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Lecithin is a...

Lecithin is a

A

sterol

B

glycolipid

C

phospholipid

D

sphingolipid.

Text Solution

Verified by Experts

The correct Answer is:
C
Phospholipids are triglyceride lipids, in which one fatty acid is replaced by phosphoric acid residue of the linked to additional nitrogenous groups, e.g., choline in lecith in.
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Following are the statements with reference to lipids. (a)Lipids having only single bond is called unsaturated fatty acids (b)Lecithin is a phospholipid (c)Trihydroxy propane is glycerol (d)Palmitic acid has 20 carbon atoms including carboxyl carbon (e) Arachinoid acid has 16 carbon atoms. choose the correct statemment from the below options

Lipids-Simple Lipids|Simple Lipid or Neutral Fats|Lipids - Compound & Conjugated|Lecithin or Phosphatidyl choline|Derived Lipids

Knowledge Check

  • Assertion : Lecithin is important in membranes . Reason : It has amphipathic nature .

    A
    If both assertion and Reason are true and the Reason is the correct explanation of the assertion .
    B
    If both Assertion and Reason ate true , but the reason is not the correct explanation of the assertion .
    C
    If Assertion is true , but Reason is false
    D
    if both Assertion and Reason are false.

  • The difference between lectin and lecithin is :

    A
    Lectin is a secondary metabolite while lecithin is a phospholipid.
    B
    Lectin is a fat binding protein while lecithin is a phospholipid.
    C
    Lectin is a phospholipid with choline while lecithin is a carbohydrate - binding protein.
    D
    Lectin is a phospholipid while lecithin is a secondary metabolite.

  • Read the following statements about respiratory system of humans : I. Type II alveoli help in secretion of a chemical surfactant called lecithin , which decreases the surface tension around alveoli. II. The diffusion membrane for exchange of gases is made up of three major cellular layers. III. Binding of oxygen with hemoglobin is primarily related to the partial pressure of O_2 . IV. Every 100 ml of oxygenated blood can deliver around 5 ml CO_2 to the tissues under normal physiological conditions. How many statement is /are correct from the above ?

    A
    Two
    B
    Three
    C
    Four
    D
    One

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    Which of the following is not a components of Lecithin?

    What is the chemical nature of lecithin ?

    What is the chemical nature of lecithin ?

    Which of the following is the diagrammatic representation of phospholipid lecithin ?

    [A] : In the embryos liver is haemopoietic, it produces red blood corpuscles (R803). The breakdown products of haemoglobin of de- stroyed RBCs are converted into bile pigment to be eliminated with faeces. [R]: The main function of liver is secretion of bile, which has bile pigments, cholesterol and lecithin.

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