Metabolism Of Lipids Flashcards
What is the caloric yield of triacylglycerols (TG) compared to carbohydrates and proteins?
Triacylglycerols yield 9 Cal/g, while carbohydrates and proteins yield 4 Cal/g.
What percentage of body weight do lipids constitute in humans?
Lipids constitute about 15-20% of body weight in humans.
What is the most abundant type of lipid in the body?
Triacylglycerols comprise 85-90% of body lipids.
Where are most triacylglycerols stored in the body?
Most triacylglycerols are stored in adipose tissue.
What is the primary function of triacylglycerols in the body?
They serve as the energy reserve of the body.
Why do triacylglycerols yield more energy than glycogen?
One gram of fat yields nearly six times as much energy as one gram of hydrated glycogen.
What is the nature of triacylglycerols?
Triacylglycerols are non-polar and hydrophobic.
What is the caloric storage capacity of a healthy adult weighing 70 kg in terms of fat?
A healthy adult has a fuel reserve of about 100,000 Cals stored as fat.
What would happen if the same amount of energy were stored as glycogen instead of fat?
The weight of the person would increase by at least 55 kg.
Fill in the blank: Triacylglycerols are also known as _______.
neutral fat or depot fat.
True or False: Glycogen is stored in the body in a pure form without water association.
False.
What role does fat play beyond energy storage?
Fat acts as an insulating material for maintaining body temperature.
What is the primary reason for fat being chosen as a fuel reserve during evolution?
Fat provides a more efficient energy storage method than glycogen.
