Practice Questions

TLS Online TPP Program

#Question id: 11145

Two fundamental concepts about the ion channels of a "resting" neuron are that the channels ________.

#Unit 7. System Physiology – Animal

are always open, but the concentration gradients of ions frequently change
are always closed, but ions move closer to the channels during excitation
are open or closed depending on their type, and are specific as to which ion can traverse them
open in response to stimuli, and then close simultaneously, in unison

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TLS Online TPP Program

#Question id: 16086

#Unit 7. System Physiology – Animal

The preoptic region of the hypothalamus

TLS Online TPP Program

#Question id: 11449

#Unit 7. System Physiology – Animal

Artificial electrical stimulation of a human's menthol-sensitive neurons would likely produce the sensation of ________.

TLS Online TPP Program

#Question id: 10608

#Unit 10. Ecological Principles

Which of the following above point in logistic growth curve show maximum per capita rate of increase?

TLS Online TPP Program

#Question id: 17080

#Unit 12. Applied Biology

Hypoxanthine and thymidine are required for running which pathway

TLS Online TPP Program

#Question id: 10517

#Unit 6. System Physiology – Plant

plant–insect herbivore interactions releases three types of hormone including—