Acetylcholine usually induces an excitatory postsynaptic potential when binding to ________ receptors and an inhibitory postsynaptic potential when binding to some ________ receptors.
A. muscarinic; nicotinic
B. muscarinic; NMDA
C. nicotinic; muscarinic
D. NMDA; nicotinic
Answer: C
You might also like to view...
Approximately ________ percent of all lung cancers can be traced to smoking
A) 60 B) 70 C) 90 D) 80
The effect that a neurotransmitter has on the postsynaptic membrane depends on the
A) frequency of neurotransmitter release. B) nature of the neurotransmitter. C) characteristics of the receptors. D) quantity of neurotransmitters released. E) All of the answers are correct.
Answer the following statements true (T) or false (F)
1. The lifting of a 10-lb weight requires the activation of fewer motor units than the lifting of a 5-lb weight. 2. Twitch contractions play an important role in normal muscle activity. 3. Lifting your textbook off the desk is an example of an isotonic muscle contraction. 4. Trying to lift a car (and failing) is an example of an isotonic muscle contraction. 5. In an isometric contraction, no movement occurs but the muscle tension increases.
Many plant pigments can be used as colorimetric tests for changes in ________.
A. pH B. sodium ion (Na+) concentration C. carbohydrate concentration D. temperature E. water purity