Thinking about bacterial cell membranes, which of the following statements is True. Select one: a. None of the Above b. NAG and NAM subunits are used as the building block for some bilayer membranes. c. Phospholipids are composed of a polar head and hydrophobic tails. d. Most bacteria will use only unsaturated fatty acids to create their cell membranes. e. Saturated fatty acids put a bend or kink in the cell memrane, making it more fluid.

Q: Red blood cells look intact and normal in the 0.9% solution. In the 1.5% solution cells are present…

A: When RBCs are placed in 0.9% saline solution, there is no net movement of water in any direction.…

Q: In this plasma membrane, the function of the green part of the structure indicated by Letter C is to…

A: Cell is basically an elemental unit of the body which is involved in various cellular activities.…

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A: Cholestrol in cell membrane: It restrains the flow of phospholipids, making the membrane less…

Q: Which of the following best describes an integral membrane protein? A.A protein that has an…

A:

Q: Electrical gradients ( potential; charges) exists on cell membranes because in part when the cell is…

A: Membrane potential is the difference in the electric potential (gradient of ion concentrations)…

Q: A transmembrane protein in the plasma membrane is glycosylated attwo sites in the polypeptide…

A: The correct option is (b).

Q: Choose the statements that describe how the helix orients in the tertiary structure of an integral…

A: Plasma membrane is made up of mainly phospholipid and protein. Membrane protein can be classified as…

Q: Which of the following statements about binding between cytosolic proteins and phospholipids is…

A: The correct answer is option C. By the mechanism of phosphorylation, the phospholipids binding with…

Q: Dr. Bunsen Honeydew is interested in studying the lipid makeup of the cell membranes from a mammal…

A: The cell membrane also referred to as the plasma membrane comprises a  semipermeable lipid bilayer.…

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A: The sodium-potassium pump is found in several cell membranes, which moves sodium and potassium ions…

Q: G. Cell Structure and Function You are an oxygen molecule that has just entered a body cell. In the…

A: A cell is the basic structural, functional and biological unit of all living organisms. It is the…

Q: Select one: a. In osmosis, water diffuses across a selectively permeable membrane from the…

A: Osmosis is the diffusion of solvent (mostly water) from region of high water potential to region of…

Q: Membrane lipid molecules exchange places with their lipid neighbors every 10–7 second. A lipid…

A: Lipids are known to constitute about half of the total mass of the majority of animal cell…

Q: A researcher is isolating proteins from a cell via different techniques. They find that when the…

A: Establishing protein expression is important in the study of cells, because proteins often carry out…

Q: A nickel containing transmembrane protein ____

A: There are a few important points : Membrane proteins are responsible for most of the dynamic…

Q: In the cytosol, most protein folding _________

A: In the cytosol, most protein folding is spontaneous, meaning that most proteins can refold following…

Q: Decide whether each molecule in the table below could be found embedded in the outer surface of a…

A: Cell membranes are mostly composed of phospholipids. An important characteristic of phospholipids is…

Q: is involved in the synthesis .of phospholipids Smooth Endoplasmic Reticulum O Endoplasmic Reticulum…

A: Introduction  Cell is the basic unit of life. All organisms be it single cellular or multicellular,…

Q: Choose all that aplly that are TRUE for the lipid bilayer: Negative mark is given to incorrect…

A: A lipid bilayer is described as a very thin layer that is made up of two different layers of…

Q: 3. Some proteins are membrane bound and have segments (called transmembrane domains) that pass…

A: There are different proteins associated with lipid bilayer and they perform different functions.…

Q: 16. Lare specialized sphingolipid and cholesterol enriched microdomains within cell membrane. a. G…

A: The plasma membrane is present in all living cells present in all living organisms that protects the…

Q: A cell was growing happily at 37 C, but the temperature was then changed to 40°C. All of these can…

A: Explanation: As the temperature of the cells increases, the membrane increases its mobility.…

Q: 10. As described by the fluid mosaic model, biological membranes contain not only phospholipids but…

A: Cell membrane is a phospholipid bilayer with some integrated proteins. Proteins that span through…

Q: Which type of amino acid would be found in the channel of a protein that spans the membrane (up…

A: Proteins are the macromolecules which is a polypeptide chain of large number of amino acids units.

Q: 15 Which of the following amino acids would most likely be present in the boxed section, assume…

A: A protein is made of a polypeptide chain of amino acids and every amino acid is of different…

Q: Proteins have many functions in the cell membrane. Which function is NOT related to a protein?…

A: The proteins are one of the major component of phospholipid bilayer that form the biological…

Q: 1. Flip-Flop is considered the LEAST likely to happen of the four membrane movements because it is…

A: Introduction :  phospholipis are the most abundant lipid found in membrane.   Lipids show different…

Q: Transmembrane portrudes on both sides. Integral protein is in the width of the bilayer and may…

A: An integral membrane protein is a type of membrane protein that remains permanently attached to the…

Q: Which of the following does not apply to lipid asymmetry? a.It arises in the endoplasmic reticulum.…

A: Introduction The difference in lipid composition and/or physical properties between the two lipid…

Q: What is true of the proteins illustrated in the diagram below? Select all statements that are true.…

A:

Q: movement of sucrose molecules across the plasma membrane takes place through ect one: a.…

A: The plasma membrane consists of a Phospholipid Bilayer with the hydrophilic tails facing outside and…

Q: About this figure of a transmembarne protein; one of the following is false? Thickness of nembrane o…

A: The proteins are made up of polypeptide chains of amino acids that can form several structural…

Q: Membranes are effective barriers preventing the crossing of both polar and nonpolar molecules from…

A: The structure and function of  a cell is dependent on membranes. These membranes separate the…

Q: The shortest α helix segment in a protein that will span a membrane bilayer has about _____ amino…

A: The plasma membrane is a bilayer of lipids, in which proteins are floating like icebergs in a sea.…

Q: The presence of cholesterol regulates the in animal cells.

A: Dietary cholesterol levels have a strong influence on the quantity of cholesterol produced in the…

Q: Where is the KV1.1 (a membrane protein) polypeptide synthesized in the cell?  (word bank: cytoplasm,…

A: Potassium voltage-gated channel subfamily A member 1 also known as Kv1.1 is a shaker-related…

Q: Which of the following is a function of membrane proteins? A. to process lipids and proteins for…

A: Introduction - The plasma membrane, also known as the cell membrane, is a membrane found in all…

Q: integral memebrane protein that crosses membrane multiple time b. lipid-linked membrane proteins…

A: Hydropathic index identifies what kind of residues are present in a protein whether it is made up of…