The respiratory pigment you would find in a blue crab or octopus is

A. hemophilin.
B. ferritin.
C. calmodulin.
D. hemoglobin.
E. hemocyanin.


Answer: E

Biology & Microbiology

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Which of the following statements about protein modifications is incorrect?

A. Addition of one or more sugar molecules results in a fully mature protein called a glycoprotein. B. Proteins can be modified by reversible addition or subtraction of a phosphate group. C. Proteins can be modified following the addition of a polyadenylated tail. D. Phosphorylation or dephosphorylation is a rapid way of activating or inhibiting proteins. E. Protein modification most often causes a change in conformation and thus a change in function.

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Puffballs and bracket fungi are most closely related to:

a. molds. b. truffles. c. the common edible mushroom. d. yeast. e. the black bread mold.

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) Some Archaea are chemoorganotrophs and use organic compounds as electron donors for energy metabolism

Indicate whether the statement is true or false.

Biology & Microbiology

How many ventricles does the human brain have?

A. 5 B. 4 C. 2 D. 10

Biology & Microbiology