Explain, why high-density lipoprotein (HDL) cholesterol is known as the "good" cholesterol?

Q: Are triacylglycerols :  insoluble in water? very oxidized, contain-glycerol-fatty acids and…

A: Triacylglycerols are non-polar and hydrophobic.

Q: What do you mean by ergosterol?

A: Ergosterol:              A sterol that resides on the cell membranes of fungi and acts to maintain…

Q: Why must cholesterol be transported through the bloodstream in lipoprotein particles?

A: Proteins are known to be extremely complex macromolecular components. They are located in all living…

Q: Draw a cholesterol molecule and indicate the isopentenylunits.

A: Cholesterol is an organic molecule which is a sterol and is biosynthesized by all animals cells and…

Q: Which of these fats, phospholipids, or steroids would you predict would be on the outside of a…

A: Step 1 Lipoprotein is a member of a group of substances that contains lipids and proteins. The…

Q: Would altering the unsaturated:saturated fatty acid ratio in tissues be easier to accomplish in…

A: Saturated and unsaturated fatty acids exist. Because converting a double bond to a single bond…

Q: Why do adipose cells appear empty?

A: Adipose tissue are the specialized connective tissue that consists of lipid rich cells known as the…

Q: Explain why HDL lipoprotein particle is called “good” cholesterol.

A: Cholesterol is a lipid (fatty substance). It occurs in animal cell membranes. It is also required…

Q: Butter can become rancid as a result of hydrolysis by microorganism. Which of the fatty acids are…

A: Microorganisms are present in the environment everywhere such as air, soil and water. When butter is…

Q: The biologically active form of a fatty acid is the thioester of____________________.

A: The simplest forms of lipids are called fatty acids. They contain even number of carbon atoms in…

Q: What is cholesterol, what causes high cholesterol and explain  the 2 types of cholesterol.

A: Cells require different types of nutrients for proper functioning. If the amount of nutrients in the…

Q: Why are glycerophospholipids more soluble in water than triacylglycerols?

A: The cell membrane is composed of a lipid bilayer in which the proteins remain embedded. Among all…

Q: Alanine, cysteine, glycine, serine, and threonine are amino acids whose breakdown yields pyruvate.…

A: Amino acids catabolism can either be done to produce urea by removal of α-amino groups or to form…

Q: How does a ketogenic diet decrease the level of urea in obese patients and increase the level of…

A: Acetyl-coA, which is formed from the B-oxidation of fatty acids, is used to make ketones. Ketone…

Q: Why do cell membranes contain cholesterol?

A: All the prokaryotic and eukaryotic cells are enclosed by an elastic, thin covering called cell…

Q: Why "cellulose is composed of a long, branced chain of B-glucose subunits" is false?

A: Introduction Polysaccharides, also known as polycarbohydrates, are the most common type of…

Q: Why must cholesterol be packaged for transport rather than occurring freely in the bloodstream?

A: Cholesterol is a class of derived lipids made up of fused cyclohexane and cyclopentane rings which…

Q: In what chemical form does cholesterol usually exist in the bloodstream?

A: Cholesterol is considered a lipid component that is found in all cells of the human body. It plays a…

Q: Describe what are the functions of cholesterol in the body.

A: Cholesterol may be a steroid synthesized by animal cells and is additionally an element of the diet,…

Q: (a) What is the difference between low-density lipoproteins (LDLs) and high-density lipoproteins…

A: Cholesterol is a chemical that the body produces naturally. Cholesterol is a component of cell…

Q: In dietary context, what is the difference between good and bad cholesterol?

A: Since you have asked multiple question, we will solve the first question for you. If you want any…

Q: Which of these fatty acids has the higher melting point? Explain why.(a) Linolenic acid (b) Stearic…

A: Fatty acids are defined as carboxylic acid, containing a long aliphatic chain that can be either…

Q: Which step in lipid metabolism would you expect to be affected by 3,4-dihydroxybutyl-1-phosphonic…

A: Lipid metabolism is the synthesis and degradation of lipids in cells, involving the breakdown or…

Q: Identify the regulatory processes in cholesterol synthesis.

