Which part of the phosphatidylcholine molecule would be the least polar (least hydrophilic)?

Q: Triglycerides are comprised of glycerol plus  ____ fatty acids, and are ____ compared to fatty…

A: Fatty acids are lipids composed of long-chain hydrocarbons ending by a carboxylic acid functional…

Q: is the total number of rings present in cholesterol is the total number of carbons present in…

A: A group of organic compounds includes lipids that are insoluble or poorly soluble in…

Q: Which of the following statements is false? * Most natural fatty acids contain odd numbers of carbon…

A: Fatty acids are molecules with a hydrocarbon chain and a carboxylic acid end. Lipids are formed…

Q: Name which, if any, of the following groups are notaldose–ketose pairs: d-ribose and d-ribulose,…

A: Carbohydrates are polyhydroxy aldehydes and ketones which are associated with reducing property.…

Q: Which of the following statements is true of fatty acids? Group of answer choices The more carbon…

A: Fatty acids are the long hydrocarbon chain with a terminal carboxyl group. These help to form…

Q: What is the common precursor of all phospholipids and TAG? Phosphatidic acid…

A: Phospholipids are a group of hydrophilic phosphate heads and hydrophobic tails. phospholipids are…

Q: Given lecithin, sphingomyelin, cephalin, phosphatidylcholine which of the following does not contain…

A: Lecithin is a fatty acid substance present in animal and plant tissues and amphiphilic in nature. It…

Q: because it is mainly composed of unsaturated fatty acids because it is mainly composed of long,…

A: INTRODUCTION Saturated fats have chain like structure which allows them to stack very well and form…

Q: In which of the following glycerophospholipids two phosphatidic acids share a single glycerol?a)…

A: Glycerophospholipids are involved in cell signalling systems and also anchor for proteins in the…

Q: Which of the following statements DO NOT describe the similarity between glycogen and amylopectin? O…

A: Glycogen and amylopectin are polysaccharides which are composed of glucose monomers. These glucose…

Q: Which part of the phosphatidylcholine molecule would be the most non-polar (hydrophobic)? the…

A: Phosphatidylcholine is a type of phospholipid with choline acting as the head group. It is the major…

Q: Which of the following is not amphipathic?     ceramide     glycerol     phosphatidylcholine…

A: Amphipathic molecules are chemical compounds with both polar and nonpolar regions, making them both…

Q: Which part of the phosphatidylcholine molecule would be the most negatively-charged? the fatty acid…

A: Phosphatidylcholine – it is a phospholipid, a major constituent of the cell membranes. Phospholipids…

Q: The difference in chemical structure between cerebrosides and gangliosides is that gangliosides…

A: Cerbroside and ganglioside are sphingolipid derivatives. Gangliosides can act as receptors on the…

Q: Which glycerophospholipid has a net charge of zero at pH 7? phosphatidylserine phasphatidic acid…

A: Glycerophospholipids (also called as phosphoglycerides ) have glycerol as its platform molecule. 2…

Q: Which of the following fatty acids, if incorporated into a typical eukaryotic membrane phospholipid,…

A: The cell membrane is the biological membrane that separates the interior of the cell from the…

Q: A group of C20 lipids that contain a five-membered ring with two long side chains. OA. sphingolipids…

A: Introduction :- Sphingoid bases, a group of aliphatic amino alcohols that includes sphingosine, form…

Q: Identify the following glycerophospholipid, which helps ­conduct nerve impulses in the body, as a…

A: Membranes are hydrophobic and semi-permeable in nature. The membrane is made up of primarily…

Q: Which of the following is NOT a major function of lipids?   A. components of steroid hormones   B.…

A: Lipids have three main biological activities in the body: they are structural components of plasma…

Q: Which of the following fatty acid has 16 carbon atoms?a) Linolenic acidb) Oleic acidc) Palmitic…

A: Fatty acids are carboxylic acids with a long aliphatic chain. They can be either unsaturated or…

Q: Draw an example of each of the following lipids, and compare and contrast them: Triacylglyceride,…

A: Introduction Triacylglycerols are triesters of fatty acids and glycerol. These are composed of a…

Q: Looking at the two different types of molecules (glycerol and fatty acids), describe the molecules…

A: Molecules  Molecules are the chemical that are made up of two or more than two, same or different…

Q: Which of the following statements is incorrect?     The rigidity of a saturated fatty acid is…

A: The biological macromolecules can be classified as nucleic acids, proteins, lipids and…

Q: The hydrolysis of 1 molecule of triacylglycerol produces. molecule/s of and molecule/s of 3, fatty…

A: Biological macromolecules are those large molecules that are necessary for the survival and growth…

