Which glycerophospholipid has a net charge of zero at pH 7? phosphatidylserine phasphatidic acid phosphatidylcholine phosphatidylglycerol phosphatidylinositol 4,5-bisphosphate
Q: Which of the following lipids is used for energy storage? A. glycolipids B. glycerophospholipids C.…
A: A group of organic compounds includes lipids that are insoluble or poorly soluble in water.…
Q: Which of the following polysaccharides is used as an energy-storage molecule in plants?a. glycogenb.…
A: Plants synthesize their food by the process of photosynthesis in presence of sunlight and…
Q: Which structural component is the main difference between a glycerophospholipid and a sphingolipid?…
A: Sphingolipids are a class of lipids that have a sphingosine backbone - organic aliphatic amino…
Q: Give the structural units common to all: fats and oils…
A: Lipids are molecules that contain hydrocarbons and make up the building blocks of the structure and…
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: Which one of the following statements about the molecular structure of phosphatidylcholine is TRUE?…
A: Phospholipids are a class of lipid molecule that is the most important component of all cell…
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: fatty acid fatty acid fatty acid fatty acid fatty acid phosphate alcohol phosphate alcohol fatty…
A: Lipids are water insoluble components of cell with huge diversity in structure. These can be…
Q: Which of the following lipids are amphiphilic: fatty acids; acylate ions; TAGS; cholesterol;…
A: Amphiphilic or amphipathic are those compounds which are comprised of two different segments one…
Q: Among the glycerophospholipids containing palmitic acid and linoleic acid which will have the…
A: Introduction Glycerophospholipids are the most abundant compounds found in membranes of all cells.…
Q: Which of the following lipids is NOT found in biological membranes? O triacylglycerols O glycolipids…
A: Lipid of biological membrane :-
Q: List three features of this fatty acid structure that are not commonly found in human fatty acids.…
A: fatty acids are long chain of carbon atoms which are produces when lipids and carboxylic acid come…
Q: ich of the following molecules is NOT amphipathic? triacylglycerides fatty acids sphingolipids o…
A: Hydrophilicity is the character of the molecules in which molecules love water that is they dissolve…
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 of the following membrane lipids have a direct glycosidic linkage between the head-group sugar…
A: Lipids are organic compounds which are fatty acids or the derivatives of fatty acids. They are…
Q: Which of the following is the common carbohydrate in all types of gangliosides? O D-galactose…
A: Glycolipids are lipid molecules containing carbohydrate residues linked to a hydrophobic lipid…
Q: Classify the given lipids based on platform molecule. Glycerol-based Sphingosine-based both…
A: Lipids are organic compounds that are soluble in organic solvents and insoluble in water.Major types…
Q: What is the primary chemical difference between deoxyribose and ribose? Ribose contains fewer…
A: ANSWER;- d) Ribose contains more hydroxyl groups than deoxyribose EXPLAIN;- The ring is made of four…
Q: Facilitated diffusion across a biological membrane of intestinal cells requires the presence of…
A: The process of passive transport (no energy required) by which molecules or ions of living cell move…
Q: A phospholipid can be used to do all the following except O Increase the fluidity with the presence…
A: Phospholipids increase the fluidity of the membrane as postulated by the Fluid Mosaic Model…
Q: Which of the following lipid types is NOT found in biological membranes?
