What Is Life? A Guide to Biology with Physiology
4th Edition
ISBN: 9781319065447
Author: Jay Phelan
Publisher: W. H. Freeman
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Chapter 23, Problem 1MC
Summary Introduction
Introduction:
The basal metabolic rate is the baseline for the energy used by an individual in a day.
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What Is Life? A Guide to Biology with Physiology
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- Which of the statements about the use of chemical energy for biological functions is INCORRECT? A) Some chemical energy is used for metabolic maintenance B)Some chemical energy is used to manufacture molecular and cellular components C) Some chemical energy is irreversibly lost in the form of heat D) All manufactured molecular and cellular components are kept by the animal itself E) The three major types of physiological work done are biosynthesis, maintenance, and external workarrow_forwardWhich of the following states about Basal Metabolic Rate is NOT true? A) Basal Metabolic Rate is linearl proportional to weight B) Basal Metabolic Rate is the amount of energy need to maintain body functions C) Basal Metabolic Rate represents the energy needs of a human at rest D) As size increase Basal Metabolic Rate also increases E) Basal Metabolic Rate can be measured indirectly via oxygen consumptionarrow_forwardDifferent lifestyles and careers can result in completely different energy requirements -even between two similarly sized people of the same sex. (a) Compare the energy requirements of an office worker and a landscaper who mows lawns with a push mower for 8 hours each day. Who has the higher energy requirement and why? [2] (b) What might happen over the course of one year if they each consume the same number of Calories daily? Explain why.arrow_forward
- a) In what two ways (molecules) do animals store energy? b) Where is each molecule type stored? c) Which is long-term? d) Which is used first during exercise?arrow_forwardPlease answer fast How would the relationship between VE /VO₂ under the following conditions? A .An aging person who remains sedentary versus an aging person who performs regular aerobic activities? B.During transition from adolescence to young adulthood?arrow_forwardWhich of the following will NOT elevate metabolic rate? A. ncreased Age B. Decreased Body Temperature C. Increased Weight (i.e., Mass) D. A and B E. All of the Abovearrow_forward
- Adult humans synthesize large amounts of ATP in the course of a day, but their body weights do not change significantly. In the same time period, the structures and compositions of their bodies also do not change appreciably. Explain this apparent contradiction.arrow_forwardWhich of the following would increase the rate of heatexchange between an animal and its environment?(A) feathers or fur(B) vasoconstriction(C) wind blowing across the body surface(D) countercurrent heat exchangerarrow_forwardThe basal metabolic rate (BMR) represents the (a) maximum energy expenditure when exercising. (b) minimum, resting energy expenditure of an awake, alert person. (c) minimum amount of energy expenditure during light exercise. (d) muscular energy expenditure added to the resting energy expenditure.arrow_forward
- Use your sketching and writing skills to explain the relationship between metabolic rate (M) and body weight (W): M = aWb . Also generate a graph to explain how the exponent b in the allometric relationship changes between different groups of animals; and what would happen graphically if M is expressed per gram of body weight: M/W =aW(b-1)arrow_forwardThe rate of heat loss in a mammal is regulated bya. the degree of blood flow at the surface of the skin.b. the amount of perspiration.c. behavioral adaptations.d. air currents near the animal’s body.e. all of the above.arrow_forwardThe hormone insulin enhances the transport of glucose (sugar) from the blood into most body cells. Its secretion is controlled by a negative-feedback system between the concentration of glucose in the blood and the insulin-secreting cells. Therefore, which of the following statements is correct? A decrease in blood glucose concentration stimulates insulin secretion, which in turn further towers blood glucose concentration. An increase in blood glucose concentration stimulates insulin secretion, which in turn lowers blood glucose concentration. A decrease in blood glucose concentration stimulates insulin secretion, which in turn increases blood glucose concentration. An increase in blood glucose concentration stimulates insulin secretion, which in turn further increases blood glucose concentration. None of the preceding is correct.arrow_forward
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