Assertion : Lecithin is important in membranes . Reason : It has amphipathic nature .
Which is not a lipid ? (a) Lecithin (b) β- keratin (c) Sterol (d) wax
Select the incorrect statement. (a) Lipid are insoluble in water (b) Glycerol is trihydoxy propane (c) Lecithin is a glycoprotein (d) Adenosine is a nucleotide
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 ?
Lecithin consists of
Which is correctly identified along with its function (1) b- uracil, a component of DNA (2) a- lecithin, a component of cell membrane (3) b - adenine a nucleotide that makes up nucleic acid (4) a- triglyceride a major source of energy
