Lipids contain double amount of energy as compared to the same amount of carbohydrates due to the presence of:
Correct answer: A. Higher proportion of C-H
- A. Higher proportion of C-H
- B. Higher proportion of C-O
- C. Higher proportion of Oxygen
- D. Low proportion of C-H bonds
Explanation
C-H bond is a stronger bond than the C-O bond, and since lipids contain a much higher proportion of C-H bonds than carbohydrates (because lipids contain much less oxygen per mole than carbohydrates), lipids contain double the amount of energy than carbohydrates. The remaining three options (B,C,D) are incorrect as they explain the traits of lipids in reverse.
This question appeared on the UHS MDCAT 2019 paper, which you can sit online with every answer explained.
Report an error
The more specific you are, the faster it gets fixed. A source beats an opinion.
Prefer email? [email protected]
About Lipids
Lipids include fats, oils, waxes, phospholipids and steroids, which are largely insoluble in water and soluble in organic solvents. Coverage includes glycerol and fatty acids, ester bond formation, saturated and unsaturated fats, triglyceride functions, and phospholipids in cell membranes.
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 Lipids questions
Which of the following is Unsaturated "Fatty Acid"?
Which lipid is hydrophilic and soluble?
Waterproof surfaces like cuticle of leaf and protective covering of an insect's body are
Butyric acid is a _ carbon fatty acid.
When glycerol reacts with fatty acid, which type of chemical bond will form?
The hydrophilic end of the phospholipid molecule is polar because of the presence of: