Practice Questions

TLS Online TPP Program

#Question id: 11125

In chemical synapses that involve a so-called second messenger, typically a G-protein linked to the postsynaptic receptor is activated when neurotransmitter binds to that receptor. Which of the following represents an activity performed by the activated second messenger?

#Unit 7. System Physiology – Animal

Closure of a membrane channel for sodium or potassium
Activation of cyclic AMP or cyclic GMP
Inactivation of enzymes that initiate biochemical reactions in the postsynaptic neuron
Inactivation of gene transcription in the postsynaptic neuron

More Questions

#Question id: 786

#Unit 1. Molecules and their Interaction Relevant to Biology

A = 27% G = 30% T = 21% C = 22%

If the genome of a newly isolated virus displays the base composition above, the virus most likely consists of ______.

#Question id: 1589

#Unit 4. Cell Communication and Cell Signaling

Which of the following is a characteristic of the early stages of local inflammation?

#Question id: 26571

#Unit 3. Fundamental Processes

Which of the following is required to initiate modifications of histone H3 (deacetylation of K9 and K14, followed by methylation of K9) in human

#Question id: 17200

#Unit 13. Methods in Biology

#Question id: 12764

#Unit 10. Ecological Principles