Enzyme activity is affected by pH because __________.
Fill in the blank(s) with the appropriate word(s).
Answer: high or low pH may disrupt hydrogen bonding or ionic interactions and thus change the shape of the active site
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Abscisic acid is an important signal, transported from roots to the stem and leaves during times of water stress, that prevents
A. additional auxin production. B. ethylene buildup in the stems. C. leaf drop. D. phototropism. E. stomatal opening.
During ____, the three germ layers rearrange to produce tissues and organs
a. organogenesis b. fertilization c. parturition d. gastrulation e. cleavage
Why do you have to use an oven to transform batter into a cake?
What will be an ideal response?
Which of the following is NOT a feature associated with filtration?
A) nitrocellulose or plastic membrane filters B) sterilization of heat-sensitive materials C) varying thicknesses of membrane filters used D) use of HEPA filters to filter air E) ability of some filters to trap viruses and proteins