Which of the following is not true of phospholipids?
A. They consist of a phosphate-containing head and two fatty acid tails.
B. They comprise the majority of lipids in the plasma membrane.
C. The fatty acid tails are hydrophilic.
D. The phosphate-containing heads are hydrophilic.
E. The heads of the phospholipids face towards the extracellular fluid.
C. The fatty acid tails are hydrophilic.
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Contraction of the muscle that is attached to the radial tuberosity results in
A) flexion of the forearm. B) extension of the forearm. C) abduction of the forearm. D) adduction of the forearm. E) rotation of the shoulder.
Which property of water is demonstrated when we sweat?
A) high heat capacity B) high heat of vaporization C) polar solvent properties D) reactivity E) cushioning
Which of the following neuroglia produce cerebrospinal fluid?
A) satellite cells B) microglia C) oligodendrocytes D) astrocytes E) ependymal cells
Which connective tissue structure forms a sheath around an entire nerve?
A. Endoneurium B. Perineurium C. Nerve capsule D. Epineurium E. Epimysium