Which of the following is NOT built from fatty acids?
Correct answer: B. Steroid
- A. Triglyceride
- B. Steroid
- C. Phospholipid
- D. Wax
Explanation
Steroids such as cholesterol and testosterone are built from four fused carbon rings and contain no fatty acid chains. Triglycerides, phospholipids and waxes all contain fatty acids esterified to an alcohol, which is why they but not steroids are called saponifiable lipids.
Report an error
The more specific you are, the faster it gets fixed. A source beats an opinion.
Prefer email? support@testustad.com
About Classification of Biological Molecules
Biological molecules are classified as carbohydrates, lipids, proteins and nucleic acids, with water, minerals and vitamins also supporting cellular processes. The key distinctions involve their monomers, chemical bonds, structures and functions, including glucose and starch, fatty acids and triglycerides, amino acids and polypeptides, and nucleotides in DNA and RNA.
Practise Biological Molecules
1,790 free Biological Molecules MCQs from Biology, each with the correct answer and an explanation. Unlimited attempts, no account needed.
Discussion
Stuck on an option, or know a faster way to get there? Ask or explain it here.
No comments yet. Be the first to explain this one.
Exams that ask Biology questions like this
Biology is on 8 papers prepared for on TestUstad, and all of them draw the same bank, so this question is worth knowing for every one of them.
More Classification of Biological Molecules questions
In the phospholipid bilayer of a membrane, the fatty acid tails point inwards because they
Waxes are biologically important to plants and insects because they
Sickle cell anaemia results from the substitution of a single amino acid in haemoglobin. This fact demonstrates that
Ribosomal RNA is synthesised in the
The anticodon, which pairs with a codon during translation, is found on
Unlike DNA, a molecule of RNA contains