Practice Questions

TLS Online TPP Program

#Question id: 1084

Which observation suggested to Sutherland the involvement of a second messenger in epinephrine's effect on liver cells?

#Unit 4. Cell Communication and Cell Signaling

Receptor studies indicated that epinephrine was a ligand.
Glycogen breakdown was observed only when epinephrine was administered to intact cells.
Glycogen breakdown was observed when epinephrine and glycogen phosphorylase were combined in a cell-free system.
Epinephrine was known to have different effects on many types of cells.

More Questions

#Question id: 2077

#Unit 2. Cellular Organization

In receptor-mediated endocytosis, receptor molecules initially project to the outside of the cell. Where do they end up after endocytosis?

#Question id: 16785

#Unit 13. Methods in Biology

#Question id: 308

#Unit 1. Molecules and their Interaction Relevant to Biology

The vapor pressure of o-nitrophenol at any given temperature is predicted to be______

#Question id: 6968

#Unit 5. Developmental Biology

In Xenopus, the mesoderm moves in through the blastopore by rolling around the dorsal lip in a process called:

#Question id: 4369

#Unit 3. Fundamental Processes

Which of the following is an incorrect association between transcription factors and their characteristics?