Nutrition Ch. 6-9 True/False – Flashcards

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question
Sickle Cell is an example of an inherited mistake in the amino acid sequence
answer
True
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for the majority of exercisers, adding excess protein or amino acid supplements to an adequate diet will stimulate muscle building
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False
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some foods are so high in acid that they are capable of making the acid in the stomach even stronger
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False
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Amino Acid supplements are easy to digest and can relieve the digestive system from overworking
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False
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when a person ingests a large dose of any single amino acid, absorption of others of its type may be limited
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True
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many healthy people can consume less than the recommended amount of protein and still meet their bodies protein needs
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True
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If needed, protein can help to maintain a steady blood glucose level and so meet the glucose needs of the brain
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True
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Without critical essential amino acid to perform their roles many of the body's life-sustaining activities would come to a halt
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True
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Over-consumption of protein rich foods offers no benefits and may pose health risks, particularly for weakened kidneys.
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True
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Each amino acid has its own distinctive chemical side chain attached to the center carbon of the backbone
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False
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the body is able to make all the 20 amino acids needed from fragments derived from carbohydrate and fat
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False
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Antibodies are identical large proteins in the blood that are effective in destroying multiple types of invading foreign particles
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True
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Growing children are in negative nitrogen balance because they need more protein for adding blood, bone, and muscle cells
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False
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Legumes are a good source of protein, many B vitamins iron and other minerals, making them exceptionally nutritious foods
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True
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Sound nutrition authorities acknowledge that well chosen vegetarian diets are consistent with good health and can meet nutrient needs
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True
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Vegetarians have significantly higher rates of hypertension than the general public
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False
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the growth of well fed vegetarian children is similar to that of their meet- eating peers
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False
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Water soluble vitamins are absorbed directly in the blood and this stored more readily in tissues
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False
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The most familar function of vitamin A is to sustain normal eyesight
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True
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Vitamin D deficiency in children can cause bowed legs, an abnormality seen in the disease rickets.
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True
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Infants are born with a adequate vitamin K in their intestinal tract
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False
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The B vitamins work together with enzymes in the metabolism of energy nutrients and in the making of new cells
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True
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No convincing evidence indicating benefits from antioxidant supplements in well nourished people exists
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True
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A plant lacking a mineral or failing to make a needed vitamin dies before it can bear food for human consumption
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True
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Anyone who eats a meal high in sat can temporarily increase their body's water content
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True
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After about 25, regardless of calcium intake, bones begin to lose density
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False
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A deficiency of sodium is not harmful
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False
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High salt intakes have been linked with high rates of stomach cancer
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True
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The bio-availability of calcium in calcium fortified orange juice is comparable to that of milk
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True
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The body will signal thirst before dehydration occurs to prevent problems with fluid loss
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False
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Soft water contains sodium which may aggravate hypertension
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True
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Some minerals act as buffers to help maintain body fluids at the correct pH to permit life's processes
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True
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The main source of iodine in the U.S. is plants grown in the middle part of the country
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False
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The primary role of fluoride is to prevent dental caries throughout life
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True
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Whether a person develops osteoporosis seems to depend partly on heredity and partly on the environment, including nutrition
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True
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Authorities recommend foods as a source of calcium in preference to calcium supplements
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True
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Women in their reproductive years are more likely to carry more intraabdominal fat than are women past menopause
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False
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Waist circumference indicates visceral fatness, and above a certain girth, disease risk rises
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True
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Eating certain foods can elevate the basal metabolic rate, and thus promote weight loss
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False
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Taller people need proportionately more energy than shorter people to balance their energy budgets
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True
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For someone with at least one obese parent, the chance of becoming obese is estimated to be between 30-70 percent
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True
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Physical activity must be long and arduous to achieve fat loss
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False
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the DRI Committee recommends at least 130 grams of carbohydrates a day
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True
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the BMI is very valuable in helping athletes determine their health risks
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False
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No single body composition or weight suits everyone, needs vary by gender, lifestyle, and stage in life
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True
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Leptin is a hormone produced by the body to stimulate the appetite and encourage eating.
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False
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The set-point theory states that the body's regulatory controls will maintain body weight over time and resist efforts to lose weight by dieting
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True
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High- protein, low carbohydrate diets have been shown to be much more effective than other plans in promoting successful weight loss
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False
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Society plays a role in eating disorders because the associated behaviors are almost unknown in cultures where self-worth is unrelated to body leanness
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True
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Bulimia is more prevalent than anorexia nervosa and is more common in women than men
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True
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