Podcast
Questions and Answers
What percentage of the human body is made up of water?
What percentage of the human body is made up of water?
- 70% (correct)
- 80%
- 90%
- 97%
What elements account for approximately 97% of the dry weight of the human body?
What elements account for approximately 97% of the dry weight of the human body?
- H, O, N, P, Ca, S
- C, H, O, N, P, Ca, S (correct)
- C, H, O, N, P
- C, H, O, N, P, Ca
What was the purpose of the Miller-Urey experiment?
What was the purpose of the Miller-Urey experiment?
- To create life forms
- To study the structure of DNA
- To analyze the atmosphere of early Earth
- To synthesize biological molecules (correct)
What type of compounds made up the atmosphere of the early Earth?
What type of compounds made up the atmosphere of the early Earth?
What was the duration of the Miller-Urey experiment?
What was the duration of the Miller-Urey experiment?
What was the energy source used in the Miller-Urey experiment?
What was the energy source used in the Miller-Urey experiment?
What type of compounds were found in the resulting solution?
What type of compounds were found in the resulting solution?
What is the maximum temperature at which hydrothermal vents emit solutions of metal sulfides?
What is the maximum temperature at which hydrothermal vents emit solutions of metal sulfides?
What is the process by which polymers of biomolecules are formed from monomers?
What is the process by which polymers of biomolecules are formed from monomers?
What is required for the replication of some biomolecules?
What is required for the replication of some biomolecules?
What characterizes different types of biomolecules?
What characterizes different types of biomolecules?
What is the process by which polymers are broken down into monomers?
What is the process by which polymers are broken down into monomers?
What is one of the advantages of compartmentalization in cells?
What is one of the advantages of compartmentalization in cells?
What is a characteristic of prokaryotes?
What is a characteristic of prokaryotes?
What is a benefit of maintaining high local concentrations of reactants in cells?
What is a benefit of maintaining high local concentrations of reactants in cells?
What is a characteristic of eukaryotes?
What is a characteristic of eukaryotes?
Why are prokaryotes found in a wide range of habitats?
Why are prokaryotes found in a wide range of habitats?
What is a consequence of compartmentalization in cells?
What is a consequence of compartmentalization in cells?
