The ________ molecules which form the bilayer region of the cell membrane exhibit hydrophilic properties on the outer surface and hydrophobic properties on the inner surface.
Fill in the blank(s) with the appropriate word(s).
phospholipid
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A bruise appears as a greenish spot in the skin because
A) hemoglobin has leaked from the blood into the injury and hemoglobin has a green color. B) the heme group in the hemoglobin has broken down into biliverdin. C) bilirubin from iron recycling has built-up in the bruise. D) red blood cells lyse releasing biliverdin from inside. E) dead white blood cells accumulate at the site of injury.
In a molecule of hydrogen, a pair of electrons is shared equally. Such a bond is called a(n)
A) ionic bond. B) polar covalent bond. C) nonpolar covalent bond. D) oxygen covalent bond. E) hydrogen bond.
Which paralytic condition is caused by a viral infection that destroys motor neurons in the brainstem and ventral horns of the spinal cord?
A. Amyotrophic lateral sclerosis (ALS) c C. Multiple sclerosis D. Rabies E. Meningitis
When a negative energy balance exists,
a. the body must make use of stored energy reserves. b. the caloric content of the food ingested is less than the energy output. c. the caloric content of the food ingested exceeds the energy lost due to heat or work. d. energy has been destroyed by catabolic processes within the body. e. both (a) and (b) above.