How does GLUT4 increase the rate of glucose absorption in cells?
a. GLUT4 hydrolyzes glucose into three acetate ions which readily diffuse into the cell.
b. GLUT4 causes channel proteins in the plasma membrane to expand and transport glucose.
c. GLUT4 encapsulates a glucose molecule, becoming a single-use transport protein.
d. GLUT4 causes vesicles to fuse with the plasma membrane, transporting glucose into the cell.
d. GLUT4 causes vesicles to fuse with the plasma membrane, transporting glucose into the cell.
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A. microbes. B. endospores. C. viruses. D. prions. E. microbes, endospores, AND viruses.
The idea that geologic processes have formed Earth's surface by repeating the same actions over and over is known as
____. a. the theory of catastrophism b. plate tectonics c. continental drift d. the theory of uniformity e. the theory of relativity
In which coastal zone would you find a large number of crabs and mangrove trees along with moist soil?
A. benthic B. littoral C. intertidal D. neritic E. pelagic
Many of these non-membranous organelles of eukaryotic cells are necessary to form the cytoskeleton of a cell.
A. cilia B. microfilaments C. ER D. chromatin