[6.1] If you could add channels to the membrane that make it permeable to peptides and water, what do you think would happen to the peptide and water molecules in the cell? [6.2] If, after adding those channels, you were to wait long enough for the system to equilibrate (i.e., reach a stable state in which the number and type of molecule in each compartment no longer changes much over time), about how many peptide molecules would you expect to find on the left side of the cell and how many on the right? How about the water molecules? Explain your reasoning.

Q: Samuel is suffering from chronic renal failure, characterized by a gradualdecrease in his kidneys’…

A: Renal failure It is characterized by remarkable loss of function of kidney, where onset is sudden or…

Q: What is the free energy change for the transport of calcium ions (Ca++) across a membrane from a…

A: Ions are distributed on either side of the cell membrane. The transport of ions across the membrane…

Q: Identify the polar, inorganic molecule which can pass freely through the plasma membrane. CH3CH2OH…

A: The plasma membrane is composed of a network of phospholipids and proteins that separate the…

Q: Which statements are consistent with the known facts about membrane transport? (a) Active transport…

A: The internal composition of the cell  is maintained because the plasma is maintained because the…

Q: What is receptor-mediated transport? Explain.

A: Different molecules are transported from one cell to another. The movement of molecules across the…

Q: Which of the following is ther eason why the potassium leaves the cell readily at the peak of the…

A: The electrical potential across the neural membrane when the neuron is at rest i.e unstimulated…

Q: How will the steady state of cells be achieved when the effect of extracellular ions on…

A: Steady state is a state which refers to the maintenance of the constant internal concentrations of…

Q: When we discuss the "physiological concentrations of Na* and K+", what actually sets these…

A: Active Transport: Active transport is a type of cellular transport mechanism in which cells move…

Q: What is the result of opening a membrane ion channel?

A: Ion channels are the proteins in the membrane of all living cells that provide a passage to the…

Q: Why are ion channels necessary to transport ions into or out of a

A: The plasma membrane is the external covering of a cell that separates as well protects its internal…

Q: Which of the following statements about ion channels is INCORRECT?     Like carrier proteins, most…

A: Ion channels are pore-forming membrane proteins that allow ions to pas through the channel pore.

Q: Neurons have long thin processes called axons, structuresspecialized for conducting signals…

A: From the formula of Speed and Distance parameter we know- Speed= _Distance traveled by a body(…

Q: In terms of rate of transport of a molecule across a membrane , what is the difference between…

A: Passive transport is the movement of molecules along the concentration gradient, from a higher…

Q: Plasma membrane of neurons has various kinds of channels. Give your viewpoint why nature provided…

A: The neuron is the basic working unit of the brain, a specialized cell designed to transmit…

Q: What is the significance of knowing the reason why the same protein system moves both sodium and…

A: Na+ : Sodium ion K+ : Potassium ion Na+ - K+ ATPase pump moves sodium out of the cell and potassium…

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: Compare and contrast how an ion (e.g., Na+) is transported across the plasma membrane versus how a…

A: In the case of active transport, Na+ is transported via the sodium-potassium pump, which moves Na+…

Q: Discuss the following statement: “The differences between a channel and a transporter are like the…

A: The movement of molecules across the cell or inside the cell need special types of transporter that…

Q: Why is Sodium-Potassium ATPase the only protein to move both sodium and potassium ions into and out…

A: Sodium potassium ATPase is the only protein to move both Na+ and K+ in and out of the cell because…

Q: In the plasma membrane, proteins carry out the following tasnks except ONE:

A: Plasma membrane  Plasma membrane of a cell is a boundary between the cell atmosphere to the outside…

Q: What would happen in each of the following cases where something related to intracellular transport…

A: Peptide has two ends: the end with a free amino group is called the N-terminal amino acid residue.…

Q: Na+1 is a charged ion that cannot easily cross the membrane. Is there any way for this ion to get…

A: the flow of Na+1 ion across a membrane depends on stimulus. whenever a cell membrane gets activated…

Q: Define anterograde axoplasmic transport. Why is this type of axonal transport necessary in most…

A: Introduction :- The transportation of mitochondria, lipids, synaptic vesicles, proteins, and other…

Q: In cotransport (indirect active transport) (a) a uniporter moves a solute across a membrane against…

A: Indirect active transport uses the downhill flow of an ion to pump some other molecule or ion…

Q: This graph shows the electrical charges of the cytosol at one spot along an axon or muscle cell. a)…

A: * The three stages in membrane potential are  Depolarisation  Repolarisation Hyperpolarisation *…

Q: The reason ions such as Na+, K+, and Ca2+ diffuse across plasma membranes more rapidly than would be…

A: Plasma membrane is a cell membrane that is found in all cells, this seperates the interior from…

Q: Describe the difference between integral and peripheralproteins in the plasma membrane

A: The plasma membrane can be defined as the type of outer membrane of the cell which is semi-permeable…

Q: The antifungal drug nystatin kills fungal cells in partthrough the formation of membrane pores that…

A: Nystatin is an antifungal medication which is used to treat Candida infections of the skin including…

Q: BRIEFLY DESCRIBE the difference between open channels and gatéś channels Ih the biological membranes…

A: Open channel and gate channels are types of transmembrane channel proteins that help to transport…

Q: Cells normally exists in a steady state where the intracellular ions are constant.how is this steady…

A: The tissues and organs in the human body are made up of several different types of cells. Even…

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: What factors affect the degree of membrane fluidity?

A: The phospholipid bilayer is composed of two layers of lipids. Each lipid contains a hydrophobic tail…

Q: A cell creates a H+ gradient across a membrane- in other words, a situation is created were the…

A: Answer: PROTON GRADIENT = It is the concentration of H+ ions across the membrane where one side has…

Q: What is the resting membrane potential

A:

Q: How are the ER and Golgi involved in membrane creation? (Think about lipid synthesis and…

A: Introduction: The above answer provides an explanation of how the endoplasmic reticulum (ER) and…

Q: "Transporters saturate at high concentrations of the transported molecule when all their binding…

A: Specialized membrane transport proteins known as transporters and channels are used by cells to…

Q: What are the three types of channel proteins, and whatsignal causes each to open or close?

A: Plasma membrane is a lipid bi layer which is flexible and has a tough barrier which contains…

Q: When a cell dies its plasma membrane becomes “leaky”; i.e., it becomes permeable to ions that were…

A: When a cell dies its plasma membrane becomes “leaky”; i.e., it becomes permeable to ions that were…

Q: What do diffusion, facilitated diffusion, and osmosis have in common? In what way do they differ

A: A plasma membrane is a bilayered phospholipid structure that separates the cell from external…

Osmosis

In simple words, osmosis is the slow, gradual movement of a liquid through a membrane. But there are nuances to this process. For instance, there has to be an imbalance in the distribution of solute in the liquid on either side of the membrane, which has to be semipermeable. The liquid in the region with a lower solute concentration moves to the region with a higher concentration, thereby displacing the solution in the process. The objective is to equalize the concentration of molecules on both sides of the membrane; the displacement of liquid can be viewed as a byproduct of this equalization. Since there is no energy required to carry osmosis, it is considered a passive process.