Vomit? Idk exactly what the questions means...have you tried google??
The normal membrane potential inside the axon of nerve cells is –70mV, and since this potential can change in nerve cells it is called the resting potential. When a stimulus is applied a brief reversal of the membrane potential, lasting about a millisecond, occurs. This brief reversal is called the action potential
<span>A stimulus can cause the membrane potential to change a little. The voltage-gated ion channels can detect this change, and when the potential reaches –30mV the sodium channels open for 0.5ms. The causes sodium ions to rush in, making the inside of the cell more positive. This phase is referred to as a depolarisation since the normal voltage polarity (negative inside) is reversed (becomes positive inside). </span>
<span>Repolarisation. At a certain point, the depolarisation of the membrane causes the sodium channels to close. As a result the potassium channels open for 0.5ms, causing potassium ions to rush out, making the inside more negative again. Since this restores the original polarity, it is called repolarisation. As the polarity becomes restored, there is a slight ‘overshoot’ in the movement of potassium ions (called hyperpolarisation). The resting membrane potential is restored by the Na+K+ATPase pump.</span>
That would be the Endoplasmic Reticulum my good friend hope this helped... :D
Answer:
Lipid soluble hormones:
Lipid soluble hormones are hydrophobic in nature and contains hydrophobic signals. Their receptors are present inside the nucleus and some are limited to cytosol as well. The binding of the receptor to its ligand stimulates the synthesis of new protein. The binding of hormone response element binds to the enhancer region of DNA. Example: steroid hormones and thyroid hormones.
Water soluble hormones:
Water soluble hormones are hydrophilic in nature and contains hydrophilic signals. Their receptors are present on the cell membrane . The binding of the receptor to its ligand stimulates the signaling cascades mechanism. The binding of hormone to its receptor results in the activation of protein kinase and secondary messenger.
The answer is vacuole. Cells remove wastes via vacuoles and lysosomes
