Action potentials are produced by the
A) opening of voltage-activated sodium channels.
B) closing of ligand-activated chloride channels.
C) closing of ligand-activated potassium channels.
D) opening of ligand-activated potassium channels.
E) closing of voltage-activated calcium channels.
Answer: A
You might also like to view...
Studies indicate that to have more than one mental disorder any point in time
a. men are more likely than women b. women are more likely than men c. adolescents are more likely than young adults d. the elderly are more likely than young adults
Zola, who is currently pregnant, recently lost her mother and father unexpectedly. According to research on exposure to stress during pregnancy, Zola is at risk of spontaneous miscarriage.
Answer the following statement true (T) or false (F)
Max is scanning the racks of hundreds of videos in his local video store, trying to choose which movie he should rent for the weekend. In this situation, Max will need to rely on:
a. his problem-solving skills b. materialistic identification principles c. means-ends analysis d. his decision-making skills
Answer the following statements true (T) or false (F)
1 Invertebrates have a more hierarchically structured central nervous system than do vertebrates 2 A mouse has a larger cerebral cortex than does a snake 3 Evidence suggests that the human brain stopped evolving approximately 200,000 years ago when the first Homo sapiens appeared 4 Genes are made up of chromosomes 5 Genes are sections of strands of DNA that code for specific traits