A neutral atom with an atomic number of 15 will have ____ electrons in its outermost energy level.
A. 3
B. 5
C. 8
D. 15
B. 5
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List the four macromolecules that make up cells and give a brief description of the structure and function of each
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Cells of the pancreas will incorporate radioactively labeled amino acids into proteins. This "tagging" of newly synthesized proteins enables a researcher to track their location. In this case, we are tracking an enzyme secreted by pancreatic cells. What is its most likely pathway?
a) ER -> lysosomes -> vesicles that fuse with plasma membrane b) Golgi -> ER -> lysosomes c) ER -> Golgi -> vesicles that fuse with plasma membrane d) ER -> Golgi -> nucleus e) nucleus -> ER -> Golgi
As a bacterium approaches a food source, one would expect
a. runs to become more frequent. b. flagella to stop spinning. c. tumbles to become more frequent. d. flagella to rotate clockwise more frequently.
What type of virus uses reverse transcriptase to convert viral RNA into DNA
What will be an ideal response?