If photosynthetic eukaryotic cells are provided with CO2 synthesized with heavy oxygen (18O), the 18O
label may be found in all but one compound. That compound is
a. 3-phosphoglycerate.
b. cellulose.
c. glucose.
d. O2 gas.
e. RuBP (Ribulose bisphosphate).
D
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In fruit fly larvae, flies with which genotype possess the rover phenotype?
a. recessive alleles for foraging gene b. dominant allele for foraging gene c. recessive alleles for seeking gene d. dominant allele for seeking gene e. The gene for this behavior has not been discovered.
During the process of gas exchange, gases move ____
a. by active transport b. down electrical gradients c. through membrane channels d. by facilitated diffusion e. down partial pressure gradients
How does the environment limit population growth?
What will be an ideal response?
Which agents exert antimicrobial activity via oligodynamic action?
a) Aldehydes b) Heavy metals c) Peroxygens d) Nitrates