TABLE II.
Parameters Used in the Linear Model
| Tadpoles | Froglets | ||||
|---|---|---|---|---|---|
| Parameters | Units | Control | BAPTA | Control | BAPTA |
| A | s−2 | 0.12 | 0.12 | 0.08 | 0.08 |
| KR | s−1 | 1.25 | 1.25 | 1.25 | 1.25 |
| KE | s−1 | 0.4 | 0.4 | 0.4 | 0.4 |
| β0 | s−1 | 1.8 | 1.8 | 1.1 | 1.1 |
| Hf0 | s−2 | – | – | 5.0 | 5.0 |
| βf0 | s−1 | – | – | 0.5 | 0.5 |
| ΔBCa | – | – | – | 1 | 10 |
A, amplification factor; KR, rate constant of inactivation of rhodopsin; KE, rate constant of inactivation of PDE; β0, phosphodiesterase activity in the dark; Hf0, gain of feedback stage; βf0, rate constant of feedback stage; ΔBCa, fractional change in buffering capacity.