WorksheetsQuiz 1 Review
Total questions: 10
Worksheet time: 8mins
When a neuron is maintaining the at-rest membrane potential, what is the state of the K+ leak channel, voltage-gated Na+/K+ channel, and the voltage-gated K+ channel?
K+ leak: OPEN
Voltage-gated Na+/K+: OPEN
Voltage-gated K+: CLOSED
K+ leak: CLOSED
Voltage-gated Na+/K+: CLOSED
Voltage-gated K+: OPEN
K+ leak: OPEN
Voltage-gated Na+/K+: CLOSED
Voltage-gated K+: OPEN
K+ leak: OPEN
Voltage-gated Na+/K+: CLOSED
Voltage-gated K+: CLOSED
Which person is the following quote attributed to? "If a tree falls in the forest, and no person is around to hear it, does it make a sound?" (paraphrased)
George Berkeley
John Locke
Thomas Hobbes
Gustav Flechner
Nociceptors are to _____ as photoreceptors are to _____.
pain; sight
light; pain
fear; vision
pain; light
Which part of a neuron would a myelin sheath wrap itself around?
Dendrites
Cell body, also called the Soma
Axon
Axon terminals
What does Fechner's Law describe?
As the stimulus intensity increases, the perceived intensity increases in a 1-to-1 fashion
As the stimulus intensity increases, the perceived intensity increases independently of it
As the stimulus intensity increases, the perceived intensity increases less quickly
As the perceived intensity increases, the stimulus intensity increases less quickly
What best describes the process of stimulus perception?
A target stimulus interacts with a sensory neuron; depolarization follows
A sensory neuron interacts with its target stimulus; depolarization is now less likely to occur
A target stimulus interacts with the brain; depolarization follows toward sensory neurons
A concentration gradient changes, allowing a target stimulus to trigger a sensory neuron
Which best describes a concentration gradient?
The concentration of ions "wants" to be more divided; i.e., positive ions grouped here, negative ions grouped there
The concentration of ions "wants" to be spread out and random; i.e., positive and negative ions evenly spaced out with zero order
The concentration of ions "wants" to be organized according to element (refer to the periodic table)
The concentration of ions "wants" to keep moving around no matter what
A study investigated a group of adults who associated letters of the alphabet with a specific color, such as the letter L being yellow. It was found that, as children, these people all used the same fridge magnet set of letters which featured those same specific color-letter associations. Nevertheless, what is this an example of?
Synesthesia
Psychophysics
Synaptic cross-wiring
Synaptic modulation failure
Who is known as "the father of optics"?
Democritus
Rene Descartes
Fan Zhen
Ibn al-Haitham
To who is the following phrase attributed to? "I think, therefore I am (Cognito ergo sum)
Democritus
Rene Descartes
Fan Zhen
Ibn al-Haitham
