Practice Questions

TLS Online TPP Program

#Question id: 1254

An inhibitor of phosphodiesterase activity would have which of the following effects?

#Unit 4. Cell Communication and Cell Signaling

block the response of epinephrine
decrease the amount of cAMP in the cytoplasm
block the activation of G proteins in response to epinephrine binding to its receptor
prolong the effect of epinephrine by maintaining elevated cAMP levels in the Cytoplasm

More Questions

TLS Online TPP Program

#Question id: 3766

#Unit 3. Fundamental Processes

Individuals with the disorder xeroderma pigmentosum are hypersensitive to sunlight, and mutations to the DNA in their skin cells are left uncorrected. Why are the mutations not corrected in individuals with this disorder?

TLS Online TPP Program

#Question id: 27385

#Unit 1. Molecules and their Interaction Relevant to Biology

Ranks the following in increasing atomic radius S, Mg, Al

TLS Online TPP Program

#Question id: 27512

#Unit 2. Cellular Organization

If a B-DNA having superhelical density is -0.05 and the value of LK = 200, then what will be the length of DNA

TLS Online TPP Program

#Question id: 24438

#Unit 1. Molecules and their Interaction Relevant to Biology

The molecular structure of the mitochondrial ATP synthase has been determined by