Concept explainers
(a)
Interpretation:
The structure of phospholipid; cephalin formed from two molecules of palmitoleic acid needs to be drawn.
Concept Introduction:
Phospholipid is a type of lipid that contains a phosphorus atom. They are mainly found in the cell membrane of plants and animals. They are also called as phosphoacylglycerol as two fatty acids with phosphate group and alcoholic group are bonded to the glycerol molecule through ester linkage.
The phospholipid molecule has two ends; polar end and non-polar end. Two long hydrocarbon chains of fatty acids form the non-polar end of the molecule and are hydrophobic in nature, whereas the phosphate group is polar end and hydrophilic in nature. Due to this dual nature of phospholipid molecules, they form a lipid bilayer that can be effectively involved in the transfer of different hydrophobic and hydrophilic molecules across the cell membrane.
(b)
Interpretation:
The structure of phosphatidylcholine formed from two molecules of lauric acid needs to be drawn.
Concept Introduction:
Phospholipid is type of lipid that contains a phosphorus atom. They are mainly found in the cell membrane of plants and animals. They are also called as phosphoacylglycerol as two fatty acids with phosphate group and alcoholic group are bonded to the glycerol molecule through ester linkage.
The phospholipid molecule has two ends; polar end and non-polar end. Two long hydrocarbon chains of fatty acids form the non-polar end of the molecule and hydrophobic in nature whereas the phosphate group is polar end and hydrophilic in nature. Due to this dual nature of phospholipid molecules, they form a lipid bilayer that can effectively involves in transfer of different hydrophobic and hydrophilic molecules across the cell membrane.
(c)
Interpretation:
The structure of sphingomyelinformed from stearic acid and ethanolamine needs to be drawn.
Concept Introduction:
Phospholipid is type of lipid that contains a phosphorus atom. They are mainly found in the cell membrane of plants and animals. They are also called as phosphoacylglycerol as two fatty acids with phosphate group and alcoholic group are bonded to the glycerol molecule through ester linkage.
The phospholipid molecule has two ends; polar end and non-polar end. Two long hydrocarbon chains of fatty acids form the non-polar end of the molecule and hydrophobic in nature whereas the phosphate group is polar end and hydrophilic in nature. Due to this dual nature of phospholipid molecules, they form a lipid bilayer that can effectively involves in transfer of different hydrophobic and hydrophilic molecules across the cell membrane.
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Chapter 19 Solutions
CONNECT IA GENERAL ORGANIC&BIO CHEMISTRY
- Nonearrow_forwardNonearrow_forwardIn the solid state, oxalic acid occurs as a dihydrate with the formula H2C2O4 C+2H2O. Use this formula to calculate the formula weight of oxalic acid. Use the calculated formula weight and the number of moles (0.00504mol) of oxalic acid in each titrated unknown sample recorded in Table 6.4 to calculate the number of grams of pure oxalic acid dihydrate contained in each titrated unknown sample.arrow_forward
- 1. Consider a pair of elements with 2p and 4p valence orbitals (e.g., N and Se). Draw their (2p and 4p AO's) radial probability plots, and sketch their angular profiles. Then, consider these orbitals from the two atoms forming a homonuclear л-bond. Which element would have a stronger bond, and why? (4 points)arrow_forwardWrite the reaction and show the mechanism of the reaction. Include the mechanism for formation of the NO2+ 2. Explain, using resonance structures, why the meta isomer is formed. Draw possible resonance structures for ortho, meta and para.arrow_forwardNonearrow_forward
- 3. A molecular form of "dicarbon", C2, can be generated in gas phase. Its bond dissociation energy has been determined at 599 kJ/mol. Use molecular orbital theory to explain why energy of dissociation for C₂+ is 513 kJ/mol, and that for C2² is 818 kJ/mol. (10 points)arrow_forward9.73 g of lead(IV) chloride contains enough Cl- ions to make ____ g of magnesium chloride.arrow_forward6. a) C2's. Phosphorus pentafluoride PF5 belongs to D3h symmetry group. Draw the structure of the molecule, identify principal axis of rotation and perpendicular (4 points) b) assume that the principal axis of rotation is aligned with z axis, assign symmetry labels (such as a1, b2, etc.) to the following atomic orbitals of the P atom. (character table for this group is included in the Supplemental material). 3s 3pz (6 points) 3dz²arrow_forward
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