How is it possible for an enzyme to lower the required energy of activation for a reaction? What will be an ideal response?
Concepts to Consider: Specificity of the active site of the enzyme; modification of the
chemical bonds that link the reactants or that form the reactant; changing the state of
reactants to make them less stable.
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What new information was conclusively demonstrated by the Hershey and Chase experiment pictured on the previous slide?
1.DNA contains phosphorous but not sulfur.
2.Prophage DNA was injected into the bacterial cells while prophage protein remained outside.
3.DNA is the genetic material.
4.Protein contains sulfur but not phosphorous.
5.Prophage protein was injected into the bacterial cells while prophage DNA remained outside.
How many cervical vertebrate are found in an intact skeleton?
a. 5 b. 7 c. 9 d. 12 e. 15
The stimulus that causes the parathyroid glands to secrete parathyroid hormone is ________
Fill in the blank(s) with the appropriate word.
Some animals are facing extinction as a direct result of deliberate efforts to exterminate them because of their
perceived harm to economically useful species. Examples of these include:a. cheetahs and rhinos. b. passenger pigeons and cheetahs. c. prairie dogs and rhinos. d. rhinos and macaws. e. mountain lions and wolves.