A: Cholesterol is considered the major sterol present in animal tissue. It is present in the animal…

Q: Describe the use the body makes of cholesterol.

A: Cholesterol is a waxy fat-like substance that was made in the liver. It was essential for all living…

Q: Provide an explanation for the fact that most fatty acids are16 or 18 carbons long.

A: Long-chain fatty acids (LCFA) are fatty acids with aliphatic chains that are 13-21 carbons long.…

Q: Although high cholesterol level is associated with cardiovascular disease, cholesterol plays an…

A: Cholesterol is an essential fat that is present in our body and is important for the synthesis of…

Q: s the hydrogen at the junction of rings A and B axial or equatorial to ring A? Is it axial or…

A: In chemistry, the bonds to atoms which are not part of a ring structure can be of two types. These…

Q: The following are essential fatty acids, EXCEPT: O A. oleic acid OB. linoleic acid O c. linolenic…

A: Fatty acids are the one of the important components of lipids, can be seen in plants, animal and…

Q: A cholesterol sample is prepared using acetyl-CoA labeledwith 14C at the carboxyl group as…

A: The condensation of three acetyl groups produces mevalonate, which contains six carbons.

Q: Explain the affect on the structure and physical properties of a fatty acid when increasing the…

A: Fatty acids are of two type’s; saturated fatty acids and unsaturated fatty acids. Saturated fatty…

Q: 15.53 Why is LDL called "bad" cholesterol?

A: Lipids(fats) are transported in our as lipoproteins as they themselves are insoluble in blood. They…

Q: Which of these fatty acids has the lower melting point? Explain why.(a) Linoleic acid (b) Stearic…

A: Fatty acids are long aliphatic chain consisting of carboxylic group. It can be either saturated or…

Q: What mass of citric acid (triprotic, C6H5O7H3) contains 152 mEq of citric acid?

A: we can find this by using mole formula.

Q: at room temperature, amino acids are solids with relatively high decomposition points. explain why

A: Amino acid contain a central alpha-carbon, a hydrogen, an alpha-amino group, an alpha-carboxylic…

Q: Is it true that coconut oils contain no cholesterol? Provide reasons

A: Coconut oil is basically a tropical oil derived from the dried nuts of coconut palm tree.

Q: Steps for cholesterol synthesis

A: Cholesterol is a major component of animal cell membranes. Most of the cholesterol is derived from…

Q: What does the term “lipid divide” imply?

A: Lipids : Lipids are fatty , waxy or oily compounds that are soluble in organic solvents and…

Q: How is cholesterol structurally distinct from bile salts?

A: Cholestrol: It is a sterol, a type of lipid. Bile salts : Derived from cholesterol

Q: Which step in lipid metabolism would you expect to be affected by 3,4-dihydroxybutyl-1-phosphonic…

A: Lipid metabolism is the synthesis and degradation of lipids in cells, involving the breakdown or…

Q: Why do most fatty acids have an even number of carbon atoms ?

A: Most fatty acids are even-chained, e.g. stearic and oleic , meaning they are composed of an even…

Q: Describe the three stages of cholesterol synthesis.

A: Cholesterol is a natural substance. It's a lipid called a sterol (or modified steroid). All animal…

Q: Explain why saturated (flat) fatty acids cause more plaque in blood vessels than unsaturated…

A: In an aqueous environment the polar heads of the fatty acids will engage in favorable interaction…

Q: Explain why cholesterol is not saponifiable.

A: Cholesterol : It is a waxy, fat-like substance that's found in all the cells in your body. your body…

Q: Explain to a young man, with reduced numbers of receptors for LDL, why his cholesterol level is…

A: LDL (low-density lipoproteins) is often referred to as "bad cholesterol" because high LDL level…

Metabolic pathways

Metabolism is defined as the group of life-supporting, enzyme-mediated chemical reactions in organisms. A metabolic pathway is a set of these chemical reactions that involve anabolism (synthesis of complex biomolecules) and catabolism (breakdown of biomolecules into small molecules) that occur inside a cell. Metabolites are the reacting substances, products, and intermediate substances of an enzymatic process that are altered by a series of chemical events catalyzed by enzymes.