Explain how ion channels alter the electrical properties of a nerve cell membrane
What will be an ideal response?
Answer: Ions are charged particles that are unequally distributed across the cell membrane. When ion channels open, diffusion and electrostatic pressure push sodium ions into the cell or potassium ions out of the cell. These movements result in changes in voltage across the membrane.
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Compare and contrast abstinence-only and comprehensive sexual education programs. Detail outcomes of each
Fill in the blank with correct word.
Which of the following students' statements best describes the spatial framework model proposed by Franklin and Tversky?
a. Susan: "The mental maps we create do not have a built-in bias; we attach the same significance to left-right distinctions as to up-down distinctions." b. Nadia: "The vertical dimension seems to have special significance when we try to create representations of our environment." c. Stanley: "When we hear a story, we automatically assume the perspective of someone looking down on the scene from above, because of the up-down heuristic." d. Igor: "People vary greatly in the way they construct mental maps when they hear a narrative; some rotate the scene to match the perspective of the main character, but most look at the scene as if they were outside the scene, looking in."
Regarding cultural differences in expressed emotion, which is thought to be positively correlated with schizophrenia, research has found that ________ families have the highest percentage of expressed emotion
a. Indian b. Mexican c. British d. Anglo-American
Jennifer confronted her boyfriend about rumors that he was cheating on her with one of her friends. Because he maintained eye contact with her throughout their conversation and seemed sincere in his denial, Jennifer should conclude that a. her boyfriend must be telling the truth, because maintaining eye contact is a good sign of honesty
b. her boyfriend is obviously lying, as maintaining eye contact is a reliable sign of dishonesty. c. her boyfriend may or may not be telling the truth, because eye contact might signify either honesty or dominance. d. she should have paid more attention to his words than to his body language, as body language is easier to fake than verbal behavior.