Sodium-potassium pumps maintain a(n) electrochemical gradient
__________________ Indicate whether the statement is true or false.
True
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Cilia (select all correct choices):
A. are specialized organelles found on some epithelial cells. B. are used by epithelial cells to move substances along cell surfaces. C. are used by sperm cells for motion. D. None of these choices are correct.
How can replication be increased in the Artemia bioassay to improve reliability of results?
What will be an ideal response?
Which of the following options lists the stages in cellular respiration in the correct order?
A) oxidative Phosphorylation, the citric acid cycle, and glycolosis B) The citric acid cycle, oxidative Phosphorylation, and glycolosis C) glycolosis, oxidative Phosphorylation, the citric acid cycle D) glycolosis, the citric acid cycle, oxidative Phosphorylation E) oxidative Phosphorylation, glycolosis, The citric acid cycle
In order to activate the cell mediated arm of the
adaptive immune response, which of the following must occur?
a. A naïve helper T cell must bind to an antigen-presenting dendritic cell. b. A naïve B cell must be activated in order to activate the effector helper T cell. c. A free bacterium must pass through a lymph node where it will directly activate the effector helper T cell. d. A damaged or infected body cell must pass through a lymph node in order to activate T cells. e. None of these will activate the cell mediate arm.