What will be an ideal response?
The promotion phase of carcinogenesis refers to
A) enhanced levels or exposures to a carcinogen
B) metabolic oxidation by a P450 cytochrome
C) normal cell progression to a precancerous cell
D) precancerous cell progression to a cancerous cell
E) the amount of DNA damage in a cell
D) precancerous cell progression to a cancerous cell
Biology & Microbiology
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A solution of starch at room temperature does not readily decompose to form a solution of simple sugars because _____
A) the starch solution has less free energy than the sugar solution B) the hydrolysis of starch to sugar is endergonic C) the activation energy barrier for this reaction cannot easily be surmounted at room temperature D) starch cannot be hydrolyzed in the presence of so much water E) starch hydrolysis is nonspontaneous
Biology & Microbiology
Excess glucose is stored in large branched molecules of:
A. glycogen in animals. B. starch in bacteria. C. starch in animals. D. glycogen in plants. E. glycogen and starch in both animals and plants.
Biology & Microbiology
Which binomial name is correctly written?
a. Escherichia coli b. Escherichia coli c. Escherichia coli d. Escherichia Coli
Biology & Microbiology
What are homologous structures, and how do they provide evidence for evolution?
Biology & Microbiology