Glycogen breakdown and synthesis is coordinately regulated by the second messengers Ca2+ and cAMP, whose levels are regulated by neural and hormonal stimulation, respectively

TLS Online TPP Program

#Id: 9941

#Unit 4. Cell Communication and Cell Signaling

These cells wall off the organism inside a granuloma called a tubercle. The localized concentrations of lysosomal enzymes in these granulomas can cause extensive tissue necrosis.

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#Id: 7107

#Unit 6. System Physiology – Plant

The volatile compound trans-cyclooctene is a strong competitive inhibitor of ethylene binding; trans-cyclooctene is thought to act by competing with ethylene for binding to the receptor. A novel inhibitor, 1-methylcyclopropene (MCP), was recently found that binds almost irreversibly to the ethylene receptor

TLS Online TPP Program

#Id: 4544

#Unit 12. Applied Biology

TLS Online TPP Program

#Id: 9569

#Unit 11. Evolution and Behavior

Dollo’s law:  A biological generalization positing that complex characters, once lost in evolution, are extremely unlikely to reappear and thus the loss of complex characters is virtually always irreversible.

TLS Online TPP Program

#Id: 4625

#Unit 13. Methods in Biology

The interaction between antibody and a particulate antigen results in visible clumping called agglutination. Antibodies that produce such reactions are called agglutinins.