MCAT Biology Question 49: Answer and Explanation
Home > MCAT Test > MCAT biology practice tests
Test Information
- Use your browser's back button to return to your test results.
- Do more MCAT biology practice tests.
Question: 49
4. Which of the following correctly describes a difference between nerves and tracts?
- A. Nerves are seen in the central nervous system; tracts are seen in the peripheral nervous system.
- B. Nerves have cell bodies in nuclei; tracts have cell bodies in ganglia.
- C. Nerves may carry more than one type of information; tracts can only carry one type of information.
- D. Nerves contain only one neuron; tracts contain many neurons.
Correct Answer: C
Explanation:
Nerves are collections of neurons in the peripheral nervous system and may contain multiple types of information (sensory or motor); they contain cell bodies in ganglia. Tracts are collections of neurons in the central nervous system and contain only one type of information; they contain cell bodies in nuclei.