Lipids and their Biological Significance Quiz

Lipids serve as a key energy storage molecule.

Phospholipids form the basic structure of cell membranes.

Unsaturated fatty acids have one or more double bonds in their carbon chain.

Triglycerides function as a rapid energy source.

Phospholipids are crucial for the myelin sheath, providing insulation to nerve cells.

Steroids contain a four-ring structure and include hormones like testosterone and estrogen.

Vitamin A is crucial for maintaining vision.

Cholesterol serves as a precursor for hormone synthesis.

Cholesterol is a precursor for bile acids, vitamin D, and steroid hormones.

LDL transports cholesterol to cells, while HDL removes excess cholesterol from the bloodstream.

Lipids do not typically participate in enzyme catalysis.

Waxes are found in the protective coating of leaves, fruits, and animal fur.

Lipoproteins facilitate the transport of lipids in the bloodstream.

Lipase breaks down triglycerides into fatty acids and glycerol.

LDL is considered 'bad' cholesterol due to its role in promoting atherosclerosis.

HMG-CoA reductase is involved in the synthesis of cholesterol in the liver.

Acyl-CoA dehydrogenase is involved in the breakdown of fatty acids through β-oxidation in the mitochondria.