Isovolumetric Ventricular Relaxation

Because all valves are closed again, ventricular volume is constant.

TLS Online TPP Program

#Id: 7434

#Unit 5. Developmental Biology

Chemotaxis of Dictyostelium myxamoebae is a result of spiral waves of cAMP.

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#Id: 9227

#Unit 6. System Physiology – Plant

The specificity factor (W) estimates the preference of rubisco for CO2 versus O2

where Vc and Vo  are the maximum velocities for carboxylation and oxygenation, respectively, and Kc and Ko are the Michaelis–Menten constants for CO2 and O2, respectively

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#Id: 8022

#Unit 1. Molecules and their Interaction Relevant to Biology

TLS Online TPP Program

#Id: 2285

#Unit 3. Fundamental Processes

Polymerase binding sites are called promoters

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#Id: 10302

#Unit 4. Cell Communication and Cell Signaling

Positive Costimulatory Receptors: ICOS

ICOS binds to another member of the growing B7 family, ICOS-ligand (ICOS-L), which is also expressed on a subset of activated APCs.

ICOS plays a key role in maintaining the activity of already differentiated effector and memory T cells.