Practice Questions

  1. Home
  2. Free Resources
  3. Practice Questions
  4. 1059
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

  1. Receptor studies indicated that epinephrine was a ligand.

  2. Glycogen breakdown was observed only when epinephrine was administered to intact cells.

  3. Glycogen breakdown was observed when epinephrine and glycogen phosphorylase were combined in a cell-free system.

  4. Epinephrine was known to have different effects on many types of cells.

More Questions
TLS Online TPP Program

#Question id: 2485

#Unit 2. Cellular Organization

Which of the following is NOT a way in which a microtubule switches from growing to shortening?
TLS Online TPP Program

#Question id: 24620

#Unit 2. Cellular Organization

Which of the following has higher no the gene family
TLS Online TPP Program

#Question id: 32345

#Unit 1. Molecules and their Interaction Relevant to Biology

TIGAR is an enzyme which 
A. inhibits glycolysis
B. reduces reactive oxygen species (ROS), 
C. anti-apoptosis
Which of the above statements are correct
TLS Online TPP Program

#Question id: 1192

#Unit 4. Cell Communication and Cell Signaling

In the NF- κB signaling pathway, which of the following molecules is downstream of I- κB kinase?
TLS Online TPP Program

#Question id: 19379

#Unit 12. Applied Biology

The killing action of glyphosate results primarily from ________ the cells of aromatic amino acids