Question

Select the true statements.
There is only one type of lipid molecule.
Eggs, cheese, and olive oil are dietary sources of lipids.
Steroids form protective barriers on plants.
Phospholipids are a type of lipid.

Answer 1

True statements:
- Eggs, cheese, and olive oil are dietary sources of lipids. (They contain fats/triglycerides and other lipid types.)
- Phospholipids are a type of lipid. (They are lipids that form cell membranes.)

False statements:
- There is only one type of lipid. (There are many classes: triglycerides, phospholipids, steroids, waxes, etc.)
- Steroids form protective barriers on plants. (Protective plant barriers are mainly waxes and cutin; steroids are hormones/structural lipids, not the primary barrier.)