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Chapter 15 - Practice Quiz The goal of this assignment is to help you practice the material and prepare for the quizzes. Make sure you study all of the topics in the lecture notes and workbook pages. Study and practice using your lecture notes, homework, and workbook. Then do this practice assignment. You will have multiple attempts, and the highest score will be kept. There are NO makeup practice assignments, but your lowest four scores will be dropped. You can also submit these assignments late for full credit, if needed. 1 point Compare the lipids below: Some answers may not be used. Soap molecules No Answers Chosen Phospholipids No Answers Chosen Both soap and phospholipids No Answers Chosen Possible answers Have two fatty acid tails Amphipathic molecules Contain only one fatty acid tail Contain four fused rings Contain ester bonds Have charged heads Assemble into spheres with polar heads on the outside

          Chapter 15 - Practice Quiz
The goal of this assignment is to help you practice the material and prepare for the quizzes.
Make sure you study all of the topics in the lecture notes and workbook pages.
Study and practice using your lecture notes, homework, and workbook.
Then do this practice assignment. You will have multiple attempts, and the highest score will be kept. There are NO makeup practice assignments, but your lowest four
scores will be dropped. You can also submit these assignments late for full credit, if needed.
1 point
Compare the lipids below: Some answers may not be used.
Soap molecules
No Answers Chosen
Phospholipids
No Answers Chosen
Both soap and phospholipids
No Answers Chosen
Possible answers
Have two fatty acid tails
Amphipathic molecules
Contain only one fatty acid tail
Contain four fused rings
Contain ester bonds
Have charged heads
Assemble into spheres with polar heads on the outside

Show more…

Chapter 15 - Practice Quiz
The goal of this assignment is to help you practice the material and prepare for the quizzes.
Make sure you study all of the topics in the lecture notes and workbook pages.
Study and practice using your lecture notes, homework, and workbook.
Then do this practice assignment. You will have multiple attempts, and the highest score will be kept. There are NO makeup practice assignments, but your lowest four
scores will be dropped. You can also submit these assignments late for full credit, if needed.
1 point
Compare the lipids below: Some answers may not be used.
Soap molecules
No Answers Chosen
Phospholipids
No Answers Chosen
Both soap and phospholipids
No Answers Chosen
Possible answers
Have two fatty acid tails
Amphipathic molecules
Contain only one fatty acid tail
Contain four fused rings
Contain ester bonds
Have charged heads
Assemble into spheres with polar heads on the outside

Added by Leslie P.

Biology for AP Courses

Julianne Zedalis, John Eggebrecht

Instant Answer

Solved by Expert Madhur L

02/26/2023

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Step 1: Both soap and phospholipids are amphipathic molecules. Show more…

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Chapter 15 - Practice Quiz The goal of this assignment is to help you practice the material and prepare for the quizzes. Make sure you study all of the topics in the lecture notes and workbook pages. Study and practice using your lecture notes, homework, and workbook. Then do this practice assignment. You will have multiple attempts, and the highest score will be kept. There are NO makeup practice assignments, but your lowest four scores will be dropped. You can also submit these assignments late for full credit, if needed. 1 point Compare the lipids below. Some answers may not be used. Soap molecules Both soap and phospholipids Phospholipids Possible answers Have two fatty acid tails Amphipathic molecules Contain only one fatty acid tail Contain four fused rings Contain ester bonds Have charged heads Assemble into spheres with polar heads on the outside

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00:01 Hello students here series of questions are asked the first question is to define the lipid and they have asked to define in the sense where the definition is different from that of proteins nucleic acids or carbohydrates a lipid is said to be a molecule which is preferentially soluble in organic solvent rather than water which is a polar.

00:36 Solar solvent.

00:38 This definition is based on the solubility properties of lipid rather than the chemical nature of the subunits or the bond that links the subunits together as in the case for proteins, nucleic acids or carbohydrates.

01:02 In the next question they have asked to arrange the lipids in the order of decreasing polarity.

01:17 The given lipids are cholesterol, estradiol, fatty acid, phosphatidyl colon and triglycerides.

01:26 The correct order would be phosphatidyl, colon, fatty acid, triacile, glycerol, estradiol, estradiol, and finally cholesterol.

02:01 This is the order of lipids in the decreasing polarity.

02:07 In the next question, they've asked the structure which resemble the spingo myelin molecule more closely.

02:18 They have given two options and the correct answer for this would be a phosphatidyl pollen molecule molecule.

02:37 With one molecule of palmitate and one molecule of oleate acids fatty acid side chains.

03:07 The reason for this is the presence of an oleate will introduce a bend in one of the side chains that will closely resemble the shape of spingo myelin because the latter also has a double bond and hence a bend.

03:26 Therefore, the correct answer for c is option 2...

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