Which component of lecithin contributes to its amphipathic nature, allowing it to form bilayers in cell membranes?
Glycerol backbone only
Fatty acid chains only
Phosphate group only
Phosphate group and fatty acid chains
Related Questions
Which component of a fat molecule contributes to its hydrophobic nature?
Glycerol backbone
Long hydrocarbon chains of fatty acids
Ester linkages
Phosphate group
A typical fat molecules is made up of:
Three glycerol molecules and one fatty acid molecules
One glycerol and three fatty acid molecules
One glycerol and one fatty acid molecule
Three glycerol and three fatty acid molecules
Which of the following best describes the composition of a triglyceride?
One glucose molecule and three fatty acids.
One glycerol molecule and three fatty acids.
Three glycerol molecules and one fatty acid.
One glucose molecule and three amino acids.
Which property of lipids makes them suitable for long-term energy storage?
Solubility in water
High caloric density
Presence of nitrogen
Structural role in cell membranes
All of the following are examples of polymers EXCEPT:
Enzymes
DNA
Starch
Triglycerides
Which of the following correctly describes the solubility of lipids?
Soluble in water, insoluble in organic solvents
Insoluble in water, soluble in organic solvents like ether and chloroform
Soluble in both water and organic solvents
Insoluble in both water and organic solvents
Which lipid acts as a precursor for both prostaglandins and leukotrienes?
Linoleic acid
Palmitic acid
Arachidonic acid
Oleic acid
Which type of bond is characteristic of saturated fatty acids?
C=C
CC
C-O
C-C
A lipid molecule formed by the esterification of glycerol with three fatty acids is known as a:
Monoglyceride
Diglyceride
Triglyceride
Phospholipid
Given below is the chemical formula of
Palmitic acid
Stearic acid
Glycerol
Galactose
