glycerophospholipids have a head ans two tails structure give the chemical identity of the head and of each ot the two tails
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glycerophospholipids have a head ans two tails structure give the chemical identity of the head and of each ot the two tails
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- Saturated fatty acids are so named because they are saturated with (a) hydrogen (b) water (c) hydroxyl groups (d) glycerol (e) double bondsAt pH 7, tryptophan crosses a lipid bilayer at about onethousandththe rate of indole, a closely related compound: Suggest an explanation for this observation.Glycolipids are nonionic lipids that can orient themselves unto bilayers as phospholipids do. They accomplish this feat without an ionic head group like that of the phospholipids. Suggest a reason why this is possible.
- Complete hydrolysis of a glycerophospholipid yields glycerol, two fatty acids (16:1(Δ9) and 16:0), phosphoric acid, and serine in the molar ratio 1:1:1:1:1. Name this lipid and draw its structure.In monounsaturated fatty acids, the presence of a double bond is usually found at the position between carbons ______________. 11 and 10. 8 and 9. 3 and 16. 9 and 10.A protein has an asp glu/arg lys ratio of 3. Explain how would the overall charge on this molecule likely be at pH 7 be negative?
- Explain why phospholipids (i.e. phosphoglycerides and sphingomyelins) are found in cell membrane but not triglycerides (triacylglycerols)The human body uses the branched polymer glycogen for short term storage of glucose in the liver. It is broken down by the stepwise removal of the terminal glucose monomer. Explain why it is an advantage for glycogen to have a branch chain structure rather than a linear structure. (A pargraph would be great)Amino acids are the building blocks for proteins in the cell. The structures of the amino acids glutamate (or glutamic acid), glycine, and leucine are provided below in the same order from left to right. Map any chiral centers with a 1.
- A fatty acid is designated as having the structure 18:2 ( 9,12). Draw the structure of the fatty acid.Draw the dipeptide that results when a peptide bond is formed between the two glycine molecules shown here. Draw it as it would occur at the pH of most body fluids. Include all hydrogen atoms.Glycolipids are nonionic lipids that can orient themselvesinto bilayers as phospholipids do. They accomplish this featalthough they lack an ionic group like that of the phospholipids. Suggest a reason why this is possible.