The dissociation constant Kd for a receptor-ligand complex is

a. a measure of the affinity of the receptor for the ligand.

b. the concentration of the ligand at which half of the receptors contain bound ligand.

c. a measure of the time it takes for a ligand to be converted to a product.

d. equal to koff/kon 

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#Question id: 2055

#XL - S Microbiology

The proteins of the membrane attack complex (MAC) insert into the cell membranes of invading microorganisms and punch holes that result in lysis of the pathogen. The complement components of the MAC are,

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#Question id: 2056

#XL - S Microbiology

A mother has an Rh- and the father an Rh+ blood type. The first baby born to the parents was Rh+ . However, the parents elect for the mother not to receive Rhogam. future babies of this couple at risk for

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#Question id: 2059

#XL - S Microbiology

For a protein to be an integral membrane protein, it would have to be:

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#Question id: 2060

#XL - S Microbiology

An animal cell lacking carbohydrates on the external surface of its plasma membrane would likely be impaired in which function?

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#Question id: 2061

#XL - S Microbiology

Which of the following types of molecules are hydrophilic and therefore excluded from the hydrophobic portion of the phospholipid bilayer?

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#Question id: 2062

#XL - S Microbiology

Which of the following types of molecules lack hydrophilic domains?