Which is not a function of the placenta in humans?
A. Production of hormones
B. Transfer of blood between mother and embryo
C. Exchange of respiratory gases
D. Transmission of maternal antibodies
E. Exchange of nutrients
Answer: B
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Which is one of the major inhibitory neurotransmittors in the CNS?
A. Glutamate B. Dopamine C. Norepinephrine D. Gamma-aminobutyric acid (GABA) E. Beta-endorphin
You are a neurosurgeon exploring a patient's right primary motor cortex during awake brain surgery. As you stimulate various areas, you are asking the operating room nurses to watch for the resulting muscle contractions on the left side of the patient's body.
Answer the following statement true (T) or false (F)
B and T cells that are no longer needed undergo ____________________ to ensure that a specific immune response is self-limiting
Fill in the blank(s) with correct word
Which of the following would be classified as a lipid?
A. Starch - a polysaccharide B. Alanine - an amino acid C. Cholesterol - a steroid D. Sucrose - a disaccharide E. Catalase - an enzyme