Bacteria are typically grown at a temperature of 37oC. What happens to the membrane lipid composition if the temperature is increased to 42oC?

Q: If the concentration of the bacterial nutrient, maltose, is higher outside the cell than inside the…

A: Passive transport  A type of transport of molecules across the cell membrane where no expenditure of…

Q: What is the difference between a food vacuole and a vesicle?

A: A live organism's basic structural and functional unit is the cell. A cell, according to cell…

Q: Describe the method used to isolate vesicles for lipid analysis. How is C-Laurdan used to analyze…

A: Introduction: The below answer provides an explanation of two techniques used to study lipid…

Q: Explain what happens to a a plamolysed cell when placed in a hypotonic solution

A: Plant cells experience a condition known as plasmolysis when they are exposed to a hypertonic…

Q: Aside from cholesterol, what other chemical components of the cell membrane contributes to its…

A: Membrane chemistry can be rain on the basis of fluid mosaic model. According to this model a…

Q: How do cells maintain the fluidity of their membranes? If a bacterium was growing at 20°C, how would…

A: The biological membranes of cell are selectively permeable. Fatty acids form an integral part of the…

Q: e tubes containing sucrose, how would you classify the situation in terms of solvent movement ? (…

A: Tubes containing sucrose When the tubes present in higher concentration of the solute (high sucrose)…

Q: What will happen if cell inoculum density is more than 300

A: Introduction The population of microbes or cells injected into the fermentation medium, or any other…

Q: )Suppose you were culturing a population of bacteria at 37 degrees C and then reduce the temperature…

A: The maintenance of the fluidity of the plasma membrane is important for cell survival. The membrane…

Q: tein do you have? Peripheral (extrinsic) A protein covalently anchored to membrane fatty acids…

A: There are different types of proteins attached to the cell membrane along with fatty acids.…

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: How does the presence of high concentrations of salt orsugars in food prevent growth of…

A: When a cell is placed in a hypertonic solution, there will be a net flow of water out of the cell,…

Q: You have a protein that is easily extracted from a cell membrane preparation, without any associated…

A: Cell membrane or plasma membrane is made up of proteins and phospholipids. Various  proteins are…

Q: The size of a cell seen under a microscope is 3mm Using a total magnification of 40x. What is the…

A: The formula to calculate the actual size of the cell is given below.   Actual size of the cell =…

Q: The phospholipid bilayer is very solid. True False

A: Introduction  Phospholipids are a class of lipids that make up the basic structure of cell…

Q: Explain the fluid mosaic model of the cell membranes. Which component of cell membrane is…

A: All the cell organelles are demarcated by the cell membrane, also termed the plasma membrane. It…

Q: What is an isotonic solution? Explain what you would observe if a cell was exposed to a hypotonic…

A: Osmosis refers to the movement of solvent from a less concentrated solution to a more concentrated…

Q: With regard to the tube with no sucrose, how would you classify the situation in terms of a solvent…

A: The process of solvent movement from a higher concentration to a lower concentration across the…

Q: Assume a cell has an osmolarity of 10 mM. What will happen to that cell (swell, shrink, or stay the…

A: The cell is the basic unit of life. The cell has a mass of cytoplasm that is enclosed by a cell…

Q: Why do we use sucrose solution when we observe plant cells? What explanation

A: When a plant cell is placed in a sucrose solution i.e in hypertonic solution water will move from…

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: Prokaryotic cells are very small and appear to be restricted in terms of their size, but eukaryotic…

A: Introduction:- Single-celled organisms belonging to the Bacteria and Archaea domains are known as…

Q: A lab made cell consisting of an aqueous solution enclosed in a semipermeable membrane is immersed…

A: Given : Only water,  glucose abd fructose can cross membrane.

Q: A plant cell that displays a plasmolysis shape must be in which of the following solutions?…

A: Osmosis is the process by which molecules of a solvent tend to pass through a semipermeable membrane…

Q: The approximate thickness of the phospholipid bilayer is 10A 1 micro M 50A 150A 1nM

A: There are four classes of biological macromolecules - nucleic acid, proteins, lipids and…

Q: b. Two different liposomes have radii of 50.00 nm and 70.00 nm respectively. In a biopolymer…

A: Introduction: Liposomes are simple microscopic vesicles in which aqueous volume is enclosed entirely…

Q: Explain why spontaneous phospholipid translocation (themovement of a molecule from one leaflet of a…

A: A phospholipid is a type of lipid molecule that is the main component of cell membrane. Each…

Q: What is the relationship of a solvent concentration to the penetration coefficient of cell membrane?

A: A solvent is anything that dissolves solute molecules in it. Water is also known as the universal…

Q: Why can nitrogen cross the membrane via diffusion through the bilayer and while protons require a…

A: Passive diffusion refers to the process by which small nonpolar, uncharged molecules dissolve into…

Q: Gram-positive eubacterial cells (like Clostridium perfringens) contain which components? a cell…

A: Bacteria are unicellular, microorganisms, which can survive in diverse environments. They can be…

Q: What is the size in µm of a cell that is 135mm wide in my photo? The scale bar in the photo is…

A: A microscope is a scientific instrument that allows us to see objects that are too small to be seen…

Q: Which cell represents a hypotonic solution?

A: Answer: OSMOSIS : It is the movement of water from the higher concentration to the lower…

Q: H,0 H,0 H,0 H,0 H20 H,0 H20 Plasma membrane H,0 Which figure depicts a plant cell placed in a…

A: INTRODUCTION When a cell placed in a hypertonic solution the water will move from the cell to the…

Q: C.

A: A. Hypertonic B. Isotonic C. Hypotonic

Q: Name a substance that is unique to acid fast cell walls.

A: Acid fast bacteria are those which are highly resistant to acid alcohol decolorising .

Q: How does paramecium avoid bursting because of osmosis?

A: Osmosis is defined as a special type of diffusion in which the water molecules diffuse from the…

Q: The following table depicts the rate of transport of a molecule into a cell as the external…

A: In cell science, membrane transport alludes to the assortment of mechanisms that manage the passage…

Microbial Physiology

Microbial physiology is the branch of microbiology that is associated with studying the physiology of fungi, bacteria, and viruses. It is an important field of science concerning functional genomics and metabolic engineering.

Chemotaxis

The organism’s movement in a particular direction as a response to certain chemicals that are available in the environment is defined as chemotaxis. In brief, it can be defined as the occurrence of an organism’s movement in response to a certain chemical stimulus.