Straighterline Intro to Nutri Practice Final Exam Q&A All Verified

Straighterline Intro to Nutri Practice Final Exam Q&A All Verified One of the main functions of water in the body is to - Answer-help regulate body temperature. The evaporation of perspiration allows the body to cool efficiently. Muscular contractions cause one-way movement of food through the gastrointestinal tract in a process called - Answer-peristalsis. Which of the conditions below is a risk factor for cardiovascular disease? - Answer-HDL cholesterol < 40 mg/dl By definition, hunger is the physiological state that results when a person - Answer-does not eat enough to meet energy needs. Hunger is primarily a physical, biological drive to eat that is controlled by internal body mechanisms. As nutrients are digested and absorbed by the stomach and small intestines, signals are sent from these organs to the liver and brain to reduce further intake of food. Which minerals work as cofactors, enabling proteins to function? - Answer-copper and selenium What is the by-product of protein metabolism excreted in urine? - Answer-urea Urea, a primary waste product, is a by-product of protein metabolism that contains nitrogen. When excess protein is ingested, nitrogen is removed from amino acids and excreted, as urea, in the urine. What is the leading cause of malnutrition in the developing world? - Answer-extreme poverty Malnutrition is failing health caused by a long-term deficiency or excess in calorie and/or nutrient intake. Poverty is the primary cause. Anorexia nervosa is characterized primarily by - Answer-a deliberate lack of caloric intake Refusal to eat enough food to maintain an acceptable weight is a hallmark of the disease. In infancy, which nutritional component is most vital for development of the nervous system? - Answer-fat The term "compression of morbidity" refers to - Answer-striving to have the greatest number of healthy years and the shortest period of illness. What's Covered in the Exam - Answer-Content Domain/ Percentage of the exam/ Number of questions on exam - Fundamentals of Nutrition/ 16%-22%/ 8-11 - Energy Nutrients and Energy Balance/ 20%-26%/ 10-13 - Vitamins, Minerals, and Water/ 20%-26%/ 10-13 - Undernutrition, Eating Disorders, and Food Safety/ 18%-24%/ 9-12 - Life Stages and Nutrition/ 12%-18%/ 6-9 Exam Length and Format: - Answer-The exam contains 60 multiple-choice questions to be answered in 90 minutes. You will be able to review your attempt immediately after you finish the exam. _______ is needed in the body to make vitamin D, bile acids, and cortisol. - AnswerCholesterol. Cholesterol is a precursor molecule needed to synthesize vitamin D, bile acids and cortisol. Lipase - Answer-Lipase is the enzyme needed to break down fats Phospholipid - Answer-Phospholipid is a type of lipid present in the cell membrane, as they can form lipid bilayers. Chylomicron - Answer-Chylomicron is a lipid particle responsible to transport lipids from the intestine to other parts of the body If the diet is deficient in one or more of the _____amino acids, the body must break down existing proteins to provide the amino acids. - Answer-Essential. Essential amino acids are molecules that our body cannot produce them; therefore it is essential to include them in the diet. Dipeptide - Answer-A molecule that contained 2 amino acids linked together by a peptide bond Non-essential - Answer-Non-essential molecules can be produced by the body; therefore it is not essential to have them in the diet. Aromatic - Answer-Aromatic amino acids are molecules that have an aromatic ring in their structure. When taking amino acids supplements, which scenario is true regarding the amino acid transport system? The amino acids from the supplement will compete with each other, slowing absorption of other amino acids. True or false? - Answer-TRUE. Since the amino acid from the supplement is present in higher concentration, it will be absorbed faster as compared with the other amino acids. When taking amino acids supplements, which scenario is true regarding the amino acid transport system? The amino acids from the supplement will compete with each other, increasing absorption of other amino acids True or false? - Answer-False. When two amino acids compete, the absorption of the one present in lower concentration will be impaired. When taking amino acids supplements, which scenario is true regarding the amino acid transport system? The amino acids from the supplement will be eliminated from the body. True or false? - Answer-False. The amino acid from the supplement will be absorbed at a higher rate, as it is present in higher concentration as compared with the other amino acids. When taking amino acids supplements, which scenario is true regarding the amino acid transport system? The amino acids from the supplement will use an alternate transport system. True or false? - Answer-False. The amino acid from the supplement will not use an alternate transport system. It will be absorbed at a faster rate as compared with the other amino acids. Which of the following minerals help regulate fluid balance?... Continues...