A(n) ________ is a nonprotein substance that aids in forming the enzyme-substrate complex in metabolic reactions

Fill in the blank(s) with correct word


cofactor

Biology & Microbiology

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A culture in a closed vessel to which no additional medium is added and from which no waste products are removed is called a ________ culture.

A. semicontinuous B. continuous C. batch D. fed-batch

Biology & Microbiology

Which of the following effects can occur because of the high surface tension of water?

A) Lakes cannot freeze solid in winter, despite low temperatures. B) A raft spider can walk across the surface of a small pond. C) Organisms can resist temperature changes, although they give off heat due to chemical reactions. D) Sweat can evaporate from the skin, helping to keep people from overheating. E) Water can flow upward from roots to the leaves in plants.

Biology & Microbiology

Intrinsic properties of immunogens include

A) appropriate physical form. B) molecular size. C) sufficient molecular complexity. D) appropriate physical form, molecular size, and molecular complexity.

Biology & Microbiology

The stomata of leaves are usually open in

a) light if a plant has enough water. b) light if a plant has too little water. c) darkness if a plant has enough water. d) darkness if a plant has too little water.

Biology & Microbiology