Which one of the following damages the plasma membrane of a cell and was first used by Lister to control surgical infections?
a) Halogens
b) Ozone
c) Phenolics
d) Ethylene oxide
Ans: c) Phenolics
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People with cystic fibrosis often suffer from a lack of oxygen. What symptom is a direct result
of a lack of oxygen?
a. lack of energy b. hyperactivity c. nervous disorders d. kidney malfunction
To address the problem of preserving biodiversity, biologist Norman Myers and colleagues have identified various "hot spots" around the world. What exactly is a hot spot?
A) geographic areas that are warm year-round and never experience freezing temperatures B) geographic regions where endangered species and humans connect with one another regularly on a regular basis C) world areas with significantly higher extinction rates than the background extinction D) global areas where the climate and geological events resulted in large numbers of species
What describes the structure or function of the pancreas?
What will be an ideal response?
When Calvin injected 14C labeled CO2 into cultures of green algae, what led him to conclude that rubisco adds CO2 to ribulose bisphosphate in the Calvin cycle?
A. radioactivity appeared last in ribulose bisphosphate. B. radioactivity appeared last in 3-phosphoglycerate C. radioactivity appeared last in glucose. D. radioactivity first appeared in ribulose bisphosphate. E. radioactivity first appeared in glucose. F. radioactivity first appeared in 3-phosphoglycerate.