Internal pH changes of a bacterium can cause drastic problems for the cell. Which of the following situations do not occur when the internal pH of a bacteria changes?
A) Lethal denaturing of enzymes
B) Limited production of ATP
C) Altered membrane potential of the cell
D) Endospores enter the vegetative cycle
D) Endospores enter the vegetative cycle
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You are being asked to apply your knowledge about the properties of water.
What will be an ideal response?
Which process is NOT associated with structures that are formed from the extensive infolding of eukaryotic
membranes? a. concentration of nutrients b. cell division c. transport of proteins d. protection of metabolic machinery e. greater surface area for metabolism
What distribution pattern is the most common
in the natural world? a. random b. uniform c. clumped d. stratified or layered e. homogeneous
What actually happens to the blood cells of people with sickle cell anemia that causes the cells to
change their shape ("sickle")? A. Polymerization of hemoglobin molecules into long fibers. B. Destruction of the hemoglobin molecules. C. Loss of hemoglobin through leaky cell membranes. D. Attachment of phosphate groups to the hemoglobin molecules. E. Binding of methyl groups to the heme group of the hemoglobin molecule.