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
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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.
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.
) Some Archaea are chemoorganotrophs and use organic compounds as electron donors for energy metabolism
Indicate whether the statement is true or false.
How many ventricles does the human brain have?
A. 5 B. 4 C. 2 D. 10