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 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
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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