Practice Questions

  1. Home
  2. Free Resources
  3. Practice Questions
  4. 47783
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?

#SCPH28 | Zoology

  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: 3686

#SCPH06 I Botany

The short strand of ........ primer is required for the replication of DNA:
TLS Online TPP Program

#Question id: 2322

#SCPH28 | Zoology

The gelatinous fluid inside the nucleus is called
TLS Online TPP Program

#Question id: 20097

#SCPH05 I Biotechnology

The work done in ergs for the reversible expansion of one mole of an ideal gas from a volume of 10 litres to 20 litres at is 
TLS Online TPP Program

#Question id: 2269

#SCPH05 I Biotechnology

The rough ER is so named because it has an abundance of _______________ on it.
TLS Online TPP Program

#Question id: 3268

#SCPH06 I Botany

A population of insects is in Hardy-Weinberg equilibrium for a gene with alleles A = orange and a = yellow eyes. There are 91% orange and 9% yellow individuals in the population. If the fitness of the yellow phenotype suddenly drops to zero, what will be the allele frequency in the next generation?