A: Biological membranes are highly ordered structures consisting of mosaics of lipids and proteins.…
Q: CH₂-0-0 _-(CH₂)-CH₂ Triglycerides can be classified by the number of double bonds present in the…
A: A triglyceride has a glycerol backbone in which all the hydroxyl groups are esterified to fatty…
Q: Cholesterol mixes with phospholipids in a biomembrane because cholesterol molecules are…
A: The plasma membrane is the semipermeable membrane which allows selective entry of substances to and…
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: Phosphatidylinositol 4,5-bisphosphate (PIP2) is a __________ that carries a net __________ charge.…
A: Cell is a structural and functional unit of living organisms. Several cells joined together to form…
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: Proteins that bind to specific carbohydrates are called pectins O oligonucleotides…
A: Answer is lectins
Q: Describe the roles of glycerol 3- phosphate, phosphatidate, and diacylglycerol in triacylglycerol…
A: Introduction: Triacylglycerol is an effective lipid storage form in the body, consisting of glycerol…
Q: fatty acids: The phosphatidyl choline with the lowest Tm has two a. 14:0 b. 18:0 O c. 22:0
A: Phosphatidylcholine is an important phospholipid that is present in the cell membrane. It plays a…
Q: glycerophospholipids have a head ans two tails structure give the chemical identity of the head and…
A: Glycerophospholipids are an essential component of the plasma membranes. They are known as…
Q: In both triacylglycerol and phosphoglyceride, there is one glycerol , but triacylglycerol has and…
A: Fat and oil are organic compounds that form lipids. Lipids are used by organisms for storing energy…
Q: Identify the structures shown as glycerophospholipids or sphingolipids.
A: Lipids are not polymers. The simplest form of lipid is fatty acids that are a long chain…
Q: Which one of the following statements about polysaccharides is NOT correct? O Amylopectin contains…
A: Carbohydrates are one of the major macromolecules that are needed for the growth and development of…
Q: Which of the following lipids is NOT found in biological membranes? glycolipids…
A: Glycolipids are substances expressed on the surface of cellular membrane. Glycolipids are lipids…
Q: Phospholipids are an essential component of the phospholipid bilayer necessary to the cell. Which of…
A: The cell membrane is also known as the plasma membrane and is present in all cells. It separates the…
Q: One of the following is not a structural lipid. Sphingomyline Triglycerides Phosphatidylcholine All…
A: Lipids are one among the 4 macromolecules required by the body. Lipids are highly hydrophobic in…
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: The molecular structure shown here represents which lipid component? monounsaturated fatty acid…
A: Ans.18 correct option is C (monounsturated fatty acid) The correct answer is monounsaturated fatty…
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: Define the following terms:a. glycogenb. cellulosec. N-glycand. O-glycane. glycosaminoglycan
A: Introduction:
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: The following is an example of a type of lipid. Answer the following questions based on its…
A: Lipids are made up of a glycerol molecule attached to three fatty acid molecules. Such a lipid is…
Q: Which of the following substances cannot be used to cleave peptide bonds in polypeptides? cyanogen…
A: Proteins are complex biomolecular structures that are made of amino acids. The amino acids are…
Q: All of the following pairs are well-match, except one: O oleic fatty acid is : unsaturated fatty…
A: Fatty acid is a carboxylic acid present with a long aliphatic chain which can be either saturated or…
Q: Why are glycerophospholipipds important to function and structure
A: Glycerophospholipids are amphipathic molecules that can serve as structural components of membranes,…
Q: The following structure is a glycerophospholipid. a. Circle & label the 4 parts of the molecule:…
A: Glycerophospholipids are molecules that are composed of fatty acids, glycerol, phosphate, and some…
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- Question 11. // Hint: Isoelectric focusing separates proteins based on their pI values, and can separate proteins that only differ by a net charge of ±1.±1. Recall that an amino acid residue with a negatively charged R group has a relatively low isoelectric point (pI) where it has zero net charge. Likewise, an amino acid residue with a positively charged R group has a relatively high isoelectric point (pI) where it has zero net charge. Order from Low pH to High pHQUESTION 16 Peptidyl transferase activity (peptide bond enzyme activity) is associated with what site in the ribosome? E P A XQuestion 12 Carbohydrates that appear in glycosylated proteins and lipids in the GA include I. N-Acetylglucosamine II. fucose III. mannose IV. galactose I, II, IV only I, II, III only II, III, IV only I, II, III, IV
