Exam 1: Why Does Nutrition Matter

At times, control subjects may experience an apparent effect of the study treatment even though they did not receive any treatment. This phenomenon is called

The main source of energy for cells under normal conditions is

A nutrient that is normally nonessential but becomes essential under certain conditions is called

Carbohydrates and proteins provide _____ calories per gram, while lipids provide _____ calories per gram.

In an intervention study, the control group consists of

Both organic and inorganic compounds contain carbon.

Life expectancy is the average number of years of life remaining for a person.

If a slice of bread contains 15 grams of carbohydrates, 3 grams of protein, and 1 gram of lipids, how many calories does it provide?

One of the main functions of lipids in the human body is

Vitamins can be converted directly into energy within cells.

The basic molecular structure of proteins differs from that of carbohydrates and lipids because, along with carbon, hydrogen, and oxygen, protein molecules also contain

As a society develops into a more industrialized economy, the accompanying shift from under-nutrition to over-nutrition is referred to as the

Which of the following is true concerning trends in infant mortality rate and life expectancy in the United States over the past century?

If an investigator designs an intervention study with a control group, that group will receive a _____ instead of the study treatment.

Carbohydrates, proteins, vitamins, and minerals are classified as macronutrients.

Vitamins and minerals are classified as _____ because only small amounts are required each day.

If someone wants to know how many people have died in a certain population during a specific time period, he or she would ask about the

The gold standard study design for intervention studies is called

In a double-blind study the investigator knows whether a subject is in the treatment or control group.

"Where was the study published?" is one of the questions that can be helpful in determining if a nutrition claim is hearsay or has a scientific basis. What type of publication is likely to be the most reliable source of nutrition information?