U1T3 – Lipids & Phospholipids

What elements are lipids made out of?

What subunits make up a single triglyceride?

What is the formula for glycerol?

What is the formula for the group at the end of a fatty acid where it bonds to the glycerol?

The 'tail' of a fatty acid can be a variable length molecule. But what type of molecule is the tail?

What word best describes the fatty acid 'tails'?

Which of these three molecules is a fatty acid?

Which of these two molecules is a saturated fatty acid?

What is the general formula for a saturated fatty acid?

Fats that contain unsaturated fatty acids (compared to saturated) are more likely to have:

Which of the following is not true about triglycerides?

What type of bond joins a fatty acid to a glycerol molecule?

What type of reaction is the formation of a triglyceride from its subunits?

Which of the above three molecules shows a correct bond between glycerol and a fatty acid?

What is the standard structure of a phospholipid?

Which of the following terms best describes the phosphate part of a phospholipid?

Triglycerides are good at storing energy. Which part of the molecule stores the most energy?

On the above diagram, what does structure '1' represent?

On the above diagram, what does structure '2' represent?

On the above diagram, what does structure '3' represent?

If this diagram represented the plasma membrane of an epithelial cell in a human small intestine. What solutions would be on side'a' and side 'b'?

Which best represents the hydrophobic area on this diagram?

Which biochemical test is used to identify lipids?

What substance is added to the sample at the start of a test for lipids?