MCQs

Lipids contain more C-H bonds, producing more ATP during oxidation.

Phospholipids contain additional phosphate-containing head groups compared to triglycerides.

Their bilayer regulates movement of substances across membranes.

All three fatty acids attached to glycerol are the same in simple triglycerides.

Fatty acid chains repel water and face inward within the membrane.

Esterification releases one water molecule per ester bond formed.

Triglycerides lack phosphate groups and function mainly in energy storage.

Double bonds prevent close packing, lowering the melting point.

Glycerol is a three-carbon alcohol forming the backbone of triglycerides.

Esterification is a condensation reaction because water is removed.

Neutral fats are uncharged due to the absence of phosphate groups.

The polar head interacts with water inside and outside the cell.

Saturated fatty acids lack carbon-carbon double bonds.

Bile salts break large fat droplets into smaller droplets, increasing surface area for lipase.

Amphipathic molecules contain both hydrophilic and hydrophobic regions, allowing bilayer formation.

One hydroxyl group of glycerol is linked to a phosphate group, while the other two are linked to fatty acids.

Each triglyceride contains three ester linkages joining glycerol to fatty acids.

Triglycerides serve as the principal storage form of energy in adipose tissue.

The oxidizing environment of the endoplasmic reticulum promotes the formation of disulfide bonds in secreted and membrane proteins.