Stomata close as a result of water moving into guard cells
____________________ Indicate whether the statement is true or false.
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Which of the following can be used to estimate the number of microorganisms in a culture?
A. Measurements of microbial biomass B. Direct counts of microbial cells C. Counts of viable cells using colony growth procedures D. All of the choices are correct.
Why might it be easier to determine the bacterium that caused pneumonia than one that caused a wound infection?
A. There are very few microorganisms that can cause pneumonia, while there are many that can cause wound infections. B. Bacteria that cause pneumonia can be identified with few tests. Many bacteria are normally found on the skin and may be in the wound complicationg indentification of the pathogen. C. We have much better tests for bacteria in the lungs than we do in wounds. D. The techniques of 16S rRNA sequencing are easier to perform on a sample taken from the lungs than a sample taken from a wound.
Which genome editing tool is most versatile and easy to use?
A) TALEN technology B) Zinc finger nuclease technology C) CRISRP-Cas9 system D) Homologous recombination
Oxygen, carbon dioxide, and other small nonpolar
molecules cross the plasma membrane through the process(es) of a. osmosis. b. diffusion. c. endocytosis and exocytosis. d. active transport. e. facilitated diffusion.