Bio Nutrition

Max wants to increase intake of vitamin C without taking a dietary supplements. when he shops for food he reads nutrition facts labels. which of the following kinds of information will help him choose foods that are the richest source of vitamin C?

% DVs

A serving of food contains 2 g carbohydrate, 16 g protein, 6 g fat, 2mcg vitamin B12, and 60mg iron. based on this information, this food provides _________ kcal/serving

126

A teaspoon of sugar supplies about 16 kilocalories, which is the same as

16,000

The recommended dose of a vitamin is 2.0 mg. based on this information megadose of the vitamin would be_______ my or more

20.0

which of the following statements is true?

A diet that has variety contains many different kinds of nutritious foods

Which of the following statements is true?

An essential nutrient must be supplied by the diet

A substance that can protect a person cells from being damaged or destroyed by a certain harmful factor is a (an)

Antioxidant

A primary function of the digestive system is the

Breakdown of food into nutrients

Which of the following substances is a phytochemical?

Caffeine

Most forms of are a source of energy for cells

Carbohydrates

The amount of vitamin C that meets about 98% of the population's need for the nutrient is the _____ for the vitamin.

RDA

According to the US food and drug administration, which of the following substances cannot be classified as a dietary supplement?

Tobacco

which of the following substances is a nutrient that does not supply any energy for the human body?

Vitamin D

Derrick takes proteins supplements before and after his workouts. he told his workout partner that he became 200% stronger within a couple of months after he added the supplements to his diet. His report about the facts of the supplements is an example of a

anecdote

In molecule forms when two or more atoms are attached to each other and held together by

bonds

Generally, epidemiological studies

cannot determine cause and effect relationships

the _________ is the smallest living functional unit is an organism.

cell

which of the following groups of Americans is most at risk of undernutrition?

chronic alcoholics

blood in blood vessels are primary components of the __________ system

circulatory

Having a control group enables researchers to

compare findings of the control group with those of the experimental group

Which of the following statements is true?

daily values are dietary standards developed for food labeling purposes

which of the following websites is most likely a source of biased and unreliable nutrition information?

dietsnomore4u.com

scientist conduct a study in which 100 adults with chronic diarrhea are divided into two groups of 50 people. One group is given a supply of yogurt that contains a certain kind of bacteria in the other group is given yogurt that is bacterial free. The studies participants and researchers do not know which group of subjects has the bacteria in the yogurt in which group does not. The scientist instructs the participants to eat the entire 8 ounce of yogurt once a day for a month and record their bowl habits. this is an example of what study?

double blinded

An _____ is an ion that can conduct electricity

electrolyte

iron, calcium and carbon are

elements

an _______ is a compound that speeds up(catalyzes) a chemical reaction

enzyme

Jamie wants to eat more foods that are naturally high in phytochemicals and fiber. Based on this information, which of the following foods would you recommend?

fresh fruits and vegetables

today, The only food Meghan ate was a casserole that contain 24 ounces of lemon flavored yogurt, 16 ounces of cooked turkey, in 10 ounces of cooked noodles. according to my plate she ate nothing from the food group that includes

fruit

which of the following statements about fruits and vegetables is false?

fruit juices provide more fiber than whole fruit

which of the following foods is naturally a rich source of photochemical?

grapes

tolerable upper limit for the nutrients is the

highest average amount that is unlikely to harm most people when consumed daily

Which of the following statements is true?

in some regions of the US the traditional African American diet may contain unhealthy amounts of fat and sodium

an ________ is an atom or a group of atoms that has A positive or negative charge

ion

Which of the following statements is true?

it is not usual for similar studies especially those involving human subjects to have different findings

_________ is the sum of all chemical reactions that occur in a living cells

metabolism

an essential nutrient

must be supplied by the diet

researchers are conducting a study to determine the effects of vitamin C and a human immune system. The study involves providing pills that certain vitamin C toone group of the human subjects and pills that do not contain vitamin C or other Active ingredients to another group of people. The pills that do not contain the vitamin are?

placebos

over a two-year period, a team of scientists records the eating behaviors in physical activity patterns of a group of healthy eight-year-old children to determine whether these factors are associated with weight gain. this study is an example of

prospective

A person claims his newly invented device treats cancer without surgery medication or other forms of conventional medical therapy. however people who have use the device reported that it was not helpful and it may have harmed him. according to this information the inventors claim in his device are?

quackery

eating a high salt diet increases peoples chances of developing high blood pressure. thus, A diet that supplies excessive amounts of salt is a __________ for high blood

risk factor

when following recipes Candace wants to use facts that are not solid fats. which of the following foods would you recommend?

safflower oil

in chemistry class Carl combines hydrochloric acid with a base called sodium Hydroxide. this chemical reaction results in the formation of a

salt

some food guides classify dried beans and peas with

seeds and nuts

Which of the following behaviors is known risk factor for heart disease?

smoking cigarettes

_____ includes farming techniques that do not deplete natural resources or harm the environment.

sustainable agriculture

Phil is a participate in a study design to examine the effects of taking a dietary supplement a muscle tissue development Phil suspects he is in the experimental group, because he is certain his muscles are bigger and stronger as a result of taking the product supplied by the researchers. when the study is completed, Phil thinks the researchers made a mistake he is certain his muscle mass increase while he took the supplement. according to this information Phils belief that his physical condition improved while he participated in the study is an example of?

the placebo effect

In 2010, Americans ate more ____ than in 1970.

total calories

Christine uses % DVs to help plan nutritious menus with various packaged foods. she should try to obtain at least 100% of the daily value for which of the following nutrients?

vitamin C

which of the following nutrients is the most essential for life?

water