Which of the following are forms of carrier-mediated transport?
a. Facilitated diffusion only
b. Carrier-mediated active transport only
c. Osmosis only
d. Both facilitated diffusion and carrier-mediated active transport
e. Facilitated diffusion, carrier-mediated active transport, and osmosis
D
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Which of the following statements concerning tumor necrosis factors (TNF) is false?
a. TNF can be secreted by macrophages. b. TNF may stimulate the inflammatory response. c. The release of large amounts of TNF brings down a high fever. d. TNF kills cancer cells. e. TNF can be secreted by lymphocytes.
Which of the following is the best line of evidence for glycolysis being an ancient pathway?
a. Glycolysis occurs in mitochondria. b. Glycolysis is universal. c. Glycolysis is highly regulated. d. Glycolysis is complicated.
The American Institute for Cancer Research promotes "The New American Plate," which includes plant-based foods covering __________________ of the plate and meat, fish, poultry, or low-fat dairy covering __________________ of the plate.
Fill in the blank(s) with the appropriate word(s).
You are a part of the first scientific team to land on Mars. What steps would you take to determine whether there is any life there? If you found something, how would you know whether it is a living thing?
What will be an ideal response?