Rubisco-activase elicits a conformational change of rubisco that reduces its binding affinity for sugar phosphates and activates it.

TLS Online TPP Program

#Id: 5183

#Unit 7. System Physiology – Animal

The vasoconstriction is due to serotonin, histamines & other vasoconstrictors liberated from platelets that adhere to the walls of the damaged vessels.

TLS Online TPP Program

#Id: 9307

#Unit 4. Cell Communication and Cell Signaling

A single activated rhodopsin protein activates 

~13 transducin molecules in the few seconds before the covalent bond between the opsin protein and all-trans-retinal is spontaneously cleaved

TLS Online TPP Program

#Id: 4604

#Unit 13. Methods in Biology

 Propidium iodide-labeled cells in order as
1. Apoptotic cells
2. G1/G0
3. S
4. G2/M 

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: 10488

#Unit 4. Cell Communication and Cell Signaling

Most tumor cells,express MHC class I molecules on their surface, cytotoxic T cells can directly recognize tumor cells expressing neo-antigens.