The major components of the cell membrane are
A. lipids and carbohydrates.
B. carbohydrates and polysaccharides.
C. proteins and carbohydrates.
D. lipids and proteins.
Answer: D
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Why is blockage of a coronary artery such a serious threat to cardiac muscle?
A. Cardiocytes have weak sarcolemmas that easily rupture. B. Cardiocytes have abundant mitochondria and rely on a constant supply of oxygen. C. Cardiocytes rely on a constant supply of calcium. D. The myosin of cardiocytes is unique and requires abundant nutrients and oxygen. E. Cardiocytes are fast-twitch fibers.
When actinomyosin of platelets contracts and squeezes the serum out of a clot, the process is called clot _________
Fill in the blank with correct word.
Which would be a normal hematocrit value for a healthy adult female?
A) 66 B) 40 C) 50 D) 25
Sympathetic preganglionic axons
A. can synapse in terminal ganglia. B. must synapse in parasympathetic ganglia. C. can synapse with cells in the adrenal cortex. D. can synapse in the dorsal root ganglion. E. can synapse in either chain or collateral ganglia.