Define concentration gradient.

Q: Summarize the relationship between the concentration between the intracellular and extracellular…

A: Broadly there are three types of transport: 1. Active transport: it is further divided into primary…

Q: Define the term electrochemical gradient?

A: The plasma membrane is a semi-permeable membrane surrounding the cell which regulates the entry of…

Q: Describe facilitated diffusion.

A: Introduction In this question we will discuss about the facilitated diffusion.

Q: Draw cell membrane showing Na- H exchange and give name of exchange?

A: The sodium-hydrogen exchanger isoform-1 [NHE1] is a ubiquitously expressed plasma membrane protein…

Q: Describe Diffusion of Ions Through Ion Channels Ions?

A: CELL MEMBRANE- It is also known as Plasma membrane or Cytoplasmic membrane. It is situated beneath…

Q: What is receptor-mediated transport? Explain.

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

Q: what is an electro gradient

A: The plasma membrane is the outer covering of the cell that separates the internal cellular…

Q: 00 A В Which cell represents an isotonic solution?

A: an isotonic solution is one which the solute concentartion is same as that of its surrounding media…

Q: Describe the activity of the sodium-potassium pump and indicate its importance to the cell.

A: For every 2 potassium ions carried in, it serves to carry sodium and potassium ions in a proportion…

Q: Define the term active transport?

A: Active transport is that the energy-requiring method of pumping molecules and ions across membranes…

Q: What determines the magnitude of flux across a membrane in a mediated-transport system?

A: The construction of a semipermeable plasma membrane is such that it does not allow free movements of…

Q: What determine the direction in which net diffusion of a nonpolar molecule will occur?

A: Diffusion is the random movement of molecules and has a net direction towards region of lower…

Q: At equilibrium during osmosis, is equal on both sides of the membrane.

A: Osmosis is process of   transport of a solvent through a semipermeable membrane that separates two…

Q: Define protein clathrin.

A: A cell is defined as the smallest unit of a living organism which is the basic structural,…

Q: severe ketosis situations produce acidosis, explain

A: In case of physiologic ketosis, ketones in the blood are higher above baseline levels, however, the…

Q: Contrast diffusion and bulk flow?

A: Diffusion and bilk flow: For a molecule to from one place to another, diffusion and bulk flow are…

Q: Explain the mechanism by which cells sample extracellular fluid.

A: Extracellular fluid refers to bodily fluid that is not contained within cells. It can be present in…

Q: Describe the types of osmosis

A: OSMOSIS: it is the movement of solvent from a region of lower solute concentration (or higher…

Q: Which process uses proteins to move molecules against a concentration gradient?

A:

Q: What would happen to chemiosmosis if the pH in the inner membrane space was decreased (lower)?

A: Chemiosmosis is the movement of ions across a semipermeable membrane, down their electrochemical…

Q: extracellular conditions are unfavorable, th

A:

Q: Define osmosis.

A: Step 1 In a flowering plant, a complex traffic material is moving in different directions with each…

Q: What is the relevance of measuring absorbance against protein concentration?

A: Introduction :  Proteins are nitrogenous organic substances made up of one or more elongated chains…

Q: protien gradient formed

A: In biological terms, a gradient is established because of the difference in the concentration of the…

Q: What process can move a solute against its concentration gradient?

A: In biology, the collection of mechanisms which regulate the movement of solutes like ions and small…

Q: Describe active transport across the plasma membrane marking note of concentration gradient Nd…

A: Cellular transport is a very important phenomena that occurs inside the cell because there are a lot…

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: Calculate the effective quantity (g) of sodium chloride related to tonicity in 100 mL of an…

A: Solution is defined as the special type of homogeneousmixture composed of two or more substances .…

Q: Define activator

A: Prokaryotic transcriptional regulation is accomplished by gene regulatory proteins which bind with…

Q: Define active transport

A: All the cells have a cell membrane.

Q: Explain why Na+ is low inside cells despite a large concentration gradient inward

A: Cells can communicate via their own chemical signaling system. Different chemicals, such as hormones…

Q: What is an example of active transport in the body?

A: As we know cell membrane is semipermeable and it allows movement of various molecules, gases,…

Q: Solution A is hyperosmotic to solution B. If solution A is separatedfrom solution B by a selectively…

A: Osmosis is the process by which there will be a net movement of a solvent through a selectively…

Q: What type of transport is shown?

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

Q: What is the combination of an electrical gradient and a concentration gradient called?

A: An electrical gradient is created due to the active transport of ions across the cell membrane. This…

Q: Define diffusion. How does this differ from osmosis?

A: Students are typically asked to compare and contrast osmosis and diffusion. The answer to the…

Q: Define the following terms:a. ligandb. motor proteinc. GTPd. macromolecular crowdinge. excluded…

A: The molecule/atom which binds reversibly to a protein is called a ligand. The class of proteins…

Q: Channel protein vs carrier protein?

A: Channel protein is an arrangement of amino acids placed embedded in cell membrane. This provides a…

Q: What provides the energy for the H+ to be pumped against the concentration  gradient.?

A: ATP (adenosine triphosphate) provides energy for pumping H+ ions against their concentration…

Q: What is the Direction of net flux Through Facilitated Diffusion?

A: Passive diffusion is a mode of transport that does not use energy.

Q: Define peripheral protein

A: The structural composition of cell membranes comprises several different kinds of proteins,…

Q: If a concentration gradient exists, solutes will move from high concentration to concentration?

A: Concentration gradient refers to difference in concentration of a substance in two regions.

Q: What is the difference in cell potential between sodium and glucose environment?

A: A membrane made up of a lipid bilayer with proteins incorporated in it surrounds all animal cells.…

Q: Ions diffuse across cell membranes by what pathway?

A: Introduction Cell is bounded by the membrane which only allows selective molecules to pass through…

Q: How is the rate of diffusion affected by an increasedconcentration gradient? By increased…

A: Diffusion can be classified into two types namely simple diffusion and facilitated diffusion. In the…

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.