The activation of receptor tyrosine kinases is characterized by _____
A) dimerization and phosphorylation
B) dimerization and IP3 binding
C) a phosphorylation cascade
D) GTP hydrolysis
E) channel protein shape change
Answer: A
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Which one of the following individuals is given credit for developing the first compound microscope?
A) Anton van Leeuwenhoek B) Hans Jansen C) Louis Pasteur D) Robert Hooke
In an open circulatory system, blood is _____
A) always inside of vessels and is under higher pressure than in closed circulatory systems B) not always confined to blood vessels and is under higher pressure than in closed circulatory systems C) always inside of vessels and is under lower pressure than in closed circulatory systems D) not always confined to blood vessels and is under lower pressure than in closed circulatory systems
The glycolysis pathway ________ .
a. requires oxygen b. converts acetyl CoA into pantothenic acid c. results in ketogenic compounds d. results in the formation of pyruvate e. is the breakdown of pyruvate to acetyl CoA
Which of the following types of fat are the least healthy?
A) trans fat B) monounsaturated fat C) saturated fat D) polyunsaturated fat