Malpighian tubules are used for excretion
____________________ Indicate whether the statement is true or false.
True
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A new drug is developed that targets and binds to the lipid A portion of LPS from Gram-negative bacterial cells. This drug shows a high degree of activity and binding in a test tube setting against purified lipid A. Based on this information,
A. we should fast track this drug and get it out to physicians immediately to help prevent toxic/septic shock in humans. B. we should do some animal testing with whole Gram-negative cells and the drug before we jump to any conclusions. C. we should next proceed by moving to testing in a test tube using whole Gram-negative cells to see if it binds with the same strength. D. we should abandon the drug entirely. Binding to lipid A won't kill the bacteria, so the drug is useless to develop further. It wouldn't help humans who have septic shock at all.
How is your body able to work against the effects of entropy?
A) Regular exercise B) Eating a balanced diet and proper nourishment C) Regular work D) Sunbathing
Anabolic reactions are those that ________ .
a. break down proteins into amino acids b. release energy c. increase absorption of nutrients in the small intestine d. regulates the passage of molecules in and out of a cell e. convert small molecules to larger ones
In a DNA double helix, _____________________
(a) the two DNA strands are identical. (b) purines pair with purines. (c) thymine pairs with cytosine. (d) the two DNA strands run antiparallel.