The terms "run" and "tumble" are generally associated with
A) cell wall fluidity.
B) taxic movements of the cell in response to attractants or repellents.
C) clustering properties of certain rod-shaped bacteria.
D) cell membrane synthesis.
B
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Discuss energy in reference to Case 1, The First Cell: Life's Origins. The conversion of H2S to sulfuric acid is used as a source of energy by some extremophiles
As described in Case 1, some extremophiles can use hydrogen sulfide gas (H2S) as a source of energy. What can you conclude about the G of the reaction and the relative potential energies of the reactant and product? What will be an ideal response?
The most common of the sexually transmitted viral diseases agents is
A. human papillomavirus. B. herpes virus. C. human immunodeficiency virus. D. leptospirosis.
In non-cyclic photophosphorylation, where do electrons go after being released from photosystem II?
1.through an electron transport chain and into photosystem I 2.into photosystem I, through an electron transport chain, and then into NADPH 3.back into water 4.back into photosystem II
Energy is observed in two basic forms: potential and kinetic. Which of the following is an example of potential energy?
A. waves crashing against the shoreline B. a bowling ball placed on the top shelf of a closet C. a hot cup of coffee D. the mercury rising within a thermometer