#Question id: 19125
#Unit 12. Applied Biology
#Question id: 1225
#Unit 4. Cell Communication and Cell Signaling
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
#Question id: 24647
#Unit 10. Ecological Principles
Many animals obtain their amino acids from the food they eat, though plants contain only small number of amino acids, which types of animals has the capacity to synthesizes missing amino acids?
#Question id: 10769
#Unit 8. Inheritance Biology
#Question id: 18857
#Unit 13. Methods in Biology