Proteins contain both acidic and basic R groups and can, therefore, function as

A) energy storage macromolecules.
B) structural macromolecules.
C) buffers.
D) catalysts.
E) genetic material.


C

Biology & Microbiology

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In a receptor tyrosine kinase, formation of the dimer is initiated by

1.two receptor molecules each binding a signal molecule. 2.binding of phosphates to tyrosines on the cytoplasmic segment of the receptors. 3.activation of the protein kinase sites on the receptor. 4.receptor autophosphorylation. 5.activation of cellular proteins.

Biology & Microbiology

Phosphodiesterase catalyzes the conversion of:

a. IP3 to PIP2. b. GDP to GTP. c. cAMP to AMP. d. calcium to calcium-calmodulin. e. a protein to a phosphorylated protein.

Biology & Microbiology

In a neuron at rest, there is a(n) higher concentration of sodium ions outside the cell than inside

____________________ Indicate whether the statement is true or false.

Biology & Microbiology

The hormones FSH and LH are produced by the ________

Fill in the blank(s) with correct word

Biology & Microbiology