O Fewer sodium ion channels would oper

Q: Positively charged ions flow out of the cell when voltage-gated _____ channels open.   A K+   B…

A: The potential difference between the inner and outer side of the cell membrane is called membrane…

Q: Phenylketonuria (PKU) is a recessive disorder that neither Ginny or Harry have. Unfortunately, their…

A: The absence or mutation in the enzyme phenylalanine hydroxylase humans is not able to metabolism or…

Q: What term means that a tissue can generate action potentials without a stimulus O Autocontractile O…

A: Muscle tissue is a type of tissue that is regularly involved in contraction as well as relaxation so…

Q: When a membrane is at rest, which channels are open? O Voltage-gated calcium channels O…

A: Neurons are the basic unit of the nervous system. The membrane potential of the neuron is…

Q: (II) OI O II O III (IV) On the figure ABOVE, which panel (I, II, III or IV) represents a ligand…

A: Picture a tiny gatekeeper regulating the passage of charged particles such as calcium, potassium,…

Q: Describe how the magnitude and polarity of the sodium and potassium membrane currents vary with the…

A: The activation of a neuron or muscle fiber is mediated through the modulation of its membrane…

Q: Which of the following is true of graded potentials? a. They always reach the same voltage o b. They…

A: Neurons are the basic structures and functional units of the nervous system. The axon or the nerve…

Q: What do neurons use to expel sodium into the extracellular space in order to maintain a strong…

A: Neurons are the basic unit of the brain. They are cell that passes information. Neurons cells are…

Q: Define the term mechanically gated ion channels?

A: Ion channels are formed by multiple individual protein that makes a path for charged ions from…

Q: High Potassium can cause the symptoms seen in hyperkalemia. What about low potassium, known as…

A: Hypokalemia is a condition characterized by decreased levels of potassium ions in blood. The normal…

Q: Which of the following takes place during the depolarization stage of an action potential? OK+…

A: The action potential is defined as the sudden increase in the  excitation of neurons and muscles…

Q: explain the difference between a ligand gated and voltage gated ion channel

A: Cell signaling begins with the interception of a signal or stimulus by a receptor molecule. The…

Q: some pesticides inhibit acetylcholinesterase, the enzymethat breaks down acetylcholine. explain how…

A: Acetylcholine is a neurotransmitter or chemical substance of nerve impulses within the central and…

Q: Compare and contrast calcium, sodium, and potassium ion channels used in neurons.

A: Ions are charged species which are nessesry for neuronal communications . Thier movement helps in…

Q: What value will the membrane potential (Vm) move when an ion, such as sodium, flows along it's…

A: The neurons are nerve impulse generating and conducting cells in our nervous system that are…

Q: An inhibitory postsynaptic potential (IPSP) is associated with hyperpolarization a change in sodium…

A: A temporary hyperpolarization of the postsynaptic membrane generated by negatively charged ions…

Q: Which channel is activated by hot temperature? A. AMPA receptors B. voltage-gated K* channels C.…

A: Membrane channels are a group of biological membrane proteins which permit the passive motility of…

Q: Explain the flow of ions in mechanically-gated ion channels.

A: Mechanically Gated Ion-Channels:- Ionic channels can be of three types: 1. Voltage-gated ion…

Q: What enables action potential to jump from one node of Ranvier to the next? OA. Increased LC OB.…

A: Nodes of Ranvier are points in the axon where myelin sheath is absent and hence conductance is…

Q: Difference in K* concentration across the PM pressure potential Both Difference in K+ concentration…

A: Resting membrane potential is the normal potential of the membrane it is negative inside and…

Q: What is the membrane topology of typical voltage-gated ion channels and how are they sensitive to…

A: Voltage gated Ion channels are a class of transmembrane protein channels that extend from one part…

Q: Our patient cannot remove potassium from their extracellular fluid. This is known as hyperkalemia.…

A: Hyperkalemia is a medical term given to a person having a potassium level in his or her blood that's…

Q: Explain why a K+ channel does not allow Na+ or Ca2+ ions to pass through it – Na is the smallest…

A: K+ channels are membrane proteins that selectively allow the passage of potassium ions (K+) across…

Q: During the absolute refractory period, the majority of vUilage-gated sodium channels closed and…

A: An action potential (AP) is the mode through which a neuron transports electrical signals. It is…