True or False: Relative to C3 plants, the rates of photosynthetic production of CAM plants are high because they can store carbon until it is needed
A. true
B. false
B
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Which of the following cell types would have the highest concentration of motor proteins?
A. liver cell B. mammary cell C. hormone-secreting cell D. muscle cell E. nerve cell
An electron microscope must use electromagnet "lenses" shaped like donuts to direct the electrons onto the specimen. Why?
A. Electrons are particles-there are also particles in air. Without a vacuum, the electrons would strike and be scattered by the atoms/particles within the air. B. Because electrons are highly radioactive, and the chamber must be completely sealed to prevent them from escaping and contaminating the lab area. C. This is the method for fixing the specimen to the slide grid for an electron microscope. Without fixing the specimen by vacuum, it would slide off and we wouldn't be able to visualize it. D. All of the above are true.
Because RNA is single-stranded, it does not participate in the regulation of gene expression
a. True b. False
Specimen collection
A. does not require special handling. B. must be done under sterile conditions. C. is always done by a medical professional. D. must utilize aseptic techniques.