Homework Answers
Let us expand the long chains in the first compound (a).
CH2-O-CO-(CH2)14-CH3 this long chain of acid is saturated.
CH-O-CO-(CH2)7-CH=CH-(CH2)7-CH3 Contains one double bond, hence an unsaturated acid.
CH2-O-CO-(CH2)7-CH=CH-CH2-CH=CH-(CH2)4-CH3 Contains two double bonds hence unsaturated acid.
Compound (b)
CH2-O-CO-(CH2)7-CH=CH-(CH2)7-CH3 contains a double bond, hence unsaturated acid
CH-O-CO-(CH2)16-CH3 Saturated acid
CH2-O-CO-(CH2)7-CH=CH-(CH2)7-CH3 contains a double bond, hence unsaturated acid.
The unsaturated acids are likely to be in trans forms, where the bulky alkyl groups are far apart. If they are cis forms, the bulky alkyl groups will come closer, which causes the repulsion making this isomer less stable.
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Olive Oil Olive oil contains triglycerides such as those shown in Figure P20.3. a. Which of...
Which modifications of fatty acids will best keep triglycerides solid at warmer temperatures? a. creating cis...
Which modifications of fatty acids will best keep triglycerides solid at warmer temperatures? a. creating cis double bonds to the fatty acids b. adding hydrogens to the fatty acids c. creating trans double bonds to the fatty acids d. adding hydrogens and trans double bonds to the fatty acids e. adding cis double bonds and trans double bonds to the fatty acids
Tor F 1. With the exception of steroids, all lipids contain at least one fatty acid. 2. Some lipids contain monosaccharides as part of their structure. 3. Some lipids contain an amino acid as part of...
Tor F 1. With the exception of steroids, all lipids contain at least one fatty acid. 2. Some lipids contain monosaccharides as part of their structure. 3. Some lipids contain an amino acid as part of their structure. 4. Glycerophospholipids contain a phosphate portion in their structure. 5. All lipids have a molecule of glycerin as their backbone. 6. Polyunsaturated fatty acids have more than one C-C double bond in their "backbone." 7. Fatty acids are soluble in water. 8....
Which of the following statements are true? Which of the following statements are true? You can...
Which of the following statements are true?
Which of the following statements are true? You can select more than one f appropriate Triglycerides are composed of fatty add residues and glycerol Triglycerides are carboxylic acids. Fats that contain more saturated fatty acid residues than unsaturated fatty acid residues are more likely to be solid at room temperature Unsaturated fats are more likely than saturated fats to be liquid at room temperature. Saturated fats have lower melting points than do unsaturated...
Which of the statements are true? Fats that contain more unsaturated fatty acid residues than saturated...
Which of the statements are true? Fats that contain more unsaturated fatty acid residues than saturated fatty acid residues are more likely to be liquid at room temperature. Tracleucerols (triglycerides) always contain three identical fatty acids. Unsaturated fats have higher melting points than saturated fats. Triacylglycerols (triglycerides) are composed of fatty acid residues and glycerol. Unsaturated fats are more likely than saturated fats to be liquid at room temperature.
which contains a greater proportion of saturated fatty acids a) shortening b) vegetable oil
which contains a greater proportion of saturated fatty acids a) shortening b) vegetable oil
1.Fats and oil they both are triglycerides. Why fat is solid, and oil is liquid? b....
1.Fats and oil they both are triglycerides. Why fat is solid, and oil is liquid? b. What is fatty acid? Give the definition of a fatty acid. c.What are essential fatty acids? Name them. Explain why they are called essential?
blank one options: (solid, liquid,gas) blank 2 options: (saturated, unsaturated) blank 3 options: (enhanced, inhibited) blank...
blank one options: (solid, liquid,gas)
blank 2 options: (saturated, unsaturated)
blank 3 options: (enhanced, inhibited)
blank 4 options: (higher,lower)
Olive oil is a Choose... so it contains mostly Choose... - fatty acids. These fatty acids have Choose... intermolecular forces and choose... - melting points.
4) Length of a Fatty Acid: The carbon-carbon bond distance for single-bonded carbons such as those...
