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A. the displacement of the marble and the change in time over which the displacement occurred .
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A or B I think, hope helps
Answer:
This is an example of E. stereospecificity.
Explanation:
We talk about a stereospecific reaction when sterechemically different reagents react differently. Fumarase is an enzyme that catalyzes the reversible transformation of fumarate into malate by hydration. Human enzymes are specific for L-amino acids and D-carbohydrates, the enzyme fumarase is an example of stereospecificity since it hydrates the fumaric acid (trans form) to maleic acid, but does not act on the corresponding cis form, the maleic acid, that is, fumarase introduces a molecule of water into fumaric acid, but the cis isomer, that is, maleic acid, is not attacked.
Answer:
No they surround the atom
