Which of the following would be classified as cephalins? (Select all that apply.) CH₂ 0- CH—O–C—(CH2),CH=CHCH,CH=CH(CH2) CH3 CH₂ -0- -0-CH₂CH₂-N(CH3)3 CH₂0- CH- -0-C-(CH₂)7CH-CH(CH₂)7CH3 CH₂ CH2O -P-O-CH₂CH₂-NH3 CH- CH₂ CH₂7 CH -(CH2) 16CH3 O 0 C -(CH2)14CH3 O -(CH₂) 14CH3 CH2O -C -(CH₂)9CH-CH(CH₂)5CH3 C O–CH,CHNH3 COO (CH2)14CH3 (CH₂)4CH-CH(CH2)8CH3 O …CH,CH—NH,

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**Phospholipid Molecular Structures**

In this image, we see the molecular structural formulas of various phospholipids. Each phospholipid structure is represented by a specific arrangement of carbon (C), hydrogen (H), oxygen (O), phosphorus (P), and nitrogen (N) atoms. The structures can be detailed as follows:

**First Phospholipid Structure:**
- The structure starts with a CH₂ group connected to an O atom.
- This is followed by a chain with configurations:
  - CH₂-O-(CH₂)₁₄CH₃
  - CH-O-(CH₂)₉CH=CH(CH₂)₅CH₃
- A phosphate group (P=O and P-O bonds) is linked, followed by:
  - CH₂CH-NH₃⁺
  - COO⁻

**Second Phospholipid Structure:**
- Similar initial part with a CH₂ group connected to an O atom.
- The structure continues with:
  - CH₂-O-(CH₂)₁₄CH₃
  - CH-O-(CH₂)₄CH=CH(CH₂)₈CH₃
- Includes the phosphate group again, followed by:
  - CH₂CH-NH₃⁺
  - COO⁻

**Third Phospholipid Structure:**
- Alternately structured with an O-CO group connected to:
  - CH₂-O-C-(CH₂)₇CH=CH(CH₂)₃CH₃
  - CH-O-C-(CH₂)₉CH=CH(CH₂)₅CH₃
- Contains the phosphate group:
  - CH₂CH-NH₃⁺
  - COO⁻

**Fourth Phospholipid Structure:**
- Initial structure similarly starts with a CH₂ group connected to an O atom.
- The chains in this structure are:
  - CH₂-O-(CH₂)₁₄CH₃
  - CH-O-(CH₂)₂₇CH=CHCH₂CH=CH(CH₂)₄CH₃
- It features a consistent phosphate group, ending with:
  - CH₂CH₂-N(CH₃)₃⁺

These detailed molecular formulas help in understanding the composition and structural differences among various phospholipids, which is critical for studies in biochemistry
Transcribed Image Text:**Phospholipid Molecular Structures** In this image, we see the molecular structural formulas of various phospholipids. Each phospholipid structure is represented by a specific arrangement of carbon (C), hydrogen (H), oxygen (O), phosphorus (P), and nitrogen (N) atoms. The structures can be detailed as follows: **First Phospholipid Structure:** - The structure starts with a CH₂ group connected to an O atom. - This is followed by a chain with configurations: - CH₂-O-(CH₂)₁₄CH₃ - CH-O-(CH₂)₉CH=CH(CH₂)₅CH₃ - A phosphate group (P=O and P-O bonds) is linked, followed by: - CH₂CH-NH₃⁺ - COO⁻ **Second Phospholipid Structure:** - Similar initial part with a CH₂ group connected to an O atom. - The structure continues with: - CH₂-O-(CH₂)₁₄CH₃ - CH-O-(CH₂)₄CH=CH(CH₂)₈CH₃ - Includes the phosphate group again, followed by: - CH₂CH-NH₃⁺ - COO⁻ **Third Phospholipid Structure:** - Alternately structured with an O-CO group connected to: - CH₂-O-C-(CH₂)₇CH=CH(CH₂)₃CH₃ - CH-O-C-(CH₂)₉CH=CH(CH₂)₅CH₃ - Contains the phosphate group: - CH₂CH-NH₃⁺ - COO⁻ **Fourth Phospholipid Structure:** - Initial structure similarly starts with a CH₂ group connected to an O atom. - The chains in this structure are: - CH₂-O-(CH₂)₁₄CH₃ - CH-O-(CH₂)₂₇CH=CHCH₂CH=CH(CH₂)₄CH₃ - It features a consistent phosphate group, ending with: - CH₂CH₂-N(CH₃)₃⁺ These detailed molecular formulas help in understanding the composition and structural differences among various phospholipids, which is critical for studies in biochemistry
### Question: 
Which of the following would be classified as cephalins? 
(Select all that apply.)

### Answer Options:

1. 
   - Structural Formula:
     - CH₂ -- O -- C(O) -- (CH₂)₁₆CH₃
     - CH₂ -- O -- C(O) -- (CH₂)₇CH=CHCH₂CH=CH(CH₂)₄CH₃
     - CH₂ -- O -- P(O³⁻) -- O -- CH₂CH₂ -- N⁺(CH₃)₃

2. 
   - Structural Formula:
     - CH₂ -- O -- C(O) -- (CH₂)₁₄CH₃
     - CH₂ -- O -- C(O) -- (CH₂)₇CH=CH(CH₂)₇CH₃
     - CH₂ -- O -- P(O) -- O -- CH₂CH₂ -- NH₃⁺

3. 
   - Structural Formula:
     - CH₂ -- O -- C(O) -- (CH₂)₁₄CH₃
     - CH₂ -- O -- C(O) -- (CH₂)₉CH=CH(CH₂)₅CH₃
     - CH₂ -- O -- P(O) -- O -- CH₂CH₂ -- NH₃⁺ - COO⁻

4. 
   - Structural Formula:
     - CH₂ -- O -- C(O) -- (CH₂)₁₄CH₃
     - CH₂ -- O -- C(O) -- (CH₂)₄CH=CH(CH₂)₂₈CH₃
     - CH₂ -- O -- P(O) -- O -- CH₂CH₂ -- NH₃⁺
Transcribed Image Text:### Question: Which of the following would be classified as cephalins? (Select all that apply.) ### Answer Options: 1. - Structural Formula: - CH₂ -- O -- C(O) -- (CH₂)₁₆CH₃ - CH₂ -- O -- C(O) -- (CH₂)₇CH=CHCH₂CH=CH(CH₂)₄CH₃ - CH₂ -- O -- P(O³⁻) -- O -- CH₂CH₂ -- N⁺(CH₃)₃ 2. - Structural Formula: - CH₂ -- O -- C(O) -- (CH₂)₁₄CH₃ - CH₂ -- O -- C(O) -- (CH₂)₇CH=CH(CH₂)₇CH₃ - CH₂ -- O -- P(O) -- O -- CH₂CH₂ -- NH₃⁺ 3. - Structural Formula: - CH₂ -- O -- C(O) -- (CH₂)₁₄CH₃ - CH₂ -- O -- C(O) -- (CH₂)₉CH=CH(CH₂)₅CH₃ - CH₂ -- O -- P(O) -- O -- CH₂CH₂ -- NH₃⁺ - COO⁻ 4. - Structural Formula: - CH₂ -- O -- C(O) -- (CH₂)₁₄CH₃ - CH₂ -- O -- C(O) -- (CH₂)₄CH=CH(CH₂)₂₈CH₃ - CH₂ -- O -- P(O) -- O -- CH₂CH₂ -- NH₃⁺
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