How are the dark reactions that occur in plants dependent on the light reactions? a.
The chemical energy used in the dark reactions is produced in the light reactions.
b.
The light reactions produce the oxygen necessary for the dark reactions to proceed.
c.
Light energy absorbed during the light reactions is used directly in the dark reactions.
d.
During the light reactions, carbon dioxide is converted to sugars, which are used during the dark reactions.

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he uptake of drugs from the intestine is often strongly influenced by diffusion. for example, consider a water-insoluble steroid for treating inflammation that is solubilized in aggregates of detergent molecules, called micelles. these micelles, aggregates of 80 soap molecules, have a molecular weight of 24,000, a diameter of 2.6 nm, and a charge of -27. the positively charge ions (counterions) in this system are na".