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Structure, properties, digestion and absorption of lipids test

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LESSON 21 & 22

Question 1 of 12

1

Which is the name for lipids that in contact with NaOH form a soap?

Select one of the following:

  • Complex lipids

  • Simple lipids

  • Saponifiable lipids

  • Acylglycerates

  • Waxes

Explanation

Question 2 of 12

1

Saturated fatty acids can have one or more double bonds

Select one of the following:

  • True
  • False

Explanation

Question 3 of 12

1

18:3 (Δ9,12,15) is nomenclature abbreviated for which fatty acid?

Select one of the following:

  • Linoleic

  • α-linolenic

  • Arachidonic

  • Omega-6

  • Any of these

Explanation

Question 4 of 12

1

If we have a molecule of glycerol with two fatty acids and one phosphate group we are talking about...?

Select one of the following:

  • Acyglycerates

  • Waxes

  • Glycerophospholipids

  • Sphingophospholipids

  • Glycerolglycolipids

Explanation

Question 5 of 12

1

Which of these is involved in inflammation and immune response?

Select one of the following:

  • Icosanoids

  • Glycolipids

  • Phospholipids

  • Isoprenoids

  • Waxes

Explanation

Question 6 of 12

1

Vitamine E which is an antioxidant that belongs to which of these groups?

Select one of the following:

  • Terpenoids

  • Carotenoids

  • Esteroids

  • Leukotrienes

  • Thromboxanes

Explanation

Question 7 of 12

1

Carotenoids are big molecules that are in general symmetric with conjugated double bonds

Select one of the following:

  • True
  • False

Explanation

Question 8 of 12

1

Which of these statements about cholesterol is not true?

Select one of the following:

  • Cholesterol is forming part of the membranes of animal cells

  • Lettuce, tomato and bread has not cholesterol

  • Cholesterol is obtained by the diet but mainly is obtained by synthesis in liver

  • Bad cholesterol and good cholesterol are the same molecule

  • Cholesterol is a solid that need to be transported in plasma by etherocytes

Explanation

Question 9 of 12

1

Vitamines B, C, D, E and K are all soluble in water

Select one of the following:

  • True
  • False

Explanation

Question 10 of 12

1

Which of these vitamins is involved in calcium balance?

Select one of the following:

  • Vitamine A

  • Vitamine B

  • Vitamine C

  • Vitamine D

  • Vitamine K

Explanation

Question 11 of 12

1

Which of these statements is not true?

Select one of the following:

  • Lipases transform tryacylglycerides into 2-monoacylglycerides and 2 fatty acids

  • Phospholipase A2 transform phosphoglycerides into 1-lisophosphoglycerides

  • Cholesterol esterase eliminate one fatty acid from cholesterol forming cholesterol

  • This enzymes transform this molecules into more polar molecules

  • Lipids are very insoluble and need to reach the membrane of erythrocytes

Explanation

Question 12 of 12

1

Fill the blank spaces to complete the text.

The stomach is going to secrete that induce contractions in the stomach and also the secretion of . With this movement, the drop of fat will be transformed into drops of fat. All of this is possible because bile salts act as agents. After all this process, all the lipids from the diet have been transformed into fatty acids.

Explanation

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