Question

select the true statements. triglycerides from food are broken down in the stomach. triglycerides travel across cell membranes. triglycerides are stored until they are needed for energy. in cells, fatty acid and glycerol molecules are combined to make triglycerides.

Explanation:

• Triglycerides from food are broken down in the small intestine, not the stomach. Lipase enzymes in the small intestine break them down.
• Triglycerides are large, non - polar molecules. They are not directly transported across cell membranes. Instead, they are broken down into smaller components (fatty acids and glycerol) which can cross the membrane, and then re - synthesized into triglycerides inside the cell.
• Triglycerides are an energy storage molecule. They are stored in adipose tissue (fat cells) until the body needs energy, at which point they are broken down.
• In cells (such as adipose cells), fatty acid and glycerol molecules are combined (through esterification reactions) to make triglycerides for storage.

Answer:

• Triglycerides are stored until they are needed for energy.
• In cells, fatty acid and glycerol molecules are combined to make triglycerides.