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Nutrition Exam 2
Question | Answer |
---|---|
The DRI committee that reviewed the safety of amino acid intake... | TRUE |
Vegans must combine plant protein foods to provide a full array of amino acids | FALSE |
Research supports the idea that vegetarians may be healthier than meat eaters | TRUE |
Proteins differ from the other energy nutrients because they contain what? | NITROGEN |
The basic building blocks of proteins | AMINO ACIDS |
The component that distinguishes one amino acid from another is what? | SIDE GROUP |
What is an essential amino acid? | You have to consume it through your diet |
The term nonessential when referring to amino acids means what? | The liver can produce those that the body lacks through diet |
How many essential amino acids are required by the human body? | 9 |
An example of a conditionally essential amino acid | Tyrosine |
The process of protein breakdown, recovery, and synthesis is called what? | Protein turnover |
A person is in positive nitrogen balance during which phase? | Growth |
If you are native nitrogen balance, which of the following conditions would be an exception? | Pregnant |
Enzymes are what? | Essential to all life processes |
An important buffer in the maintenance of acid base balance in the blood is what? | Protein |
Which of the following proteins helps the body maintain its resistance to disease? | Antibodies |
When glucose is unavailable, the functioning of which two parts of the body becomes compromised? | Brain and nervous system |
Marasmus may be described as a form of malnutrition and its primary cause is what? | Deprivation of food |
Kwashiorkor most frequently develops among? | Newly weaned children |
The end protects of protein metabolism are secreted by what organ? | Kidneys |
The protein RDA for healthy adults is how many grams per kilogram of body weight? | .8g/kg |
The protein requirement of a child as compared to an adult is? | Higher |
The plant food with the highest protein digestibility is? | Soybeans |
Which of the following provides the highest quality of protein? | Legumes |
All of the following are considered high quality protein sources except? | Gelatin |
Ketones can meet some of the nervous system energy needs | TRUE |
Basal metabolic needs are large compared to energy needs for activities | TRUE |
Smoker may weigh less than a nonsmoker but more likely to have visceral fat | TRUE |
Surplus dietary carbohydrate is first stored as what? | Glycogen |
Of all the nutrients, which is the easiest for the body to store as fat? | Fat |
Within a day of beginning a fast, most of the body stores of what is depleted? | Glycogen |
In the first few days of fasting, body protein is used primarily to what? | To provide glucose |
As the body shifts to partial dependence on ketones for energy during prolonged fasting, what happens? | Conserves its lean tissues |
BMR is lowest during what phase of our life? | Sleep |
Which of the following individuals would have the slowest basal metabolic rate? | 20 year old inactive woman |
The thermic affect on food represents about what % of the total food energy taken in? | 10% |
The basal metabolic rate slows with increasing age why? | Lean body mass diminishes |
Which of the following is not a factor in the variability of energy needs between individuals? | Food preference |
What body component has the greatest variability in quantity and quality (size)? | Fat mass |
According to BMI criteria, a person with a BMI of 24 is considered what? | Normal weight |
A weakness in using the BMI to assess body weight is? | It doesn’t indicate where excess fat is located on the body |
Which type of fat poses the greatest risk to health? | Visceral |
A good indicator of fat distribution on an individual would be what? | Waist circumference |
A lack of body fat can result in what? | Infertility |
About what % of US adults are overweight or obese? | 68% |
Obesity is officially defined as a BMI of what or higher? | 30 |
A safe and effective weight loss plan would be what? | Includes calorie restriction and exercise |
Which person is at the greatest health risk? | 27-year-old women with a waist circumference of 40 inches |
Which of the following is not one of the 3 indicators established by obesity experts for evaluating health risks from overweight and obesity? | Diet history |
In summary, the key to weight loss is what? | Consuming fewer calories |