If sodium permeability (Pna) increases compared to normal, what is the effect on the membrane potential? (determine: change in charge on the inside of the membrane and polarity)

Q: If an ion has the same concentration on both sides of the membrane, then Eion will be: O Positive O…

A: The equilibrium potential for an ion is the electrical potential at which the electrical gradient…

Q: In this scenario, potassium is in the lumen of the nephron (blue) and will need to cross epithelia…

A: Nephrons are the functional units of the kidneys. A nephron consists of tubules and associated…

Q: Select all the correct answers for the question that follows. The resting membrane potential of an…

A: Neuron or nerve cells are cells that act as messengers, they are able to undergo  electrical…

Q: Explain how potassium is secreted in the DCT? T[K*] 3Na+ 3Na* 3Na* Aldo Kir4.1-5.1 2K+ 2K+ 2K+ ;…

A: The mineral potassium is the most plentiful in the body. It is localized to the intracellular area.…

Q: What relationship exists between the difference in the concentration of water on each side of the…

A: scientists believe that the actual force which drive the osmosis is osmotic pressure.As we know…

Q: 3. What is the difference between osmosis and diffusion? Checkpoint Tonicity For each of the…

A: Passive diffusion: This type of diffusion occurs down a concentration gradient, where the solute…

Q: Explain the steps involved in the transport of sodium ions and potassium ions across a plasma…

A: Introduction :- sodium potassium ATPase is a protein pump found in neurons' cell membranes (and…

Q: ny does this ion contribute the most to the resting membrane potential (Vmrest) Because this ion…

A: The difference in the number of positively charged potassium ions (K+) inside and outside the cell…

Q: 2. A red cell of normal osmolarity (300 mosm/l) is placed in the following solutions. Describe each…

A: The net movement of water across a semipermeable membrane from a low solute concentration area to a…

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: Left Compartment                                        Right Compartment 7 grams of Z per liter…

A: Osmolarity is the number of solute particles per litre of solution. When there is difference in…

Q: 3. Draw and label a diagram that demonstrates the difference between tonicity and osmolarity. Be…

A: The process of controlling bodily fluids and their compositions is known as osmoregulation. It keeps…

Q: Identify the differences between type A and type B intercalated cells;  under which condition is…

A: Nephrons are the functional units of the kidneys. A nephron consists of tubules and associated…

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: Na+K+ pump in maintaining the membrane potential of a cell.

A: The membrane is the potential represents that the balanced equilibrium potentials of the ions to…

Q: 7. The diffusion constant for the membrane protein fibronectin is approximately 0.7 x 10-12 cm²/sec,…

A: For fibronectin:Dfibronectin = 0.7 x 10-12 cm2/sect = 50 x10-3 secDistance =…

Q: explain how does sodium potassium pump works?

A: Primary active transport is coupled directly with a metabolic source of energy such as ATP…

Q: . For most neurons, the extracellular concentration of chloride ions (Cl-) is 108 mM, while the…

A: Neurons are the structural and functional units of the nervous system. These cells are specialized…

Q: A 20 year old female presents to your emergency service with severe head trauma from a fall. An MRI……

A: Brain is the central organ of the body, which is responsible for co-ordinating thoughts, emotions,…

Q: 6. During repolarization, which channels are which channels are becoming inactive, and which are…

A: As we are entitled to answer one question at a time, we are answering the first one (Ques no.6).…

Q: 6. What is the value of AG for the inward movement of glucose through a facilitated diffusion…

A: Given: Extracellular concentration of glucose = 5mM Intracellular concentration of glucose = 1mM…

Q: What would the membrane potential be if the cell membrane suddenly became 10X more permeable to just…

A: Membrane potential is defined as the difference in electric charge across a cell membrane, making…

Q: The figure below shows the movement of a particular ion across a cellular membrane. + + + + + + + +…

A: In a living cell, the concentration gradient of Na+ tends to drive it into the cell, and the…

Q: What provides the driving force for Cl- entry through the basolateral membrane into cell?

A: Saltwater balance maintenance is an important aspect of sustaining life. In a variety of organ…

Q: 5. Which of the following is NOT true about channel and carrier proteins? a) Carriers never form a…

A: Please Note: As per the honor code we are allowed to author only one question unless mentioned.…

Q: 13) Draw a graph representing the changes in membrane potential across the axonal membrane before,…

A: The electric signals that flow down the dendrites to form a nerve impulse or an action potential are…

Q: Which statement about active ion transporters is true? O They move certain ions against the…

A: An essential part of cellular physiology, active ion transporters are responsible for maintaining…

Q: Muscle. Contractions which move the body depend heavily on diffusion. Why do we have difficulty…

A: Muscle contractions which are responsible for the movement in body mainly depends upon the diffusion…

Q: . Describe the differences between channel-mediated and carrier-mediated transport.

A: The transportation of molecules specially hydrophobic and large molecules across the plasma membrane…

Q: The osmolarity of plasma is maintained at about 300 mOsM.  What would the osmolarity inside a red…

A: To maintain at equilibrium which means neither the fluid or electrolytes will

Q: Fill in the diagram, your illustration should demonstrate for each phase of the AP: 1. The relative…

A: Action potential (AP) occurs when membrane potential on a specific location of a cell rapidly rises…

Q: A neuron with an intracellular Cl concentration of 20 mM is placed in a solution that contains 125…

A: FACILITATED DIFFUSION - it is the process of spontaneous passive transport of molecules or ions…