The oxygen-dependent reactions required for cellular respiration were originally thought to occur in a linear pathway. By using a competitive inhibitor for one enzyme in the pathway, investigators discovered that these reactions occur in a cycle
What compound served as the inhibitor?
(a) malonate
(b) malate
(c) fumarate
(d) succinate
(a)
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The morphology of a cell influences its
A) motility. B) metabolism. C) surface-to-volume ratio. D) motility and surface-to-volume ratio
The inner membrane system of chloroplasts consists of flattened sacs called ________ that form stacks called ________.
Fill in the blank(s) with the appropriate word(s).
In order to provide more strength and resilience, the human vertebral column normally has how many curvatures?
A. one B. two C. three D. four
The biological species concept declares an organism to be a separate species if it has undergone
evolution long enough for the emergence of statistically unique traits. _____________ Indicate whether the statement is true or false.