Select all answers that apply Select the statements that are true about the w-3 fatty acids and w-6 fatty acids.The w-3 fatty acids and w-6 fatty acids are considered to be "essential fattyacids" in humans.Humans can synthesize the w-3 fatty acids and w-6 fatty acids themselves, butonly if their skin is exposed to sunlight for a period of time.The w-3 and w-6 fatty acids serve as important vitamin precursors in humans.The w-3 and w-6 fatty acids are both required for the synthesis of importanthormones in the human body.It is critical that we obtain an appropriate balance of w-3 and w-6 fatty acids inthe human diet, so that the appropriate fluidity of our membranes can bemaintained.

There are four classes of biological macromolecules- they are nucleic acid, proteins, lipids and…

Answered: Select the statements that are true…

Human Heredity: Principles and Issues (MindTap Course List)

11th Edition

ISBN:9781305251052

Author:Michael Cummings

Publisher:Michael Cummings

Chapter10: From Proteins To Phenotypes

Section: Chapter Questions

Problem 14QP: If phenylalanine was not an essential amino acid, would diet therapy (the elimination of...

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Trans-fatty acids are synthetic forms of fatty acids made from altered unsaturated fatty acids. Trans-fatty acids are denser, solid at room temperature, and store more energy in the same unit of volume than unsaturated fatty acids. The production of trans-fatty acids involves the reorientation of one of the hydrogen atoms attached to a double-bonded car- bon atom, as illustrated in the figure below. unsaturated fatty acid OHHHHH HOC CCCC-c II I I HHHH trans-fatty acid |||| Molecular model of an unsaturated and trans-fatty acid Based on the structures shown above, H -C-C-C-C-C-H HHHHH TTTTT !!!!! HHHHH OHHHHH | ! ! ! ! ! HO-C-C-C-C-c-c IIII HHHH H HHHHH H HH III C-C-C-H I (a) Identify one property of all fatty acids. (b) Describe one of the functions of fatty acids in living systems. (c) Explain how the reorientation of the hydrogen atom as shown in the image allows the trans- fatty acids to be denser and solid at room temperature. Respond to each part in 3 to 5 complete sentences.
Some foods naturally have high levels of the free amino acid. For example, parmesan cheese (1689 mg), tomato (246 mg), scallop (159 mg), corn (106 g), and shrimp (43 mg). Wheat protein (gluten) is typically comprised of 30-35% of this amino acid. People with celiac disease cannot metabolize gluten, but have no trouble with foods high in the natural amino acid or MSG. Why is this?
According to health experts, saturated fatty acids, whichcome from animal fats, are a major factor contributing tocoronary heart disease. What distinguishes a saturated fattyacid from an unsaturated fatty acid, and to what does theterm saturated refer? Recently, trans unsaturated fatty acids, or trans fats, which raise total cholesterol levels in the body,have also been implicated in heart disease. How does the cisstereoisomer differ from the trans configuration, and whateffect does the cis configuration have on the structure of thefatty acid chain?
Why is hydrogenation so appealing that companies will continue to include hydrogenated oils in their products despite the social stigma that trans fats have acquired? If hydrogenation is supposed to produce saturated fats, then why do its byproducts include these undesirable trans unsaturated fats? Eliminating fat from the diet to decrease health risks, yet many nutrition arguments are being made about the importance and value of fats in a balanced diet. Discuss these points and how you feel fats can be incorporated into a healthy diet, if at all.
Why are saturated fatty acids considered as bad fat while monounsaturated fatty acids are considered as good fat?
Provide an explanation for the fact that most fatty acids are16 or 18 carbons long.
ẞ-Calendic acid is an omega-6, conjugated fatty acid that is the all-trans isomer of a-calendic acid. HOOC—CH,CH, CH, CH,CH, CH, Part: 0/2 Part 1 of 2 H C=C H C-H H-C H C=C H CH₂ -CH2-CH2-CH2-CH₂ When this fatty acid is partially hydrogenated with one equivalent of H₂ in the presence of a Pd catalyst, a mixture of constitutional isomers is formed. Modify the given structure to draw one of these possible products.
What is the metabolic basis for the observation that many adults cannot ingest large quantities of milk without developing gastric difficulties? What is the benefit of fiber in the diet? Why is it advantageous that polysaccharides can have branched chains? No animal can digest cellulose. Reconcile this statement with the fact that many animals are herbivores that depend heavily on cellulose as a food source.
Rank the following fatty acids from lowest melting temperature to highest melting temperature. A -0-c B-0-c -0-2 D-0-84 OB
The fructose in honey is mainly in the β-D-pyranose form. This is oneof the sweetest carbohydrates known, about twice as sweet as glucose; the β-D-furanose form of fructose is much less sweet. The sweetness of honey gradually decreases at a high temperature. Also, high-fructose corn syrup (a commercial product in which much of the glucose in corn syrup is converted to fructose) is used for sweetening cold but not hot drinks. What chemical property of fructose could account for both these observations?
The diversity of functional groups on sugars that can form glycosidic bonds greatly increases the information content of glycans relative to oligopeptides. Consider three amino acids, A, B, and C. How many tripeptides can be formed from one molecule of each amino acid? Now consider three sugars- glucose, glucuronic acid, and N-acetylglucosamine. Use shorthand (eg., Glca(1 → 4)GICUAB(1 → 4)GICNAC) to represent 10 trisaccharides with the sequence Glc-GlcUA-GluNAc. Is your list exhaustive?
Why are polyunsaturated omega-3 fatty acids considered as good for our health? Explain such phenomena based on their chemical structure.

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