Which type of membrane protein will bind to a signal molecule?
a. passive transporter
b. enzyme
c. adhesion
d. receptor
d
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The synthesis of ATP in the chloroplast by ATP synthase depends on different concentrations of hydrogen ions in the lumen of the thylakoid and in the stroma
Compare these two compartments of the chloroplast in terms of both actual hydrogen ion concentration and pH scale values. What will be an ideal response?
A Ramachandran plot shows the sterically limited rotational domains:
A. between proline and noncylic amino acids. B. between polar and nonpolar R groups. C. of an R group with respect to the neighboring R groups. D. of an R group with respect to the polypeptide backbone. E. that two polypeptide chains can occupy.
The primary structure in a protein
A. refers to the helical folding of a protein. B. refers to two or more polypeptides linked to one another. C. refers to the sequence of amino acids. D. refers to the initial folding of a protein.
What feature is common to all the alveolates?
a. autotrophy b. lung-like sacs used for respiration c. bioluminescence d. complex life cycle with two hosts e. membrane-bound sacs beneath the plasma membrane