Podcast
Questions and Answers
What is the main reason living systems do not violate the second law of thermodynamics?
What is the main reason living systems do not violate the second law of thermodynamics?
- They constantly import energy to maintain non-equilibrium. (correct)
- They do not produce entropy.
- They are in a state of thermal equilibrium.
- They do not undergo chemical reactions.
What is the purpose of coupling exergonic and endergonic reactions in living systems?
What is the purpose of coupling exergonic and endergonic reactions in living systems?
- To decrease the energy of the system.
- To increase the entropy of the system.
- To allow unfavourable endergonic reactions to occur. (correct)
- To maintain thermal equilibrium.
What is the general mechanism for maintaining homeostasis in living systems?
What is the general mechanism for maintaining homeostasis in living systems?
- Negative feedback loops. (correct)
- Energy production.
- Positive feedback loops.
- Chemical reactions.
What is the definition of evolution according to Darwin?
What is the definition of evolution according to Darwin?
What is required for a change to be heritable in living systems?
What is required for a change to be heritable in living systems?
What is the main process that contributes to evolutionary change?
What is the main process that contributes to evolutionary change?
What is the term for the different forms of a particular gene?
What is the term for the different forms of a particular gene?
What is the process that changes the distribution of alleles in a population due to chance events?
What is the process that changes the distribution of alleles in a population due to chance events?
What is the term for the ability of living systems to maintain a steady internal environment regardless of their external environment?
What is the term for the ability of living systems to maintain a steady internal environment regardless of their external environment?
What is the result of the accumulation of mutations in the DNA of germ cells?
What is the result of the accumulation of mutations in the DNA of germ cells?
What is the main reason for describing life or living things by their common characteristics?
What is the main reason for describing life or living things by their common characteristics?
Which of the following is NOT a characteristic shared by living things?
Which of the following is NOT a characteristic shared by living things?
What is the hierarchical level of organisation exhibited by living systems?
What is the hierarchical level of organisation exhibited by living systems?
What is the tendency of isolated systems left to spontaneous evolution?
What is the tendency of isolated systems left to spontaneous evolution?
What is the NAZA definition of life?
What is the NAZA definition of life?
What is entropy associated with?
What is entropy associated with?
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