Question

Please answer all the questions true or false and explain your answers

7. An electrical signal is converted into a chemical signal at the synapse by stress gated chloride channel.

8. The resting membrane potential of animal cells is always 0 Mv

9.A voltage -gated Na⁺  channels adopts two alternative conformations.

10. Tight junction permit selective ion transport.

11.Calcium channel in a neuron is open during hyperpolarization step.

12. A protein that relies on protein-protein interactions to stabilize its membrane association is classified as a peripheral membrane protein because it can be dissociated with high concentration of salts.

Answer 1

7. An electrical signal is converted to chemical signal at the synapse by a voltage gated sodium channel. So, the given statement is false.

8. The resting membrane potential of a nerve cell is -70 mV and for skeletal muscle cell it is -90 mV. So, the given statement is false.

9. A voltage gated calcium channel adopts to two alternative conformations and voltage gates sodium channels to three alternative conformations . So, the given statement is false.

10. Tight junction doesn't permit selective ion transport. So, the given statement is false.

11. During hyperpolarization in neuron, potassium channels open. So, the given statement is false.

12. A protein that relies on protein protein interactions to stabilize it's membrane association is called as peripheral membrane protein and so the statement is true.