What determines the specificity of a receptor protein?

A. the cytoplasmic domain
B. the transmembrane domain
C. the ligand-binding site
D. the extracellular domain


C

Biology & Microbiology

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Which of the following is true of water?

a. The oxygen end is slightly electropositive. b. Hydrogen bonds hold water molecules together. c. Water covers about one-half of the earth’s surface. d. It participates in hydrophobic interactions with polar molecules. e. Its solvent properties are greatest with nonpolar molecules.

Biology & Microbiology

Which of the following is an example of a neural function?

a. secretion of products b. contraction when stimulated c. protection from invasion by bacteria d. facilitation of diffusion

Biology & Microbiology

Which of the following is exemplified by a pea tendril contacting a string or wire and coiling around it for support?

A) gravitropism B) photoperiod C) thigmotropism D) phototropism

Biology & Microbiology

What is cooperative binding and why is it important for repressor function?

What will be an ideal response?

Biology & Microbiology