Which of the following is characteristic of carbohydrates?
A. They include sugars and starches.
B. They contain C, H, O, with twice as many hydrogen as oxygen atoms.
C. They provide much of the energy that the cell requires.
D. All of the answer choices are correct.
Answer: D
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The bony bars, or rods, that make up spongy bone are called
A. canaliculi. B. osteons. C. endosteum. D. trabeculae.
An infant is born with a genetic defect that greatly reduces his production of brown fat. Which of the following will most likely apply to this infant?
A. The infant will have difficulty regulating his body temperature. B. The infant will have difficulty absorbing nutrients at the small intestine. C. The infant will have difficulty breathing. D. The infant will have very stretchy tendons. E. The infant will have reduced bone mass.
Which of the following examples has a low water content?
A. The biceps brachii muscle B. The vitreous humor of the eye C. Adipose tissue D. The intracellular environment
You have an accident in an organic chemistry lab and end up with a novel compound. This compound, when fed to rats, appears to stimulate dopamine secretion from the substantia nigra. You decide to try to market the drug to humans as a therapy to treat ________.
A. vertigo B. loss of voluntary motor movement following a stroke C. cerebellar disease D. nicotine addiction E. Parkinson's disease