difference between channels and transporters is that O Only channels allow for the passage of solutes against their electrochemical gradient. OTransporters allow for a greater rate of transport across a membrane than channels do. O Only channels allow for the transport of ions. Transporters must undergo a conformational change upon binding to the solute.

Q: Which of these best describes ion movement through a cell membrane? lons diffuse due to…

A: Movement of molecules or ions from higher concentration to lower concentration is called diffusion…

Q: What type of transport is moving Na+ ions across the basolateral membrane of a distal tubule cell? O…

A: The kidneys are made up of microsccopic structures known as nephrons, which forms the structral and…

Q: Channel gating – Carrier-mediated transport

A: Channel Gating :  It is defined as the  process of encoding of biological signals as a change in…

Q: The phosphate transport system in bacteria imports phosphate into the cell even when the…

A: In the small intestine, phosphate is absorbed via at least two separate mechanisms: paracellular…

Q: In which way are voltage-gated ion channels and active transporters similar?  a   they are…

A: The molecules and ions can travel through the membranes. The membranes include the cell membrane,…

Q: Make some generic comments about channel structure and activity. Why does solute pass extremely fast…

A: Transport channels are integral membrane proteins that facilitate the movement of solutes, such as…

Q: Biological membranes are selectively permeable, allowing certain molecules to cross the membrane,…

A: The cells or the plasma membrane is the outermost layer enclosing the cell. It is responsible for…

Q: How do neutral solutes move across the plasma membrane? Can the polar molecules also move across it…

A:

Q: How do neutral solutes move across the plasma membrane? Can the polarmolecules also move across it…

A: The plasma membrane separates the cell from the external environment and it controls the movement of…

Q: Using the figure above, indicate if each statement is true or false. The ions are moving against…

A: Answer: ELECTROCHEMICAL GRADIENT : It is defined as the difference in the chemical ions across the…

Q: When two chambers are separated by a membrane permeable to water but not solute, if water is free to…

A: Introduction A solution is a homogeneous mixture of two or more substances. It may exist in any…

Q: Which of the following is/are associated with passive (facilitated) transport?     Aquaporin…

A: Passive transport is the movement of  substances through a cell membrane without the requirement of…

Q: Which of the following best describes a hypotonic solution? There is a higher concentration of…

A: Hypotonic means solute concentration is lower than solvent in a solution.  When in a solution…

Q: Contrast the energetic difference between the diffusion of an electrolyte versus a nonelectrolyte…

A: The process of transfer of material from high concentration region to lower concentration under the…

Q: Other non-lipid-soluble molecules or ions, for which membranechannels are not present in the cell,…

A: The cell, which is the basic unit of all living organisms (both in terms of structure and function)…

Q: Sugars are transported in symport with Na+. Na+ upon some time accumulates causing the need to…

A: Sugar transported in symport with Na+ : Glucose

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: If the solute concentration is greater inside the cell than outside the cell, water will move by…

A: When osmosis takes place there is no expenditure of energy in the form of ATP hence it is classified…

Q: This cell is permeable to Urea, but not permeable to sucrose. Intracellular impermeant molecules…

A: Tonicity of a solution is the measure of the relative difference of the solute concentration or…

Q: Which is not required for passive transport across a membrane (select all that apply and explain…

A: In a living cell, the cell membrane acts as a barrier for the cell with the outer atmosphere. It…

Q: An aqueous solution has an osmolarity of 318 mOsm.  If a cell with an intracellular osmolarity of…

A: The osmolarity of a solution is the concentration of solutes within a solution. It is given as the…

Q: The comparison of the simple diffusion, facilitated diffusion and active transport are shown in the…

A: Diffusion is the movement of molecules from a region of higher concentration to a region of lower…

Q: Determine the type of transport. Here are your options: Simple diffusion, facilitated diffusion,…

A: In biology, molecules and lipid particles are transported by some particular protein carrier or…

Q: In contrast to transporters and carriers, channels: O Are selective for the specific solutes (e.g.,…

A: Cell is separated from the external enviroment with the help of cell membrane. This cell membrane is…

Q: What is the difference between primary and secondary active transport? primary active transport is a…

A: Let's analyze primary and secondary active transport in more detail, highlighting their significance…

Q: In primary/direct active transport, does ATP always have to be involved? Definitions seem to say the…

A: Chemical processes that liberate energy in the form of heat are known as exergonic reactions. When…

Q: Which of the following membrane transport mechanisms requires expenditure of metabolic energy?…

A: Cell transport refers to the movement of molecules across the cell membrane. Molecule transport…

Q: Which of the following molecules can bind to and open at least one type of Kir channel?…

A: The cell membrane is a structure which protects the cell and acts as a barrier and transports the…

Q: Glucose transporters are either open to the extracellular side or open to the intracellular side of…

A: Membrane transporters are primarily of 3 types.ChannelsPrimary active transportersSecondary active…

Q: Does secondary active transport occur in the absence of primary active transport? yes or no and why…

A: In cell biology, the term active transport is associated with an energy-dependent transport process…

Q: n all human cells, there is a higher concentration of calcium ions outside of the cell than on the…

A: Various pumps in the body act to maintain cell signaling and communication. These pumps are…

Q: A solution of water and dissolved ions is separated by a selectively permeable membrane that allows…

A: Introduction The potential energy of water per unit volume in comparison to pure water in reference…

Q: Each of the following is a characteristic of active transport mechanisms except sensitivity to…

A: Active transport in cellular biology refers to the passage of molecules or ions through a cell…

Q: When we say that carrier-mediated transport exhibits saturable binding, it means that: Transport is…

A: There are three different types of transports in the living system – simple diffusion, facilitated…

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: Extracellular space Protein channel Cell membrane Carrier proteins Intracellular space

A: The movement of molecules or ions of any substance from a region of their higher concentration to…

Q: Which of the following is true regarding bulk transport?

A: Bulk Transport, in Biology, is a type of transport that facilitates movement of particles in and out…

Q: One of the systems of diabetes of mellitus (sugar diabetes) is extreme thirst. What brings about…

A: Diabetes mellitus is a chronic disease that happens when the blood glucose levels are high. This…

Q: Which of the following would be most likely to move across the membrane without a transport protein?…

A: The objective of the question is to identify which substance among the given options can most likely…

Q: When would a carrier protein be required in order to allow a solute to diffuse across a plasma…

A: Transport is the process of movement of molecules from one region to another region.

Q: Compare and contrast the different transport mechanisms: Electrochemical gradient…

A: Factor Passive Diffusion Facilitated Diffusion Active Transport Electrochemical Gradient Present…

Q: Which of the following is CORRECT concerning the ABC transporter proteins? O They do not undergo…

A: ABC transporters belongs to the ATP binding cassette transporters superfamily.

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.