4) Length of a Fatty Acid: The carbon-carbon bond distance for
single-bonded carbons such as those in a saturated fatty acyl chain
is about 1.5 A (angstrom = 10-10 m = 0.1 ?m).
a) Estimate the length of a single molecule of palmitate in its
fully extended form. If two molecules of palmitate were placed end
to end, how would their total length compare with the thickness of
the lipid bilayer in a biological membrane? (The thickness of a
lipid...
C. Bromine Test for Unsaturation 2. Saturated/Unsaturated 1. Color fades rapidly/persists Fatty acids Stearic acid Oleic...
C. Bromine Test for Unsaturation 2. Saturated/Unsaturated 1. Color fades rapidly/persists Fatty acids Stearic acid Oleic acid Triacylglycerols Safflower oil Olive oil Questions and Problems Q3 a. Draw the condensed structural formulas of stearic acid and oleic acid. Stearic acid Oleic acid b. From the results of Part C, which is more unsaturated: oleic acid or stearic a Explain your reason. From the results of Part C, were safflower oil and olive oil saturated or un rated? Explain your reason.
29. Excess carbohydrate will turn into
29. Excess carbohydrate will turn into a. glycogen and/or be converted into fatty acids and stored as adipose tissue b. glucose and be burned during exercise c. glycogen and be depleted through elimination d. adipose tissue 30. When blood sugar is low, the pancreas releases to help stabilize blood sugar levels. a. insulin b. amylase c. lipase d. glucagon 31. Glucagon tells the _______ to convert glycogen to glucose to help mise blood sugar. a. kidneys b. pancreas c. liver d. stomach 32. Which of the following is NOT one of the three main categories of lipids? a....
Tor F 1. With the exception of steroids, all lipids contain at least one fatty acid. 2. Some lipids contain monosaccharides as part of their structure. 3. Some lipids contain an amino acid as part of their structure. 4. Glycerophospholipids contain a phosphate portion in their structure. 5. All lipids have a molecule of glycerin as their backbone. 6. Polyunsaturated fatty acids have more than one C-C double bond in their "backbone." 7. Fatty acids are soluble in water. 8....
Which of the following statements are true?
Which of the following statements are true? You can select more than one f appropriate Triglycerides are composed of fatty add residues and glycerol Triglycerides are carboxylic acids. Fats that contain more saturated fatty acid residues than unsaturated fatty acid residues are more likely to be solid at room temperature Unsaturated fats are more likely than saturated fats to be liquid at room temperature. Saturated fats have lower melting points than do unsaturated...
Which of the statements are true? Fats that contain more unsaturated fatty acid residues than saturated fatty acid residues are more likely to be liquid at room temperature. Tracleucerols (triglycerides) always contain three identical fatty acids. Unsaturated fats have higher melting points than saturated fats. Triacylglycerols (triglycerides) are composed of fatty acid residues and glycerol. Unsaturated fats are more likely than saturated fats to be liquid at room temperature.
blank one options: (solid, liquid,gas)
blank 2 options: (saturated, unsaturated)
blank 3 options: (enhanced, inhibited)
blank 4 options: (higher,lower)
Olive oil is a Choose... so it contains mostly Choose... - fatty acids. These fatty acids have Choose... intermolecular forces and choose... - melting points.
4) Length of a Fatty Acid: The carbon-carbon bond distance for
single-bonded carbons such as those in a saturated fatty acyl chain
is about 1.5 A (angstrom = 10-10 m = 0.1 ?m).
a) Estimate the length of a single molecule of palmitate in its
fully extended form. If two molecules of palmitate were placed end
to end, how would their total length compare with the thickness of
the lipid bilayer in a biological membrane? (The thickness of a
lipid...
C. Bromine Test for Unsaturation 2. Saturated/Unsaturated 1. Color fades rapidly/persists Fatty acids Stearic acid Oleic acid Triacylglycerols Safflower oil Olive oil Questions and Problems Q3 a. Draw the condensed structural formulas of stearic acid and oleic acid. Stearic acid Oleic acid b. From the results of Part C, which is more unsaturated: oleic acid or stearic a Explain your reason. From the results of Part C, were safflower oil and olive oil saturated or un rated? Explain your reason.
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