The cellular uptake of large particulate substances and macromolecules is called endocytosis.
Answer the following statement true (T) or false (F)
True
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Receptor sites on the outer surface of the plasma membrane are
a. ATP. b. carbohydrates. c. cyclic AMP. d. DNA. e. proteins.
Which statement about arteries and veins is CORRECT?
A. For an artery and vein of the same diameter, the vein would have a thicker wall. B. Blood pressure is lower in arteries than in veins. C. Both arteries and veins are under pressure. D. Veins contain valves and arteries do not. E. When empty, an artery is more likely to be collapsed (flattened) than a vein.
DNA or RNA? ribose
What will be an ideal response?
In assessing a mechanical prototype to demonstrate lung function, it is suggested that the final version of synthetic lung material will need to be easier to inflate and easier to deflate in order to be cost effective. Which will need to be true?
A. More compliant and less elastic B. More compliant and more elastic C. Less compliant and more elastic D. Less compliant and less elastic