Nutrition: Concepts and Controversies
14th Edition
ISBN: 9781305886865
Author: Sizer, Frances , WHITNEY, Ellie
Publisher: Cengage Learning
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Chapter 5, Problem 8SC
Summary Introduction
Introduction:
Body needs energy to perform its normal functioning. Body process the food we take and convert it into energy by various methods and stores excess amount for the future. When the food supply becomes short or insufficient to meet the energy requirements, the body utilizes stored energy.
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Fill in the blank boxes of the table with short phrases that describe the main role of each organ with respect to glucose/energy metabolism
ORGANS
FASTING
FEASTING
EXERCISE
Intestine
No nutrients are being digested or absorbed
Digests and absorbs nutrients
Depends when the person last ate- could be absorbing or not
Brain
Uses glucose
Pancreas
Releases insulin
Liver
Glycogenolysis
If intense exercise:
Gluconeogenesis, lipolysis, amino acid breakdown
Muscle
Stores glycogen
Builds muscle
Adipose Tissue
Releases triglycerides to yield energy
Kidney
Filtering lots of urea
Filtering urea
Filtering urea
Why is solely cutting calories not as efficient as cutting calories and exercise?
Reduced resting metabolic rate
Increased metabolism
Reduced stress tolerance
Increased effectiveness of diet
A man is found after being lost in a foodless desert for a week. He only survived because he found a water source. Even though he could not have any glucose from food left in his body, he still has the energy to walk and move around. How is he getting energy?
Chapter 5 Solutions
Nutrition: Concepts and Controversies
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Similar questions
- Which of the following statements is not true? a. Essential nutrients can be synthesized by the body. b. Vitamins are required in small quantities for bodily function. c. Some amino acids can be synthesized by the body, while others need to be obtained from diet. d. Vitamins come in two categories: fat-soluble and water-soluble.arrow_forwardThe preferred energy sources for the body are ________.arrow_forwardThis is what provides most energy for aerobic workouts (long-term source of energy) minerals vitamins lactic acid glucose glycogen creatine phosphate proteinarrow_forward
- Which of the following statements is false? protein catabolism is the building of new protein anabolic steroids help build muscle tissue. anabolic processes build new protein catabolic steroids help breakdown muscle O protein catabolism is the breakdown of proteinarrow_forwardWhich of the following statements about gluconeogenesis is TRUE? Gluconeogenesis is one way to maintain blood glucose levels between meals. Gluconeogenesis converts fatty acids into glucose. Gluconeogenesis is activated by the hormone insulin. Gluconeogenesis reduces blood glucose levels after a carbohydrate-rich meal.arrow_forwardWhen a person loses body weight, what is the only way that mass is lost? As exhaled oxygen As ATP As exhaled carbon dioxide As waterarrow_forward
- About 12 hours later, Devan hasn’t eaten all day. He eats a meal of steak and eggs. What effect does this meal have on Devan’s body? Group of answer choices Devan will begin burning glucose for energy and his fat metabolism will shut down. Devan’s liver will continue to make glucose from glycogen and amino acids Devan’s liver will begin to store glucose as glycogen Devan’s liver will continue to make ketone bodies from glucosarrow_forwardRestriction of food intake leads to which of the following? An increase in whole body energy expenditure Reductions in resting energy expenditure due in part to reduction in body mass An increase in the thermic effect of food due to lower energy intake Reductions in activity energy expenditure due to increased activity costs associated with a smaller body sizearrow_forwardIf a person has a medical condition in which their mitochondria do not function properly, what nutrient will they not be able to use for energy? Group of answer choices Glucose Fatty acids Amino Acids Ketone bodies Cholesterol They would not be able to use any of the above nutrientsarrow_forward
- Energy nutrients can be found in a variety of foods. From the list below, select the foods that would provide the body with the most protein. Pasta Beans Butter Meat Breadarrow_forwardCholesterol absorption gets hindered by foods high in fiber. When energy supplies go low then body utilizes its stored fat reserves for energy. 100 word description With examplesarrow_forwardMuscle does not provide glucose for the brain during times of starvation. Why? You may choose more than one answer. Muscle lacks sufficient glucose stores. Muscle uses the glucose for movement to go find food. Liver provides glucose for brain Glucagon prevents the secretion of glucose Muscle lacks the enzymes necessary to produce free glucosearrow_forward
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