Q: About Fatty acids melting point


 

Which fatty acid has the lower melting temperature?

 

a)      18:1D9

b)      18:2D9,12

c)      18:0

d)      18:1D11

e)      18:3D9,12,15

 

 

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Q: About dietary lipids


 

Lipid Question No. 12

 

Which of the following statements concerning dietary lipids is correct?

 

a)     Corn oil and soybean oil are examples of fats rich in saturated fatty acids

 

b)     Triacylglycerols obtained from plants generally contain less unsaturated fatty acids than those from animals

 

c)      Olive oil is rich in saturated fats

 

d)     Unsaturated fatty acids in our body are usually trans.

 

e)     Fish triacylglycerols are richer in unsaturated fatty acids than triacylglycerols from other animals.

 

Questions about Lipid structure and functions


 

Choose the best answer:

 

Lipid Question  L-02

 

The following compounds are phospholipids:

 

a)     lecithins and sphingomyelin

b)     diacylglycerols and cephalins

c)      plasmalogens and cerebrosides

d)     glycerol and gangliosides

e)     cholesterol and prostaglandins

 

      Answer

 

Lipid Question L-03

 

According to the chemical and biological classifications of fatty acids, we can classify palmitic acid as:

 

a)     monounsaturated and essential

b)     monounsaturated and non essential

c)      polyunsaturated and essential

d)     polyunsaturated and non essential

e)     saturated and essential

f)       saturated and non essential

 

     Answer

 

 

Lipid Question L-04

 

Different compounds included in this classificatory group of lipids, can act as pulmonary surfactant, component of membranes and precursors of second messengers. This is the group of:

 

a)     steroids

b)     glycosphingolipids

c)      triacylglycerols

d)     fatty acids

e)     phosphoglycerides

 

Answer

 

Lipid Question L-05

 

For historical reasons, it is yet called a vitamin, but it is really a steroid hormone that is synthesized in our body from cholesterol:

 

a)     Vitamin A

b)     Vitamin D

c)      Vitamin E

d)     Vitamin F

e)     Vitamin K

 

Respiratory Distress Syndrome (L-01)


A premature baby, shortly after birth, presents with rapid breathing, intercostal retractions, and grunting sounds while breathing. A blood gas analysis reveals low oxygen and acidosis. A diagnosis of Respiratory Distress Syndrome is quickly made. This syndrome is seen in newborns with immature lungs whose pneumocytes do not synthesize enough:

a) phosphatidyl choline

b) phosphatidyl inositol

c) sphingosin

d) sphingomyelin

e) palmitoyl CoA

 f) palmitate

 

Answer