Name the process of movement of molecules from higher to lower concentration.

Q: Describe the orientation of the phospholipid molecules in a membrane.

A: Answer- The plasma membrane is composed of two layers of phospholipids. They have two leaflets of…

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: List the following compounds in order of increasing lipid bilayer permeability: RNA, Ca2+, glucose,…

A: Permeability refers to the benefit that molecules cross biological membranes. as a result of the…

Q: Illustrate the transport of ions across a cell membrane ?

A: The cell membrane contains proteins that transport ions and water-soluble molecules into or out of…

Q: Controlled exchange of materials occurs between compartments and across cellular membranes. Explain?

A: Cell membrane or plasma membrane is composed of lipids and proteins. It is a dynamic structure and…

Q: Define the term MIcro molecules?

A: Micromolecule is a  molecule that is relatively smaller (than a macromolecule), or of low molecular…

Q: Provide examples of how changes in temperature affect chemicalreactions, protein functions, and…

A: Every species need a certain temperature to survive, animals require specific temperature  range for…

Q: Describe the general functions of the main classes oforganic molecules in cells.

A: A biomolecule or natural particle is an inexactly utilized term for atoms present in life forms that…

Q: Explain why cells are alive but macromolecules are not.

A: The cell can be defined as the building blocks of life and they are the smallest ones. The science…

Q: Name the process by which molecules distribute themselves evenly within the space they occupy.

A: Cell transport is defined as the process of the movement of substances across the cell membrane.…

Q: Explain the importance of lipid content in the strucutre of biological membranes

A: Cell is an elemental unit of the body in  which various metabolic activity / process are performed .…

Q: What kind of molecules can use simple diffusion?

A: Simple diffusion is the process by which molecules are moved along the concentration gradient from a…

Q: Differentiate between isotonic and hypotonic solutions?

A: Any solution has 2 components – solute and solvent. Solute is substance which gets dissolved and…

Q: Identify the classes of organic molecules found in plasma membranes.

A: The fluid mosaic model of the plasma membrane was proposed by Singer and Nicolson in 1974 is the…

Q: Explain the meaning of the terms polar and nonpolar; hydrophilic and hydrophobic.

A: HCl is a polar molecule and they dissolve only in polar solvents, like water. While nonpolar…

Q: What is meant by active transport across a cell membrane?

A: Cell membrane or plasma membrane is a thin, delicate, elastic and living boundary. The cell membrane…

Q: Predict how changes in lipid composition affectmembrane fluidity

A: The cell membranes are semifluid structures that allow two-dimensional (2D) movement of molecules.…

Q: List three molecules or types of molecules that can cross a lipid bilayer through simple diffusion.…

A: Plasma membrane : It is also known as cell membrane , found in all cells that separates the interior…

Q: List the four classes of organic molecules that are foundin cells.

A: Cells are the smallest functional and structural unit of all organisms. All cells have a cell…

Q: How do most water molecules move through hydrophobic cell membranes?

A: Cell or the cytoplasmic membrane is considered as the outermost layer of the cell, which acts as a…

Q: How do isotonic, hypertonic, and hypotonic solutions differ?

A: The tonicity of a solution is its ability to cause the movement of water molecules into the cell by…

Q: Define the Diffusion of molecules ?

A: Diffusion of molecules or molecular diffusion is a physical process . It is a random thermal…

Q: What percent concentration of KCl would be isotonic to body cells? _______%

A: An isotonic solution is having two solutions with the same osmatic pressure across a semipermeable…

Q: Describe the types of noncovalent interaction that promote the stability and functional properties…

A: Four types of noncovalent bonds in biological systems are ionic bonds, hydrogen bonds, weak van der…

Q: Describe at least two ways in which atoms and cells differ

A: INTRODUCTION Atom is a non living thing that makes matter, cell is a living thing that makes organ.…

Q: Identify if A B C D and E are a hypotonic, hypertonic, or isotonic solution using the information…

A: Osmosis: The process of movement of solvents from high water concentration to the lower water…

Q: Tight junctions prevent the diffusion of fluids and solutes between______________

A: Tight junctions are also known as zona occludens or occluding junctions. These are junctions made of…

Q: Describe the organization of amphipathic molecules in water.

A: A molecule that possesses both a polar and a non-polar group is called an amphipathic molecule. They…

Q: define nucleolus

A: A cell is the fundamental unit of life. All living organisms are made up of one or many cells. The…

Q: Draw the strcuture of Phospholipids

A: Phospholipids also referred to as phosphatides, are a kind of lipid. Phospholipids are found in…

Q: What part of this molecule will bind to free cations in cellular cytoplasm? Please indicate the…

A: Within the cell different macromolecules at present that includes DNA, RNA, proteins,…

Q: What is the definition of solute concentration?  A. The total amount of solute inside a cell B.…

A: A solvent is the component of a solution that is present in the greatest amount. It is the substance…

Q: Define the following terms: a. chloride shift b. lipid raft c. caveolae d. simple diffusion e.…

A: “Since you have posted a question with multiple sub-parts, we will solve first three subparts for…

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: Explain how membrane lipids self-assemble into bimolecular sheets.

A: The basic structure of the plasma membrane is the lipid bilayer. This bilayer is composed of two…

Q: "drives" the diffusion of water across a cell membrane?

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

Q: Define the following terms: a. solvation sphere b. amphipathic c. micelle d. hydrophobic effect e.…

A: The solvent interface of a biomolecule that constitutes the solute is known as the solvation sphere.…

Q: Explain the difference between hydrophilic and hydrophobic molecules, and between acidic and basic…

A: Different bonding patterns inside atoms and molecules make them exhibit different behaviors in…

Q: Describe the types of noncovalent interaction that promote the stability and the functional…

A: The membrane components; polar lipids, proteins, cholesterol, and inorganic ions, associate via the…

Q: Explain protein folding mechanism.

A: Proteins are classified into two types Globular proteins and fibular proteins. globular proteins…

Q: Name the solution in which the relative concentration of water molecules and the solute on either…

A: difficult to note cell shape and arrangement. There is a semi-permeable membrane which decides the…

Q: For the following modes of transport for membranes, tell whether the flow is with or against…

A: Introduction: The term cell membrane is used synonymously with the plasma membrane. It is 7 to 10 nm…

Q: Distinguish between the following pairs: a proteins and lipids in cell membranes b active transport…

A: From the above question we have to Distinguish between the following pairs: a proteins and lipids…

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.