Which of the following best describes a metastable state?
A) This state is composed of the difference in activation energy of a catalyzed versus an uncatalyzed reaction.
B) The metastable state is formed by transient complexes with the substrate.
C) The metastable state is created by the prosthetic group of the enzyme.
D) This state changes the position of the equilibrium but not the rate.
E) The metastable state is a state of the substrate in which the reaction can proceed but typically requires a catalyst.
Answer: E
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The term that best describes a symbiotic relationship in which two different microorganisms occupy the same ecologic niche but have absolutely no effect on each other is:
A) commensalism. B) mutualism. C) neutralism. D) parasitism.
In a(n) hydrostatic skeleton, the force of muscle contraction is applied against a rigid, external body covering
Indicate whether the statement is true or false.
What is a plant tissue?
A. A group of cells that work together to perform a specific function B. A group of organs that work together to perform a specific function C. A group of systems work together to perform a specific function D. There is no such thing as a plant tissue; tissues are only found in animals.
The water and minerals absorbed by the roots usually first enter the:
a. pericycle b. vascular tissue c. cortex d. epidermis e. endodermis