Unit 2. Review Exercises

FOOD AND HEALTH

Answer the following questions:

1.  What nutrient brings more energy: a carbohydrate or a lipid? What nutrients do not provide energy?

2.    What are vitamins? How many classes do you know? Name foods rich in vitamins.

3.    Match the types of food with their role.

 Structural (meat, eggs)                                                     Produce energy

Energy (honey, sugar, oil)                                                 Make organs

Regulators (fruits and vegetables)                                     They make the body work properly.

4.    Currently the percentage of obesity is increasing dramatically in most countries. Name the causes of this increase. What steps must be taken to prevent obesity?

5.    Define food and nutrition. Name five examples of each one.

6.    What are organic nutrients? Name how many classes do you know it and explains its function.

7.    The wheel foods groups foods according to their function (color) and according to its importance for a balanced diet (size). Write how are they named and their function.

8. Are techniques of food preservation necessary? Why? What is the main purpose of these techniques?

9.    Complete the table:

Techniques of food preservation	How it works?	examples

10. What is a GMO? Name the advantages and disadvantages of GMOs.

11. What are the causes of food poisoning? How can it be avoided?

12. Explain what problems could have people whose diet is unbalanced, either by an excess or deficiency of nutrients.