2.6.2 Saturated vs. Unsaturated Fats Flashcards
triglycerides
- lipids that are made up of three fatty acids bonded to a glycerol molecule. The characteristics of a triglyceride depend on the fatty acids that are attached
- Triglycerides with unsaturated fatty acids are more liquid at room temperature, while those with saturated fatty acids are more solid at room temperature.
saturated fatty acids
- Fatty acids that have as many hydrogen atoms as possible on the carbon chain
unsaturated fatty acids
- Fatty acids that have double bonds within the carbon chain (and therefore fewer hydrogen atoms)
Most animal fats
- lack double bonds
Saturated fats are saturated with
- hydrogen
What type of molecule (non-ring shaped) is indicated by the molecular formula, C9H15COOH?
- an unsaturated fatty acid
Saturated fats are solid at room temperature because
- the absence of carbon-carbon double bonds in the fatty acid tails allows the tails to fit more compactly together
Choose the correct answer for the following description: a molecule that contains double bonds between carbon atoms
a. saturated fatty acids
b. unsaturated fatty acids
c. neither saturated nor unsaturated fatty acids
d. both saturated nor unsaturated fatty acids
- b. unsaturated fatty acids
What makes a fatty acid an acid?
- the −COOH group
Which of the following statements regarding unsaturated fats is true?
a. Unsaturated fats contain carbon-carbon double bonds.
b. Unsaturated fats are liquid at room temperature.
c. Unsaturated fats have fewer hydrogens per carbon than a saturated fat with the same number of carbons.
d. all of the above
- d. all of the above