The glycolytic pathway oxidizes glucose to two molecules of pyruvate and also produces a net of two molecules of ATP. ATP allosterically inhibits the enzyme, PFK-1, that catalyzes the third step of glycolysis. This is an example of ________.

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#Question id: 2313

#Unit 2. Cellular Organization

In which of the following cells would you expect to find the most mitochondria?

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#Question id: 10616

#Unit 10. Ecological Principles

In a study of tree dispersion in a forest, we divided the forest into 1 sq km grid cells, choose 50 of them at random, and counted the number of trees in each cell. The means to variance ratio of the counts of trees per cell was much less than 1. What does this tell us about the spatial distribution of the trees?

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#Question id: 20269

#Unit 1. Molecules and their Interaction Relevant to Biology

The antidiuretic hormone (ADH) originates primarily in the supraoptic nuclei of the hypothalamus, which of the following statement is FALSE regarding ADH?

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#Question id: 1121

#Unit 4. Cell Communication and Cell Signaling

Which of the following provides the best evidence that cell-signaling pathways evolved early in the history of life?

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#Question id: 20407

#Unit 3. Fundamental Processes

The same sequence of DNA encodes two nonhomologous proteins because it uses more than one reading frame are called as