A. What are the biochemical molecules that make up lipids and what is their arrangement in...

A. What are the biochemical molecules that make up lipids and what is their arrangement

in biological membranes?

B. Which is the other biopolymer associated with membranes? Explain with a sketch the different forms of this biopolymer in the membrane.

Solutions

Expert Solution

A. Phospholipids are the repeating units of biomembranes. One molecule of phospholipid is made up of one phosphate group and glycerol esterified to one to three molecules of saturated or unsaturated fatty acids.

Phosphate group is present towards the extra- and intracellular surface of the membrane and interacts with the aqueous phase.

Fatty acids are present towards the inner side of the membrane and forms the hydrophobic fatty acid core.

B. Proteins are also present in biological membranes apart from phospholipids. There are two proteins -

Intrinsic	Extrinsic
Transmembrane proteins	Peripheral proteins
Span throughout the membrane	present at either extracellular or intracellular surface of the membrane
Example, receptors meant for transportation of molecules	Example, enzymatic in functions

Please rate high.

gladiator answered 1 year ago

Next > < Previous

Related Solutions

How are the arrangement of and movement of the particles that make up a gas different...

How are the arrangement of and movement of the particles that make up a gas different than the arrangement and movement of the particles that make up solid to liquids?

class discussions about categories of biochemical molecules

what properties of lipids make them a good source of storage?

Briefly describe how each of the following groups of molecules is produced in cells; polysaccharides, lipids,...

Briefly describe how each of the following groups of molecules is produced in cells; polysaccharides, lipids, amino acids, proteins, purines/pyrimidines

What kinds of lipids are there?

Sometimes more than one atom arrangement is possible, these are called geometric isomers. For the molecules...

Sometimes more than one atom arrangement is possible, these are called geometric isomers. For the molecules below sketch all the possible geometric isomers. Then keeping in mind that nonbonding pairs on the central atom will try to get as far away as possible from both other bonding and nonbonding pairs, predict which will be the prefferred geometry in nature. Justify your choice. Name the molecular geometry of the prefferred structure. SF4(2 isomers) BrF3(3 isomers) XeF4(2 isomers)

We have discussed the major molecules in the cell (carbohydrates, lipids, proteins, nucleic acids). You are...

We have discussed the major molecules in the cell (carbohydrates, lipids, proteins, nucleic acids). You are going to chose one of these molecules and write a convincing argument for why it should be considered the most important of the four. In your argument you must include: 1) A description of the function of all four molecules and why your choice is the most important. 2) A description of the structure of the molecule you have chosen. 3) Four processes/functions that...

What steps are taken by the pig in digesting lipids to allow hydrophobic lipids to be...

What steps are taken by the pig in digesting lipids to allow hydrophobic lipids to be digested in the aqueous luminal environment?

List the major molecules that make up typical Gram-positive and Gram-negative cell walls and note which...

List the major molecules that make up typical Gram-positive and Gram-negative cell walls and note which molecules are unique to each type of cell wall. How do these molecules contribute to the functions of the cell wall?

biochemical analysis and pH How might the information gained from this lab pertaining to biological molecules...

biochemical analysis and pH How might the information gained from this lab pertaining to biological molecules be useful to you, or how can you apply this knowledge to your everyday life as a non-scientist? The application will be graded according to the rubric below. (20 points)

Subjects