Which of the following biological roles is primarily associated with lecithin, a low molecular weight organic compound found in cell membranes?
Energy storage
Maintaining cell membrane structure
Catalyzing enzymatic reactions
Genetic information storage
Related Questions
Which of the following is NOT a characteristic of essential fatty acids?
They are polyunsaturated fatty acids.
They are necessary for proper cell function.
They include linoleic acid and linolenic acid.
They can be synthesized by the human body.
Which lipid acts as a thermal insulator in animals?
Phospholipids
Waxes
Subcutaneous fat
Cholesterol
Fatty acids with no double bonds are called:
Unsaturated
Polyunsaturated
Saturated
Hydrogenated
A lipid molecule composed of glycerol, two fatty acids, and a phosphate group is classified as a:
Triglyceride
Steroid
Phospholipid
Wax
What is the primary function of waxes in plants?
Energy storage
Structural support
Prevent water loss
Cellular communication
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
Which of the following is NOT a lipid?
Cholesterol
Triglyceride
Glycogen
Phospholipid
Which lipid is a major component of cell membranes?
Triglycerides
Cholesterol
Waxes
Phospholipids
A triglyceride is formed from glycerol and:
One fatty acid
Two fatty acids
Three fatty acids
Four fatty acids
Which of the following is a derived lipid?
Triglycerides
Waxes
Steroid hormones
Phospholipids
