Question 1

Amino acids supplements,vitamins and minerals supplements,and herbal remedies are examples of what type of product?

Accepted Answer

Amino acids supplements, vitamins and minerals supplements, and herbal remedies fall under the category of natural health products.

Question 2

"Diets that include the consumption of large amounts of red and processed meats may increase the risk of colon cancer." What is being described?

Accepted Answer

The statement is referring to the consumption of excess nutrition from red and processed meats, which can increase the risk of colon cancer. This falls under the category of overnutrition. Options A, B, and D are not relevant to the described scenario.

Question 3

Which statement best describes the concept of eating a variety of foods?

Accepted Answer

Eating a variety of foods means choosing different options from within each food group as well as from among the food groups. This ensures a balanced intake of nutrients and helps to prevent overconsumption of any one type of food.

Question 4

Which of the following is the correct sequence of steps in the scientific method?

Accepted Answer

The correct sequence of steps in the scientific method is to first make an observation, then develop a hypothesis, which is a tentative explanation for the observation. Next, an experiment is conducted to test the hypothesis, and finally, a theory is formed based on the results of the experiment. Therefore, the correct sequence is to first make an observation, then develop a hypothesis, conduct an experiment, and form a theory. Choice D is the only option that follows this sequence.

Question 5

Which of the following is NOT a component of a valid nutrition experiment?

Accepted Answer

The opinions of the researchers are subjective and do not belong in a valid nutrition experiment. A valid experiment should be designed to minimize personal biases and rely on objective data and results.

Question 6

A popular company has begun to packaging nuts in bags containing 100 kcal.This is an example of what?

Accepted Answer

This is an example of subpackaging, which refers to the practice of packaging food products in smaller, individual portions or packages, often for convenience, portion control, or to meet specific dietary needs.

Question 7

Which of the following statements regarding diet-gene interaction is FALSE?

Accepted Answer

Risk factors for chronic diseases, including nutrition-related diseases, can be influenced by an individual's genetic makeup. Therefore, statement B is false. The other statements are true.

Question 8

Eating turkey on Thanksgiving is an example of making a food preference based on what factor?

Accepted Answer

Eating turkey on Thanksgiving is a cultural and family tradition that has been passed down through generations. It is a common American tradition to eat turkey on Thanksgiving, and many families have made this an important practice.

Question 9

As the number of variables in a research study increases,what happens to the number of subjects needed to prove an outcome?

Accepted Answer

As the number of variables increases, the complexity of the study increases, making it more difficult to prove an outcome. Therefore, a larger sample size is required to ensure that the relationship between the variables is statistically significant.

Question 10

In the 1960's a single-serving soft drink bottle contained 250 ml and about 100 kcal;today single-serving bottles contain 600 ml.This is an example of what phenomenon?

Accepted Answer

Portion distortion refers to the phenomenon of increasing portion sizes and calories of single-serving food and beverage items over time. This is precisely what has occurred with soft drink bottles, which now contain significantly more fluid ounces and calories per serving than they did in the past.

Question 11

On what does the acceptance of a scientific theory depend?

Accepted Answer

The acceptance of a scientific theory depends on the ability of other scientists to duplicate the original research and results, which is a crucial aspect of the scientific process. This replication allows for the validation and verification of the theory, as well as the identification of any potential errors or limitations. The other options, such as increased funding or the number of years since the development of the theory, may contribute to the success or impact of the research, but do not directly determine the acceptance of a theory. Similarly, the method used to form the hypothesis is important, but it is only one step in the overall process of scientific inquiry.

Question 12

Which is an example of anecdotal information?

Accepted Answer

Anecdotal information is based on personal experiences or individual accounts, which is what the runner's report of increased endurance after eating an energy bar represents. The other options involve more scientific and controlled methods of collecting data.

Question 13

Researchers compared the effect of a typical Canadian diet and a vegetarian diet on blood cholesterol levels and found that the vegetarian diet resulted in lower cholesterol levels that were not due to chance.What does this mean?

Accepted Answer

The statement indicates that the vegetarian diet led to lower cholesterol levels in a way that was statistically significant, suggesting that such a diet could potentially reduce the risk of heart disease.

Question 14

What is meant by the recommendation to eat in moderation?

Accepted Answer

Eating in moderation means consuming appropriate portion sizes, which ensures that you are getting the nutrients you need without overindulging. Selecting foods from each food group, choosing a variety of foods, and ensuring sufficient levels of vitamins and minerals are also important aspects of a healthy diet, but they are not specifically related to eating in moderation.

Question 15

"A measure of the nutrients that a food provides compared to its energy content." What is being described?

Accepted Answer

Nutrient density is the measure of the nutrients that a food provides in comparison to its energy content. It is a helpful tool in identifying foods that provide a high level of nutrients while limiting calorie intake. A food with high nutrient density will provide more essential vitamins, minerals, and other nutrients per calorie and is considered more beneficial for health.

Question 16

What is the relationship between serum cholesterol levels (levels of cholesterol in the blood)and cardiovascular disease?

Accepted Answer

Serum cholesterol is a well-established biomarker for cardiovascular disease risk, with higher levels associated with an increased risk of heart attack or stroke.

Question 17

Which is an effective strategy to for selecting nutrient dense foods?

Accepted Answer

All of the above answer choices are effective strategies for selecting nutrient dense foods. Minimally processed foods tend to retain more of their nutrient content, choosing foods with a high nutrient content compared to kcalories helps ensure that you are getting more nutrients per calorie consumed, and selecting foods low in added fats and sugars can help reduce the intake of empty calories and increase nutrient density.

Question 18

"Some individuals need to consume more orange juice,because their body synthesizes an atypical protein that degrades vitamin C more rapidly than usual.Orange juice is an excellent source of vitamin C." What is being described?

Accepted Answer

The statement describes how the need for more orange juice can be personalized based on an individual's unique metabolism and genetic makeup. This highlights the importance of recognizing individual differences in nutrition needs and tailoring recommendations accordingly.

Question 19

Which of the following is likely to limit food availability?

Accepted Answer

All of the factors listed (socioeconomic status, health status, and location) can have an impact on a person's access to and availability of food. Socioeconomic status can affect a person's ability to afford nutritious foods, while health status can impact a person's ability to travel to purchase food or prepare meals. Location can also play a role, as some communities may lack access to grocery stores or have limited options for fresh produce. Therefore, all of the answer choices are correct.

Question 20

Which of the following statements regarding the differences between a hypothesis and a theory is TRUE?

Accepted Answer

A hypothesis is a proposed explanation or prediction about a phenomenon that is based on limited evidence that requires further testing. It is an educated guess. On the other hand, a theory is a well-established explanation that is supported by a substantial body of evidence. Theories are not guesses, but they are based on scientific facts that have been repeatedly tested and confirmed through observations and experiments. Therefore, a hypothesis and a theory are not interchangeable terms.

Quiz 1: Nutrition: Food for Health