In photosynthesis, gaseous molecular oxygen (O2) is released. This comes from a compound that goes into photosynthesis. Which compound is it?
a) glucose (C6H12O6)
b) carbon dioxide (CO2)
c) ATP
d) gaseous molecular oxygen (O2)
e) water (H2O)
Ans: e) water (H2O)
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Working with biosafety Level 3 agents requires:
a. U.S. Department of Agriculture (USDA) credentials and a postgraduate degree in microbiology or a related field. b. laboratory design features that control air movement. c. personnel to wear protective clothing and devices and enter a decontaminating chamber before leaving. d. workers to have blood samples routinely tested to rule out infection or contamina-tion.
The main reason certain seeds germinate near the soil surface rather than deep in the soil is
A. they need additional oxygen. B. they are then more aware of their surroundings. C. they require light to germinate. D. they have water deprivation. E. they are sensitive to the cold temperatures of the soil.
A ____ consists of an ancestor and ALL its decendants.
A. Polyphyletic group B. Cladogram C. Monophyletic group D. Paraphyletic group
You label cells with a radioactive isotope of sulfur (35S). The only molecules that would be radioactively labeled in these cells are
A. proteins B. nucleic acids C. lipids D. carbohydrates