Metabolic pathways in cells are typically far from equilibrium. Which of the following processes tend(s) to keep these pathways away from equilibrium?
a. the continuous removal of the products of a pathway to be used in other reactions
b. an input of free energy from outside the pathway
c. an input of heat from the environment
d. the 1st and 2nd listed responses are correct
e. the 1st, 2nd, and 3rd listed responses are correct
Ans: d. the 1st and 2nd listed responses are correct
You might also like to view...
Streptomycin, an aminoglycoside, inhibits protein synthesis
A. by preventing the formation of the initiation complex. B. by binding to the ribosome, preventing translocation due to interference with the attachment of mRNA. C. by interfering with both the initiation and elongation stages of translation. D. by binding to the tRNA preventing peptide bond formation between amino acids.
A person with fair skin produces less __________ than a person with dark skin
a. sebum b. keratin c. melanin d. melatonin e. mucous
What does phylogenetic evidence tell us about protostomes?
A. There was one transition from land to water. B. There were multiple transitions from land to water. C. There was one transition from water to land. D. There were multiple transitions from water to land.
__________ selection is the type of natural selection that acts on characteristics that determine reproductive success.
a) Reproductive b) Sexual c) Endocrine d) Reducing e) Hormonal