Predict the properties of a lipid bilayer in which all of the hydrocarbon chains were saturated. What would be the properties if all the hydrocarbons were unsaturated?

Q: Why are phospholipds arranged tail to tail instead of head to head on lipid bilayers.

A: Hydrophilic molecules dissolve in water because they contain charged groups. Hydrophobic molecules…

Q: Draw a phospholipid that contains a 12 carbon saturated chain and a 14 carbon 2-3 chain with an…

A: Lipids are biomolecules that are part of cells' structural components, cell signaling, and energy…

Q: What characteristics of phopholipids make the lipid bilayer fluid?

A: The plasma membrane, also called the cell membrane, is the membrane found in all cells that separate…

Q: Lipid bilayers are amphipathic. What does this mean?

A: Hydrophilicity is the character of the molecules in which molecules love water that is they dissolve…

Q: Describe the macromolecular and biophysical characteristics of collagen in the extracellular matrix…

A: There are few points to know about collagen.  It is the major structural protein in the…

Q: Describe the structure of a phospholipid and explain which regions of the phospholipid are…

A: Plasma membrane, also known as cell membrane is found in all cells. It is a network of lipids and…

Q: Although we tend to think of the cell membrane as a smooth covering for a cell, the membrane can…

A: The cell membrane is a bilayer of phospholipid. It contains lipids, proteins and also carbohydrates…

Q: Which of the following is false about the way in which the cell membrane maintains its structure? A…

A: The cell membrane or the plasma membrane is the outer covering of a cell that encloses inner…

Q: e cell membranes are made of phospholipids arranged in a structure called the 'phospholipid…

A: Singer and Nicholson (1972) proposed the fluid mosaic model of biological membranes. According to…

Q: How are detergent molecules similar to phospholipid molecules in plasma membranes? Explain the…

A: Introduction:  Phospholipids are the class of lipids that are a major component of all cell…

Q: What type of lipids would you expect to find concentrated in lipid rafts? APoly-unsaturated…

A:

Q: Could a lipid be considered a polymer? Why or why not?

A: Lipids are one of the most important components of living cells. According to chemistry, a lipid is…

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: Phospholipids will spontaneously form bubbles of bi-layer when put into water. Why do they do this?…

A: Phospholipid amphipathic molecules of hydrophilic phosphate head and hydrophobic fatty acid tails.

Q: The structure below includes both carbohydrate and lipid portions. A. Circle the portion(s) of the…

A: Lipid molecules are the integral part of the plasma membrane. Lipids present in the plasma membrane…

Q: Which property of phospholipids is responsible for the formation of phospholipid bilayers?

A: All cells are enclosed by a plasma membrane that forms a barrier between the cell and its…

Q: How would increasing the amount of saturated phospholipid tails in the cell membrane affect the…

A: Introduction There are two layers of lipids in the phospholipid bilayer. A hydrophobic (water…

Q: If you place phospholipids in an oil-based solution, would they still self-assemble into a bilayer?…

A: All the cells have an outer layer that provides rigidity and protection. This layer is called plasma…

Nucleotides

It is an organic molecule made up of three basic components- a nitrogenous base, phosphate,and pentose sugar. The nucleotides are important for metabolic reactions andthe formation of DNA (deoxyribonucleic acid) and RNA (ribonucleic acid). 

Nucleic Acids

Nucleic acids are essential biomolecules present in prokaryotic and eukaryotic cells and viruses. They carry the genetic information for the synthesis of proteins and cellular replication. The nucleic acids are of two types: deoxyribonucleic acid (DNA) and ribonucleic acid (RNA). The structure of all proteins and ultimately every biomolecule and cellular component is a product of information encoded in the sequence of nucleic acids. Parts of a DNA molecule containing the information needed to synthesize a protein or an RNA are genes. Nucleic acids can store and transmit genetic information from one generation to the next, fundamental to any life form.