is equal to 
#Question id: 1082
#Section 3: Genetics, Cellular and Molecular Biology
Which of the following is a type of signaling in which a cells respond to substrate that they themselves release ?
#Question id: 1085
#Section 3: Genetics, Cellular and Molecular Biology
Which of the following statements about a G protein signaling pathway is true?
#Question id: 1088
#Section 3: Genetics, Cellular and Molecular Biology
One of the major categories of receptors in the plasma membrane functions by forming dimers, adding phosphate groups, and then activating relay proteins. Which type does this?
#Question id: 1090
#Section 3: Genetics, Cellular and Molecular Biology
Binding of a signaling molecule to which type of receptor leads directly to a change in the distribution of ions on opposite sides of the membrane?
#Question id: 1091
#Section 3: Genetics, Cellular and Molecular Biology
Why does testosterone, a lipid-soluble signaling molecule that crosses the membranes of all cells, affect only target cells?
#Question id: 1092
#Section 3: Genetics, Cellular and Molecular Biology
Which of the following statements is true of steroid receptors?