Why is it necessary for the cell to degrade some cellular proteins?
A. To eliminate incorrectly folded proteins
B. For tight control of the cell cycle
C. To remove specific enzymes and plasma membrane proteins
D. All of the choices are correct.
Answer: D
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Many factors influence basal metabolic rate (BMR). What is the most critical factor?
A) an individual's body weight B) the way skeletal muscles break down glycogen C) the ratio of surface area to volume (weight) of the body D) the way an individual metabolizes fat
The reinforcing layer of the pericardium is the ________ layer.
A) fibrous B) parietal C) visceral D) sutural E) epicardial
The movement of molecules against their concentration gradient is called ________.
A. facilitated diffusion B. active transport C. diffusion D. endocytosis E. osmosis
The figure illustrates a posterior view of the right knee joint. What does "D" represent?
A. medial (tibial) collateral ligament (MCL) B. posterior cruciate ligament (PCL) C. anterior cruciate ligament (ACL) D. lateral (fibular) collateral ligament (LCL) E. lateral meniscus