic
solutes
Its high dielectric constant
pH =
the measure of the proton concentration
pH = -log [H+]
Henderson-Hasselbalch equation
pH = pKa + log [A-]/[HA]
