Parts of the enzyme molecule that interact with a substrate are called:a
cofactors.
b. active sites.
c. induced-fit models.
d. orientation sites.
e. reaction sites.
B
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Affinity maturation is one of the factors responsible for a stronger secondary immune response
Indicate whether the statement is true or false.
Where does the Calvin cycle occur?
A. chloroplast inner membrane B. thylakoid membrane C. thylakoid lumen D. chloroplast stroma E. chloroplast outer membrane
HDL cholesterol is considered "good" cholesterol. What role does HDL play in preventing coronary heart disease?
a. HDL cholesterol inhibits LDL cholesterol synthesis b. HDL cholesterol prevents transport of LDL cholesterol in blood c. HDL cholesterol activates LDL cholesterol breakdown d. HDL cholesterol prevents free radical formation in plaques e. HDL cholesterol removes excess cholesterol from plaques
Which of the following types of plant hormones triggers plant responses to environmental stresses
such as cold snaps, high salinity, and drought?
a. abscisic acid b. cytokinins c. oligosaccharins d. jasmonates e. ethylene