Q: Which of the following are derived from cholesterol? A. ceramide B. ganglioside C. prostaglandin D.…

A: Cholesterol is a very important molecule for a number of reasons. All steroid hormones are formed…

Q: a. Sphingolipids always contain glycerol and fatty acids. b. Phosphatidylcholine is a typical…

A: Introduction :- The term "cerebrosides" refers to a class of monoglycosylceramide…

Q: 18. Which of the following is a free fatty acid? 1. Eicosapentaenoic acid 2. Citric acid 3.…

A: Fatty acid is a long chain of saturated or unsaturated hydrocarbon having a terminal carboxylic…

Q: Which of the following molecules is NOT an amphipathic?     phosphatidyl choline     cholesterol…

A: Amphiphatic are the molecules which contain both hydrophobic as well as hydrophilic in their…

Q: . What reactive groups are involved in the joining of glycerol and fatty acids? 2. Which one of…

A: Fats are produced when glycerol is esterified with the fatty acids. Depending on the number of fatty…

Q: Which of the following statements incorrectly describes the structure of an adenosine triphosphate…

A: ATP is the molecule of energy in the cell. It function is - provide energy and helps in storage.

Q: Arrange each compound according to its solubility in water. Assume that each acylglycerol contains…

A: Hydrophobicity is the association that is observed if nonpolar groups or molecules are placed in an…

Q: Explain the comparison of a triacylglycerol, a phosphoacylglycerol, and a sphingomyelin ?

A: Lipids  include fats, oil, waxy like substances. They are non-polar and hydrophobic in nature…

Q: Which of the following kinds of lipids can act as hormones in animals?   A. Phospholipids   B. Waxes…

A: Lipids - Lipids are a type of macromolecules. These lipids are made up of hydrocarbons. Lipids are…

Q: function of cholesterol in the lipid bilateral cell membrane

A: Cell membrane is the biological membrane that separates inside contents from outside environment.…

Q: Which of the following fatty acids is/are most likely responsible for the liquid state of oils? COOH…

A: Fats and oils are the composed of triglycerides in which the glycerol is esterified with fatty…

Q: What are the products of the saponification of a triglyceride? 3 fatty acids and a glycerol 3 fatty…

A: Triglycerides are classified as lipids and are hydrophobic in nature. They are soluble in non-polar…

Q: Why Linoleic acid and Linolenic acid are called essential fatty acids

A: Proteins are one of the macromolecules that contribute numerous functions in living organisms, such…

Q: An illustration of a simple triacylglycerol is given. Choose which type of fatty acid is described…

A: Fats are the esters of monocarboxylic fatty acids with the hydroxyl groups of the alcohol. The fatty…

Q: Indicate whether each of the following is a component of (1) a cerebroside but not a ganglioside,…

A: Cerebroside and ganglioside both are sphingolipids which are integral part of the plasma membrane.…

Q: Which is NOT a phospholipid? cerebroside phosphatidylinositol cardiolipin phosphatidylethanolamine…

A: Phospholipids are the compounds that are composed of two fattyacids, Glycerol or other alcohol group…

Q: Which of these compounds may be a part of cell membranes: triglycerides, phosphatidylcholine,…

A: Cell membrane is the envelope that surrounds the cytoplasm. It provides shape and structure to the…

Q: Collagen consists of three helices with carbon backbones that are tightly wrapped around one another…

A: Collagen is the hydrophobic, natural, structural protein present in the extracellular-matrices of…

Q: Rank the following in order of increasing solubility in water: a triacylglycerol, a diacylglycerol,…

A: There are four major categories of biomolecules, lipids, carbohydrates, proteins, and nucleic acids.…

Q: Which of the following is NOT an isoprene-derived lipid?     Beta-carotene     Beeswax…

A: Lipids are amphipathic molecules. Amphipathic molecules contain the polar head and non-polar or…

Q: Define a saturated fatty acid. Provide one example of a saturated fatty acid

A: Biomolecules confer with carbon- based chemical compound that are produced by a living organism.…

Q: Why do cis double bonds lower the melting point of a fatty acid while  trans double bonds have an…

A: Biological macromolecules are those large molecules that are necessary for the survival and growth…

Q: In which of the following pairs of fatty acids are both members of the pair polyunsaturated fatty…

A: Polyunsaturated fatty acids are those that have more than one double bond.

Q: Phospholipases act on which type of lipid? A. glycolipids B. triacylglycerols C.…

A: Lipids are complex fatty acids which are digested by enzymes.

Q: Which of the following pairs of molecules form the pyrimidine ring?a. Glutamate and carbamoyl…

A: pyrimidine is heterocyclic nitrogenous bases found in the nucleic acids DNA and RNA. In DNA…

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.