Explain the mode of action of surfactants on the cytoplasmic membrane. Use ALL of the following words in your explanation: surfactant, phospholipids, and cell.

Q: escribe two ways that covalent compounds are used in the human body. How does the polarity of a…

A: Biomolecules are organic molecules that function precisely in living systems. Biomolecules are…

Q: Analyze the relationship of the following factors with diffusion rate. * FASTER DIFFUSION RATE…

A: Diffusion is movement of molecules due to difference in concentration gradient in a region. This…

Q: Would cyanide poisoning increase the H+ concentration or decrease the H+ concentration in the…

A: In large doses, cyanide quickly binds with iron in cytochrome a3, preventing electron transport in…

Q: Define the following terms:a. supersecondary structureb. protomerc. phosphoproteind. denaturatione.…

A: Proteins are the polymers of amino acids in which each amino acid is joined by a peptide bond. Based…

Q: (a) Use Table 12.5 to calculate the osmotic pressure of the hemodi- alysis solution at 25 °C. (b) If…

A: To calculate osmotic pressure; O.P. = CRT where C = concentration in mol/litre R = gas constant =…

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: If cyanide poisoning occurs, would you expect the pH of the intermembrane space to increase or…

A: Electron Transport Chain (ETC) is happening in the inner mitochondrial membrane (IMM) where the…

Q: Oxygen gas is transported across the cell membrane by? osmosis, active transport, simple diffusion,…

A: Osmosis is the transport of solvent molecules (mostly water) from a region of lower solute…

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

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

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: Define the following terms:a. saponificationb. wax esterc. waxd. phospholipide. polar head group

A: Lipids are molecules that contain hydrocarbons and make up the building blocks of the structure and…

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: Give 1 example (Specific process involvement within living organisms) for Exocytosis

A: Exocytosis is the way toward moving materials from inside a cell to the outside of the cell. This…

Q: Which molecule is responsible for the blue color in blue essential oils? Choose one answer. a.…

A: Lipids are one of the major macromolecules that are necessary for the growth and development of…

Q: What is Fick’s first law of diffusion applied to biological membranes?

A: The plasma membrane is semi-permeable membrane that surrounds a cell providing shape and structure…

Q: What happens to cells in an isotonic, hypertonic and hypotonic solution? Why?

A: Tonicity refers to the measure of a cell's ability to gain or lose water in response to the solute…

Q: Define the following terms: a. phospholipids b. soap c. surface active agent d. phosphoglyceride e.…

A: The terms phospholipids, soap, surface active agent, phosphoglyceride and sphingomyelin are related…

Q: concentration gradient diffusion  osmosis  facilitated diffusion active transport

A:

Q: Choose the best option about how cholesterol affects cell membrane fluidity? Select one: O a.…

A: Cholesterol is a lipid present in the cell membrane of animal cells. It is involved in the…

Q: discuss the structure of detergents and explain how they help purify membrane proteins from the…

A: Detergents are amphiphatic molecules containing polar or charged head and a non-polar or hydrophobic…

Q: If we swim in Dead Sea water, are our cell plasmolyzed ? Why?

A: Dead sea water is salty having more salt concentration and less solvent (water) concentration in the…

Q: An amino acid mixture consisting of phenylalanine, glycine, and glutamic acid is to be separated by…

A: HPLC is often referred to as high-pressure liquid chromatography. It exploits the same basic…

Q: Diffusion and Osmosis are examples of O 1. Active Transport O 2. passive transport O 3. solubility O…

A: Introduction  The movement of materials across cell membranes is referred to as cell transport. Cell…

Q: In a micelle or bilayer, the surrounding water is in contact with the more _____ portion of the…

A: Micelles are lipid molecules that contain both hydrophilic and lipophilic properties. Micelles…

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: 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: 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: Which conditions shown in Figure 8-4 might cause a cell to burst? А. В. H20 H20 Water molecule…

A: HYPOTONIC SOLUTION: If the medium surrounds the cell has a higher water concentration than the…

Q: Use both diagrams AND full sentences to describe/explain what will happen in each of the following…

A: An isotonic solution has the same solute concentration as the fluid inside a cell. A hypotonic…

Q: Use the Stokes-Einstein equation to estimate the diffusion coefficient in m²/s and in µm²/s for the…

A: The Stoke-Einstein equation is used for calculating the diffusion coefficient of spherical…

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: Why can humans not survive by drinking seawater? Explain using osmosis.

A: Introduction: Osmosis is diffusion of water or solvent through a semi-permeable membrane from the…

Q: Define the following terms: a. hydrocarbon tails b. polar head c. dialyzing membrane d. van’t Hoff…

A: Define the following terms:a. hydrocarbon tailsb. polar headc. dialyzing membrane

Q: otein Which of following statements is true? A. Polar molecules cannot simply diffuse across the…

A: Polar molecules are the charged molecules.  There is no charge on the non polar molecules. Cell…

Q: Which is the better strategy to determine the effect of media density on diffusion rates?

A: Question-  which is the better strategy to determine the effect of media density ont rate of…

Q: Which of the following classes of compounds are biological surfactants and one of the main…

A: Biological Surfactants, also known as Biosurfactants are the surfactants that are derived from…

Q: Explain solutes, solvents, and hydration.

A: Solutes : Solutes are the substances which dissolve in other substances, named as solvents. The…

Q: red blood cell and an Elodea cell when placed in a hypotonic solution.

A: Solution that have lower osmotic pressure than other  compared solution is called hypotonic…

Q: What would happen if the cell membrane was covalentlylinked rather than held together by relatively…

A: Introduction: The cell membrane is made of lipid molecules arranged in a bilayer with their…

Q: Describe the reason why the red blood cells placed in one solution swell and burst and also why the…

A: Red blood cells  The cells which are red in colour and carry oxygen gas to the every cell of our…

Q: define : a. isotonic slution b. hypertonic solution c. hypotonic solution

A: A solution is said to be a homogeneous mixture of two or more components in any one phase(solid,…

Q: Which of the following distinguishes osmosis from simple diffusion?  a) a concentration gradient…

A: A cell membrane is made of various biological molecules such as phospholipids, cholesterol, and…

Q: Differentiate the following in terms of description and properties.  a. Diffusion b. Active…

A: Transportation across the membrane is a crucial process in cell biology. Some transport processes…

Q: Define the following terms:a. biotransformation reactionb. sarcoplasmic reticulumc. Golgi…

A: a. The process by which one chemical substance changes into another as a result of chemical…

Q: How do we use the principle of osmosis in cooking?  As when we salt vegetables before cooking them…

A: Osmosis is the diffusion of water across a semi-permeable membrane from an area of high…

Q: compare and contrast between hypertonic, isotonic and hypotonic solutions.

A: Osmosis: Osmosis is the process by which there occurs movement of solute from high concentration…

Q: Indicate with an arrow which direction water would move through. What is the physical condition of…

A: Isotonic solution Isotonic solution is a type of solution in which the concentration inside the cell…

Q: How can we find the resistance of a cell-membrane?

A: Introduction: Cells are the underlying, practical, and organic units of every single living being. A…

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.