Please don't provide handwritten solution .... 4Which of the following is true for the lipids with specific biological functionSelect an answer and amit. For keyboard navigation, use the up/down arrow keys to select an answerInositol 1.4,5-triphosphate (P3) is released by the action of phospholipase C causes an increase in intracellular calciumabdeDiacylglycerol (DAG) also released by the action of phospholipase C but is not important for anything in the process justby itself.Binding of both DAG and IP3 to protein Kinase C, however activates the enzymeOnly A and C are correctA, B and C, all are correct

Cell signaling is mediated by a ligand (usually a hormone but could be other molecules too) binding…

Answered: Which of the following is true for the…

Biochemistry

9th Edition

ISBN:9781319114671

Author:Lubert Stryer, Jeremy M. Berg, John L. Tymoczko, Gregory J. Gatto Jr.

Publisher:Lubert Stryer, Jeremy M. Berg, John L. Tymoczko, Gregory J. Gatto Jr.

Chapter1: Biochemistry: An Evolving Science

Section: Chapter Questions

Problem 1P

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Compare and contrast the following items related to lipid metabolism. Cite their main similarities/or differences. 1.lysophosphatidylcholine vs. phosphatidylethanolamine 2.trimyristin vs. triolein. 3. ACP vs. carnitine-acyl transferase.
What would be the most direct result if NAG (N-acetylglucosamine acid) could not be synthesized? The outer membrane would have nothing to attach to The tetrapeptide chain beneath NAM could not be formed There would be no way to form a dimer with NAM (N-acetylmuramic acid) One of the domains of lipopolysaccharide (LPS) could not be made
A common structural feature of membrane lipids is their amphipathic nature. For example, in phosphatidylcholine, the two fatty acid chains are hydrophobic and the phosphocholine head group is hydrophilic. For each of the following membrane lipids, name the components that are hydrophilic and hydrophobic.. a)phosphatidylethanolamine b) sphingomyelin c) galactosylcerebroside d) ganglioside e) cholesterol
A common structural feature of membrane lipids is their amphipathic nature. For example, in phosphatidylcholine, the two fatty acid chains are hydrophobic and the phosphocholine head group is hydrophilic. For each of the following membrane lipids, name the components that serve as the hydrophobic and hydrophilic units: (a) phosphatidylethanolamine; (b) sphingomyelin; (c) galactosylcerebroside; (d) ganglioside; (e) cholesterol.
Which of the following statements is incorrect? The rigidity of a saturated fatty acid is based on the strong bonding between sp3-hybridized carbon chains. Glycerophospholipids are the most abundant lipids in cellular membranes. In delta notation of fatty acid nomenclature, the numbering starts at the α-carbon from the carboxylic acid end. Hormones, such as testosterone, estradiol and progesterone are examples of steroidal lipids.
The venom of the Eastern diamondback rattler and the Indian cobra contains phospholipase A2, which catalyzes the hydrolysis of fatty acids at the C-2 position of glycerophospholipids. The phospholipid breakdownproduct of this reaction is lysolecithin (lecithin is phosphatidylcholine). At high concentrations, this and other lysophospholipids act as detergents, dissolving the membranes of erythrocytes and lysing the cells. Extensive hemolysis may be lifethreatening.(a) All detergents are amphipathic. What are the hydrophilic and hydrophobic portions of lysolecithin?(b) The pain and inflammation caused by a snake bite can be treated with certain steroids. What is the basis of this treatment?(c) Though the high levels of phospholipase A2 in venom can be deadly, this enzyme is necessary for a variety of normal metabolic processes. What are these processes?
Steroid derivatives like cholesterol are also part of the lipid family. Name three useful by-products that cholesterol can be converted into within the body.
Choose any/all that apply to lipids. Farnesyl and palmitoyl can act as anchors for proteins that function at the cell membrane. Steroids like cholesterol that function as membrane lipids have a rather unique structure when compared to the circulating steroid hormones such as testosterone. Phosphoglycerides contain a phosphorylated alcohol that is buried deep within the hydrophobic core of the plasma membrane. A fatty acid that has 16 carbons and two cisdouble-bonds would have a higher melting point than a fatty acid that has 16 carbons and three cis double-bonds. Fatty acids are stored as glycolipids in adipose tissue. Omega-3 fatty acids such as alpha-linolenate are precursors to important hormones and are constantly being synthesized in the pancreas.
Can you please explain the diagram it has lots of parts and can you explain in simple terms as to what it's trying to show and tell Summary of the effects of hyperthyroidism and eprotirome on serum markers and metabolites in lipid metabolism. 7?-OH-cholesterol, 7?-hydroxycholesterol; BAs, bile acids; CE, cholesteryl ester; CETP, cholesteryl ester transfer protein; CM, chylomicron; CMR, chylomicron remnant; HMG-CoAR, HMG-CoA reductase; HSL, hormone sensitive lipase; SRBI, scavenger receptor class B type I.
Which statement is true about given the topic. 1. Phospholipids. Sphingophospholipids: Sphingosine bonded with 2 Fatty acid molecule via amide linkage and a phosphate group via ester linkage. Glycerophospholipid: 2 Fatty Acid chain, Phosphate and alcohol. 2. Eicosanoids. These are potent regulators of cellular functions. These are derived from arachidic acid further metabolized into three pathways namely cyclooxygenase, lipoxygenase and the CYP450 pathway. 3. Fatty Acid. Fatty acids may also be classified based on the number of carbon atoms where SCFA are fatty acids with 4 to 6 carbons, MCFA with 8 to 10, and LCFA with 12 to 16 carbon atoms. In humans, the simplest fatty acid constructed are the triglycerides composed of fatty acids esterified to a glycerol atom.
Which of the following statements are correct about protein folding (select all that appy)? A. Protein folding is a very slow process with most proteins requiring >30 min to go from unfolded to native conformation B. The mature two-chain form of insulin spontaneously folds into the native conformation C. A sharp transition in the presence of denaturants (See Figue 8.1) suggests the protein folds without intermediates D. Proteins randomly sample each possible conformation before arriving final native state E. Proteins with disulfide bridges tend not follow a simple two-state folding mechanism.
Kindly answer numbers 4, 5 and 61. The metabolic precursor for the production of most eicosanoids isa. Cholesterolb. Sphingosinec. Arachidonic acidd. Eicosapentanoic acids2. Aspirin reduces inflammation and fever by inhibiting the formation of which of the following types of messenger lipids?a. Prostaglandins; Thromboxanesb. Thromboxanes; Prostaglandinsc. Leukotrienes; Thromboxanesd. Progestins; Prostaglandins3. Which of the following is a correct pairing of concepts?a. Male sex hormones: androgensb. Pregnancy hormones: estrogenc. Female sex hormones: progestinsd. After menopause hormones: estradiol 4. Which of the following substances is associated with Na+/K+ balance in the human body?a. Cortisolb. Cortisonec. Aldosteroned. Prednisolone5. Which of the following statements concerning steroid hormones is correct?a. Some, but not all of them, are cholesterol derivatives.b. Some, but not all of them, are glucose derivatives.c. Some, but not all of them, are fatty acid derivatives.d. All…

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