Chemical reactions are classified as exergonic if ________
a. they involve gain or loss of atoms
b. they need a boost of energy to begin
c. they end with a net release of energy
d. the bonds in the reactants have more energy than the bonds in the products
c
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In many organisms, one set of chromosomes comes from the maternal parent, while the other set comes from the paternal parent. Similar chromosomes in these sets are said to be _________
A. morphs B. alleles C. haploid D. homologs E. physiological traits
All of the following are true about a partition coefficient except
A) it is the ratio of solubility in an organic solvent to solubility in water. B) it can be used to predict the probability that an amino acid is part of a transmembrane region of a protein. C) it is high for a molecule that readily crosses membranes by simple diffusion. D) it is the concentration at which the rate of transport is half maximal. E) it depends on the polarity of the molecule.
Which of the following implies movement with regard for direction?
A. Taxis only B. Kinesis only C. Migration only D. Taxis and migration only E. Taxis, migration, and kinesis
Homologous pairs of chromosomes are lined up independently of other such pairs during _____.
a. metaphase I b. telophase II c. prophase II d. metaphase II e. anaphase I