Question 14When quantifying the amount of lipid in milk, an aliquot of milk is mixed with organic solvent and spun in a centrifuge. Three layers are observed in the tube after centrifugation. In which layer would you expect to contain the lipid component of milk?Aqueous layer at the topWhite middle layerBottom solvent layerQuestion 17Which of the following are true of cardiolipin? Tick all correct answers.It has four hydrocarbon tails.It has three glycerol molecules present in the structure.It has two hydrocarbon tails.It is a phosphoglycerolipid.It has only one glycerol molecules present in the structure. Question 19Which of the following molecules are common in the head groups of phospholipids? Tick all correct answers.lysinecholineserineglucoseethanolaminegalactose

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Answered: Question 14 When quantifying the…

Biochemistry

9th Edition

ISBN:9781319114671

Author:Lubert Stryer, Jeremy M. Berg, John L. Tymoczko, Gregory J. Gatto Jr.

Publisher:Lubert Stryer, Jeremy M. Berg, John L. Tymoczko, Gregory J. Gatto Jr.

Chapter1: Biochemistry: An Evolving Science

Section: Chapter Questions

Problem 1P

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Question 14

When quantifying the amount of lipid in milk, an aliquot of milk is mixed with organic solvent and spun in a centrifuge. Three layers are observed in the tube after centrifugation. In which layer would you expect to contain the lipid component of milk?

Aqueous layer at the top
White middle layer
Bottom solvent layer

Question 17

Which of the following are true of cardiolipin? Tick all correct answers.

It has four hydrocarbon tails.
It has three glycerol molecules present in the structure.
It has two hydrocarbon tails.
It is a phosphoglycerolipid.
It has only one glycerol molecules present in the structure.

Question 19

Which of the following molecules are common in the head groups of phospholipids? Tick all correct answers.

lysine
choline
serine
glucose
ethanolamine
galactose

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