ACTIVITY 10

Questionnaire

Activity 10

1. An ester is an organic compound that has the following structure:

2. esters can also be written as

3. The simplest ester is methyl methanoate, which has the following formula

4. Methyl ethanoate has the following formula:

5. Ethyl ethanoate has the following formula:

6. The esters most commonly found in nature are _________, which are ester of _______________ and ________________. Fat is the generic term used in biochemistry that generally refers to esters in which one or more fatty acids are joined to a molecule of _____________ (glycerin).

7. The most common fat molecule is formed when three _____________ are joined to a molecule of ____________ and receive the name _____________.

8. __________________ that are ____________ at room temperature are called fats.

9. Liquid triglycerides at room temperature are called __________.

10. Oils can be changed into fats artificially by _______________ to make _________ and _______________ fats.

11. All fats are insoluble in __________, having a density that is much lower (they float on water).

12. “_____________” is the common name for 1, 2, 3 – propanetriol. It is an _____________ with three hydroxyl groups.

13. The formula for glycerol is:

14. __________________ are organic molecules made up of a large hydrocarbon chain, with an even number of carbon atoms and a ______________group at one extreme of the chain.

15. Write the functions of fat

16. The human body cannot function correc

tly without __________. However, abusing the amount of fat consumption leads to ______________________ diseases such as ____________________.

17. All _____________ have a strong, sweet, fruit __________. The odors of pineapple, raspberry, pear, strawberry, banana, cherry, apple, and others come from _________.

18. Esterification of alcohols

Combine ethanoic acid with methanol to produce an ester. Write the name for each compound.

19. Combine ethyl ethanoato with sodium hydroxide to obtain an organic salt and an alcohol

20. Write 4 uses of esters