Chapter 22. 22·14–22·19 What we eat profoundly affects our health.

Show What You Know - Self Quiz

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You must read each slide, and complete any questions on the slide, in sequence.

Instructions

Check your understanding of concepts from 22·14–22·19 What we eat profoundly affects our health by answering the following questions.

1.

1. Which is the most important concept in achieving a healthy diet?

eliminating fat from your diet

balance

eating all the food that you prepare for yourself

eating three times a day

exercise

Correct. (See section 22·14 What constitutes a healthy diet?)

Incorrect. (See section 22·14 What constitutes a healthy diet?)

2.

2. Which of the following statements about diet and obesity is true?

Obesity can be defined as having a BMI greater than 30.

The risk of heart disease, stroke, and diabetes decrease with increasing body weight.

Humans always choose high calorie foods over nutritious ones.

Fat cells continue to increase in number after childhood and reach their greatest number in old age.

Fat cells increase in size when you lose weight as well as increase in number.

Correct. (See section 22·16 Obesity can result from too much of a good thing.)

Incorrect. (See section 22·16 Obesity can result from too much of a good thing.)

3.

3. Why do so many weight-loss diets fail to work?

They focus on weight reduction, not body fat reduction.

They require exhaustive exercise as part of the regimen.

They may reduce body weight too slowly so that dieters “give up”.

They usually involve purchasing expensive “weight-loss foods”.

They increase muscle mass, which only increases body weight.

Correct. (See section 22·17 Weight-loss diets are a losing proposition.)

Incorrect. (See section 22·17 Weight-loss diets are a losing proposition.)

4.

4. Why can’t insulin be eaten in the diet to treat diabetes?

Insulin is fat-soluble, so a diabetic would have to increase their fat intake substantially to get enough insulin.

Too much dietary insulin causes negative health effects.

Since insulin is a protein, it will be digested and broken down in the digestive tract.

Insulin is a very expensive human-made hormone; it would be cost-prohibitive to ingest enough insulin to treat diabetes.

Insulin causes gastrointestinal distress and gas if eaten.

Correct. (See section 22·18 Diabetes is caused by the body’s inability to regulate blood sugar effectively.)

Incorrect. (See section 22·18 Diabetes is caused by the body’s inability to regulate blood sugar effectively.)

5.

5. The spices that many humans use to season their food:

can only be grown in tropical regions of the world.

are generally compounds produced by plants to reduce their risk of being eaten.

are the chief cause of ulcers.

are actually dead microorganisms.

consist primarily of amino acids.

Correct. (See section 22·19 Food and infection: spicy foods may act as natural antibiotics.)

Incorrect. (See section 22·19 Food and infection: spicy foods may act as natural antibiotics.)

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