Differentiate between exergonic and endergonic in terms of free-energy calculations
What will be an ideal response?
Answer: A positive change in free energy (ΔG0') means the reaction needs energy input to occur (called endergonic), whereas a negative ΔG0' needs no energy input and actually releases excess energy (called exergonic).
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The immunologic technique involving the transfer of proteins separated by electrophoresis to nitrocellulose sheets is ________.
A. immunoblotting B. complement fixation C. direct immunofluorescence D. immunoelectrophoresis
Somatostatin is secreted by
a. pancreatic islet cells. b. the thyroid gland. c. the pituitary gland. d. the adrenal medulla. e. the adrenal cortex
Which important discovery in the early 1900s enhanced food production, thus increasing human population growth?
a. cultivation of rice b. cultivation of wheat c. the wheel d. synthetic fertilizer e. penicillin
The development of normal maternal behavior in female mice depends on interactions between the female and her young and the presence of a gene called fosB. In mice with functional fosB genes, a sequence of events occurs after babies are born.
Arrange the events in their normal sequence following the birth of baby mice for a wildtype female. ___ Female crouches over young and retrieves them if they leave the nest. ___ Auditory, olfactory, and tactile signals about the young are sent to the hypothalamus. ___ Neural circuitry within the hypothalamus is modified, facilitating maternal behavior. ___ Female inspects newborns. ___ The gene fosB is activated, producing protein that activates other genes.