Due to the directionality of polymer synthesis, proteins have distinct ________ and ________ ends.
Fill in the blank(s) with the appropriate word(s).
amino (-NH2); carboxyl (-COOH)
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The ______________ of a species is usually the result of predation, competition, and other types of interaction between species
A. habitat B. fundamental niche C. realized niche D. abiotic environment E. resource partitioning
Cells active in secreting enzymes would likely exhibit a greater amount of ____ than other cells
a. exocytosis b. osmosis c. endocytosis d. receptor proteins e. plasma membrane
If you begin with six cells, how many cells would you have after three rounds of division?
a. Twelve cells b. Nine cells c. Eighteen cells d. Twenty-four cells e. Forty-eight cells f. It is impossible to determine.
The movement of substances from lower to higher concentration across a semipermeable membrane that must have a specific protein carrier and cell expenditure of energy is called
A. endocytosis. B. diffusion. C. osmosis. D. active transport. E. facilitated diffusion.