- QUESTION NO. 1 Cystic fibrosis is a frequent generic disease of Caucasians. The CF gene codes for a protein called the cystic fibrosis transmembrane conductance regulator (CFTR) which functions as a cAMP-regulated chloride channel. The protein has two membrane-spanning domains, two domains that interact with ATP, and one regulatory domain. The most common defect is in the gene for one of the ATP binding domains. The result is a protein that does not fold correctly in the endoplasmic reticulum, is not properly glycosylated, and is nor transported to the cell surface. Rather, it is degraded in the cytosol within proteasomes. Drugs that foster chaperone interaction with the mutant protein are a potential therapeutic approach. Chaperones A. are always required to direct the folding of proteins. B. when bound to protein increase the rate of protein degradation. C. usually bind to strongly hydrophilic regions of unfolded proteins. D. sometimes maintain proteins in an…Question:- 18. For facilities that employ a multiskilled workforce to draw blood cultures and use iodine preparations, the combination of antiseptic solutions that has been shown to be most effective in reducing contamination is a. separately packaged alcohol and povidone iodine b. separately packaged alcohol and iodine tincture c. commercially prepackaged prep kits containing iodine tincture d. commercially prepackaged prep kits containing an iodophorquestion 24 DNA is a hereditary molecular that is composed of A Deoxyribose,phosphate, and nitrogen bases B Deoxyribose,a pentose, and nucleic acids C Sugar,proteins and thymine D Adenine, phosphate, and ribose
- Question 1 - Photosynthesis lab Four common plant pigments are likely to be separated and visualized by the paper chromatography experiment. List the expected colors of each of these four pigments below.A) CaroteneB) Chlorophyll aC) Chlorophyll bD) Xanthophyll Explain the mechanism of how floating disks correspond to the rate of photosynthesis. List 2 controlled variables in the leaf disk assay List 2 manipulated variables in the leaf disk assay What is the purpose of adding baking soda to the leaf disk assay? What would you expect during the leaf disk assay if baking soda was not added at all?QUESTION NO. 1Statements: (1) Glucose is both a hexose and a aldose. (2) There can never be more than three enantiomers for a molecule. (3) All common disaccharides have beta-one-four linkages. Which statements are true?QUESTION NO.2 Erythrocyte glucose transporter illustrates the type of A. ion driven active transport B. facilitated diffusion C. active transport D. simple diffusion E. secondary active transportQUESTION NO.3 which of the following statement/s accurately describe the surface of a lipid droplet? A. a monolayer of phospholipids B. a bilayer of phospholipid C. a network of perilipin protein D. a structured layer of triacylglycerol E. a chaotic hydrophobic/ hydrophilic interfaceQuestion 37 Locard’s exchange principle states that, whenever two objects come into contact with one another, there is exchange of materials between them. a. True b. False
- Question No.1 (1) A positive Tollen’s test classifies a monosaccharide as a reducing sugar. (2) The bond which links the two monosaccharides of a disaccharide together is a peptide bond. (3) Monosaccharides cannot be broken done into simpler units by hydrolysis reactions. Which of the following statements are true? Question No. 2 : Assuming that a strand of DNA has the following sequence: 5'-AACCGGTT-3' What is the sequence of complementary strand of DNA, from the 5' to the 3' direction?Question 52 A 6-month-old child has developed skin irritation due to an allergic reaction. He has been prescribed a topical skin ointment. The nurse will consider which of the following before administering the drug? That the infant's skin has greater permeability than that of an adult That there is less body surface area to be concerned about That there is decreased absorption rates of topical drugs in infants That there is a lower concentration of water in an infant's body compared with an adultQUESTION NO. 1Targeting a protein to be degraded within proteasomes usually requires ubiquitin. In the function of ubiquitin all of the following are true except: A. ATP is required for activation of ubiquicin. B. a peptide bond forms between the carboxyl terminal of ubiquitin and an ε-amino group of a lysine . C. linkage of a protein to ubiquitin does not always mark it for degradation. D. the N-terminal amino acid is one determinant of selection for degradation. E. ATP is required by the enzyme that transfers the ubiquitin to the protein to be degraded QUESTION NO. 2Much of procollagen formation occurs in the endoplasmic reticulum and Golgi apparatus which requires signal peptide. All of the following statements about targeting a protein for the ER are true except. A. signal peptide usually has a positively charged N-terminus and a stretch of hydrophobic amino acids. B. signal peptide emerging from a free ribosome binds signal recognition…