True or False: if an energy source such as sunlight is available, the citric acid cycle can run in reverse in some organisms
A. true
B. false
A
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Which of the following is not true of van der Waals interactions?
A. The interaction depends on the distance between atoms. B. Attractive and repulsive forces are balanced at the van der Waals radii for each atom. C. Repulsive interactions arise when atoms are separated by a distance equal to the sum of their combined van der Waals radii. D. Atoms that are farther apart than the sum of their combined van der Waals radii do not experience van der Waals forces. E. All of these statements are true.
An isotonic solution has a solute concentration ____ the solute concentration inside the cell
a. equal to b. greater than c. less than d. that depends on e. that alters
Active transport ________.
utilizes energy cannot transport molecules against a concentration gradient cannot be saturated requires cofactors
When an atom or molecule gains one or more electrons, it is said to be:
A. oxidized. B. reduced. C. energized. D. polarized.