When certain molecules are pumped across biological membranes against a concentration gradient via active transport, ATP is used
In the cells of our bodies, for example, sugars are actively transported and metabolized within the membrane-enclosed mitochondria. Prokaryotes, in contrast, lack mitochondria but are nonetheless able to metabolize the same sugars.
Based on the details provided in this scenario, which of the following statements is expected to be TRUE?
A) Overall, prokaryotes will gain more ATP per sugar molecule metabolized than will eukaryotes.
B) Sugar metabolism in prokaryotes is exergonic, whereas in eukaryotes it is endergonic.
C) The sugar-digesting enzymes in eukaryotic cells, such as sucrase, are not the same sugar-digesting enzymes found in prokaryotic cells.
D) Prokaryotes and eukaryotes should have the same metabolic efficiency when digesting the same sugars, assuming their enzymes are the same.
A
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A. It will be less efficient at exchanging materials with its environment. B. It will be able to store more nutrients. C. It will be able to secrete mucilage and aggregate as part of a biofilm. D. It will no longer be able to undergo binary fission for reproduction. E. It will become a spirochaete.
The size and shape of habitat patches are determined more by the activities of animals than by the interaction of geology, topography, and climate
Indicate whether the statement is true or false
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A. chicken, beef and cheese B. potatoes, beans and fish C. pork, fish and corn D. butter, beef and chicken E. fish, cheese and fruits
In 2012, a new kind of fungal meningitis (infection of the nervous system) was discovered. Disease occurred among patients who had received steroid injections in the spine. Discuss whether these were healthcare-associated infections (HAIs): defend your
answer. Discuss the route of transmission and what measures public health agencies could take to reduce disease. What will be an ideal response?