What is the function of the structure at D?
What's the function of structure e?
What is the function of Structure E? Cholesterol helps to stabilize the structure of the plasma membrane.
Which of these is a hydrophobic like the interior of the plasma membrane?
Which of these is hydrophobic like the interior of the plasma membrane? Lipid soluble molecules are hydrophobic.
What is the role of osmosis in the dialysis process mastering biology?
During osmosis, fluid moves from areas of high water concentration to lower water concentration across a semi-permeable membrane until equilibrium. In dialysis, excess fluid moves from blood to the dialysate through a membrane until the fluid level is the same between blood and dialysate.
What is the function of structure?
Structure refers to something's form, makeup or arrangement. Function refers to something's job, role, task, or responsibility.
Do cells join together to form organelles?
Cells join together to form organelles, which then form our organs and organ systems. The cells in our bodies collectively carry out all of the functions necessary for us to stay alive. Although human cells are diverse in size, shape, and function, they have essentially the same organelles and general structure.
Where is the genetic information of the cell stored?
Nucleus - DNA is the genetic information of the cell, and it is stored in the nucleus.
What is the role of cholesterol in animal cell membranes?
Cholesterol functions to immobilise the outer surface of the membrane, reducing fluidity. It makes the membrane less permeable to very small water-soluble molecules that would otherwise freely cross. It functions to separate phospholipid tails and so prevent crystallisation of the membrane.
When a person is dehydrated his or her IV fluids?
should be hypotonic, because if dehydrated, he or she needs as much water as possible.
How can we observe the structure of the plasma membrane?
Answer: Many integral proteins are transmembrane proteins, which span the lipid bilayer with portions exposed on both sides of the membrane. These proteins can be visualized in electron micrographs of plasma membranes prepared by the freeze-fracture technique.May 17, 2021
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What do these terms hydrophilic and hydrophobic mean and how do they relate to the structure of a cell membrane?
Hydrophilic means an attraction to water, causing the outside of the bilayer to stretch out and maximize surface area contact with water. Hydrophobic means a repulsion to water and will stay away from water; meaning it will reduce surface area with water, essentially at all costs.
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What is plasma membrane structure?
The plasma membrane is composed of a bilayer of phospholipids, with their hydrophobic, fatty acid tails in contact with each other. The landscape of the membrane is studded with proteins, some of which span the membrane. Some of these proteins serve to transport materials into or out of the cell.
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What is the difference between diffusion and osmosis?
In diffusion, particles move from an area of higher concentration to one of lower concentration until equilibrium is reached. In osmosis, a semipermeable membrane is present, so only the solvent molecules are free to move to equalize concentration.
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Does dialysis use diffusion or osmosis?
Dialysis is a process that is like osmosis. Osmosis is the process in which there is a diffusion of a solvent through a semipermeable membrane.Aug 15, 2020
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Where does osmosis occur in the kidney?
The largest part of each nephron is inside the medulla. The environment of the medulla has a higher osmolarity than the inside of the nephron. You know what that means - osmosis time! Water travels from inside the nephron tubes, through a semipermeable membrane, out into the medulla.Apr 9, 2020
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What is the structure and shape of DNA?
- The shape of a DNA molecule is called a double helix, which looks like a twisting ladder. The "rungs" are made from four nitrogenous bases: adenine , thymine , guanine and cytosine. Sugars and phosphate groups are also part of the structure.
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What is the primary level of DNA structure?
- Primary structure consists of a linear sequence of nucleotides that are linked together by phosphodiester bonds. It is this linear sequence of nucleotides that make up the Primary structure of DNA or RNA .
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What are the components of a DNA structure?
- DNA is a long molecule composed of two chains of smaller molecules called nucleotides , each which contain a region of nitrogen called the nitrogenous base, a carbon-based sugar molecule called deoxyribose and a region of phosphorus called the phosphate group.
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What is the definition of DNA structure?
- DNA structure. DNA is made up of molecules called nucleotides. Each nucleotide contains a phosphate group, a sugar group and a nitrogen base. The four types of nitrogen bases are adenine (A), thymine (T), guanine (G) and cytosine (C). The order of these bases is what determines DNA's instructions, or genetic code.
