Which of the following mechanisms best describes the manner in which lysozyme lowers the energy required for its substrate to reach its transition-state conformation?
(a) by binding two molecules and orienting them in a way that favors a reaction between them
(b) by altering the shape of the substrate to mimic the conformation of the transition state
(c) by speeding up the rate at which water molecules collide with the substrate
(d) by binding irreversibly to the substrate so that it cannot dissociate
(c)
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Nuclear membranes re-forms during
a. prophase. b. telophase. c. interphase. d. anaphase. e. metaphase
Which part of the lac operon produces a regulatory protein that is trans-acting?
What will be an ideal response?
Fertilization is completed when the sperm nucleus fuses with the ________
Fill in the blank(s) with correct word
When sugars are actively transported into a cell, what happens to the turgor pressure inside that cell?
A. It increases, because sugar concentration directly affects turgor pressure B. It increases, because water enters and affects turgor pressure C. It decreases, because water exits and affects turgor pressure D. It decreases, because sugar concentration directly affects turgor pressure