Question

one way the types of lipids differ is their chemical structures. the mode structure of a fat. fats are also known as triglycerides. triglycerides st body. select the true statements. triglycerides have mostly carbon and hydrogen atoms. fats contain nitrogen atoms. triglycerides have carbon atoms arranged in rings.

Explanation:

To determine the true statements about triglycerides (fats), we analyze each option:

1. "Triglycerides have mostly carbon and hydrogen atoms."

Looking at the structure of stearin (a triglyceride), the molecule is dominated by carbon (C) and hydrogen (H) atoms (with a few oxygen atoms). So this statement is true.

2. "Fats contain nitrogen atoms."

The structure of stearin (and typical triglycerides) shows only carbon, hydrogen, and oxygen atoms—no nitrogen. So this statement is false.

3. "Triglycerides have carbon atoms arranged in rings."

The structure of stearin shows carbon atoms in long, straight chains (not rings). Ring - structured carbon is typical of molecules like benzene or steroids, not triglycerides. So this statement is false.

Answer:

The only true statement is: "Triglycerides have mostly carbon and hydrogen atoms." (The other two statements are false.)