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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.

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TLS Online TPP Program

#Question id: 744

#Unit 1. Molecules and their Interaction Relevant to Biology

In a DNA molecule, deoxyribonucleotides are joined into a polymer by the covalent linkage of a phosphate group. The covalent link termed as:
TLS Online TPP Program

#Question id: 23030

#Unit 12. Applied Biology

Which type of processes of algae help in the decomposition of bioorganic compounds.
TLS Online TPP Program

#Question id: 306

#Unit 1. Molecules and their Interaction Relevant to Biology

The force responsible for dissolution of ionic compound in water is_________
TLS Online TPP Program

#Question id: 12323

#Unit 10. Ecological Principles

Which of the following is considered by ecologists a measure of the ability of a community either to resist change or to recover to its original state after change?
TLS Online TPP Program

#Question id: 2936

#Unit 2. Cellular Organization

The stable attachment of sister kinetochores to microtubules emanating from opposite spindle poles is called: