LAB MANUAL FOR HUMAN A&P MAIN VERSION
4th Edition
ISBN: 9781266871016
Author: Martin
Publisher: MCG
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Chapter 56, Problem 4.6A
For each of the following factors, indicate whether it would increase or decrease a person’s
6. Increase in the ratio of surface area to volume.
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Which individual would you predict to have a higher basal metabolic rate, a man who is 6 feet tall weighing 200 pounds or a man who is 5 feet, 9 inches tall weighing 160 pounds? Explain your answer.
Which of the following conditions is not applicable to measuring basal metabolic rate? a. reclining b. the time immediately after a meal c. room temperature d. resting
Basal Metabolic Rate (BMR) is the amount of energy your body uses to function at rest in a day. This includes the energy required to keep the heart beating, the lungs breathing, the kidneys functioning, and the body temperature stabilized. Approximately 70 percent of an individual’s energy expenditure goes into basal metabolism. The other 30 percent goes into digestion and absorption of nutrients (10%) and physical movement (about 20%).
Calculate your basal metabolic rate in Calories using the appropriate equation here:
Females: BMR = 655 + (9.6 × wt(kg)) + (1.8 × ht(cm)) – (4.7 × age(yrs))
Males: BMR = 66 + (13.7 × wt(kg)) + (5 × ht(cm)) – (6.8 × age(yrs))
Calculate how many Calories you burn overall in a day.
Chapter 56 Solutions
LAB MANUAL FOR HUMAN A&P MAIN VERSION
Ch. 56 - The type of metabolic reactions that release...Ch. 56 - The reactants of glucose catabolism are _______....Ch. 56 - Which of the following is not a factor that can...Ch. 56 - A measurement of the minimal amount of energy...Ch. 56 - Direct calorimetry measures. a. oxygen consumption...Ch. 56 - Basal metabolic rate (BMR) is best measured when a...Ch. 56 - Prob. 7PLCh. 56 - Prob. 1.4ACh. 56 - The polymerization of glycogen from glucose...Ch. 56 - The sum total of all chemical reactions that occur...
Ch. 56 - The break down of glucose into pyruvate is...Ch. 56 - In this experiment, metabolic rate was measured...Ch. 56 - The cells of the body utilize oxygen in the...Ch. 56 - Smaller organisms have a _______________________...Ch. 56 - Prob. 3.7ACh. 56 - The greater the ratio of surface area to volume of...Ch. 56 - Prob. 3.9ACh. 56 - (a) If Bill, who weighs 160 pounds, consumed 2025...Ch. 56 - For each of the following factors, indicate...Ch. 56 - Prob. 4.2ACh. 56 - For each of the following factors, indicate...Ch. 56 - For each of the following factors, indicate...Ch. 56 - For each of the following factors, indicate...Ch. 56 - For each of the following factors, indicate...Ch. 56 - For each of the following factors, indicate...Ch. 56 - For each of the following factors, indicate...
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- Which of the following definitions best describes an individuals Basal Metabolic Rate? The amount of energy used while eating. O The amount of calories required to support an active lifestyle. O The ratio of total cholesterol / HDL. ( The number of calories to keep a body functioning at rest.arrow_forwardWhen you jog, most of the food energy you burn above your basal metabolic rate (BMR) ends up as internal energy that would raise your body temperature if it were not eliminated. The evaporation of perspiration is the primary mechanism for eliminating this energy. Determine the amount of water you lose to evaporation when running for 32 minutes at a rate that uses 400 kcal/h above your BMR. (That amount is often considered to be the "maximum fat-burning" energy output. The latent heat of vaporization of water at room temperature is 2.5 106 J/kg.)The metabolism of 1 gram of fat generates approximately 8.65 kcal of energy and produces approximately 1 gram of water. (The hydrogen atoms in the fat molecule are transferred to oxygen to form water.) What fraction of your need for water will be provided by fat metabolism?arrow_forwardThe thermoneutral zone is the range of body temperatures over which an animal can maintain a constant basal metabolic rate. Which of the following patterns about thermoregulation is true? A. Below the lower critical threshold, animals must decrease their metabolic rate in order to maintain body temperature B. Animals living in the arctic have higher critical temperatures than do animals in the tropics C. When outside temperatures are below the lower critical temperature for an animal, animals in the arctic increase their metabolic rate faster than do animals in the tropics D. All of the above E. None of the abovearrow_forward
- What is thermoregulation and why is it necessary for the human body to function properly? List two physiological responses the human body takes to when its core temperature gets too high. Briefly explain how each works to reduce core temperature. Explain why one of these responses will not work if the air temperature is extremely high. Explain why one of these responses will not work if the relative humidity is extremely high.arrow_forwardGenAlex Medical, a leading manufacturer of medical laboratory equipment, is designing a new automated system that can detect normal levels of dissolved glucose (70. to 105 mg/dL), using a blood sample that is as small as 5.0 mL. Calculate the minimum mass in milligrams of glucose that the new system must be able to detect. Be sure your answer has the correct number of significant digits.arrow_forwardselect all of the processes from below which describe changes which are independent of the path by which the change occurs. the elevation increase experienced by a traveller travelling from Grand Isle, LA to Denver, Coloradothe work generated by the body of an athlete as it metabolizes the sucrose in a cube of sugarthe heat generated by the body of a student during a chemistry examthe work accomplished in burning a gallon of gasolinethe energy evolved when a cube of sugar is oxidized to CO2(g) and H2O(g)the latitude increase experienced by a traveller travelling from Baton Rouge, LA to Anchorage, Alaskathe number of rotations the earth undergoes over a specified period of timearrow_forward
- With regard to thermoregulation in humans, what could be considered an accurate consequence of the outside temperature dropping below the lower critical temperature? A. The individual will begin to breathe in less oxygen and exhale less carbon dioxide. B. The metabolic needs of the individual will increase if they remain below the lower critical temperature for sufficient time-frames. C. Capillaries (i.e. blood vessels) near the surface of the skin will dilate in order to allow blood to circulate more freely throughout the organism, distributing heat to raise temperature. D. The person's Basal Metabolic Rate will be lowered to match the Standard Metabolic Rate of an ectotherm of comparable size. E. Hormones from the hypothalamus will be released, which lead to the initiation of a positive feedback response that amplifies muscle contraction, leading to shivering.arrow_forwardTemperature and wind combine to cause heat loss. Hypothermia occurs when the body temperature falls more than 4 degrees F below normal. Death can occur if hypothermia persists for over 3 hours. According to the chart, in which of the following temperature and wind combinations would the body temperature be the lowest and a person most at risk for developing hypothermia?arrow_forwardB) Intersystem Conversions Convert your body weight from pounds (Ibs) to g (1 kg = 2.2 Ib): Weight Ibs = _kg = g Convert your height from inches to meters (1 inch = 2.54 cm): Height ft_in = in = cm = m Convert these temperature readings: Unless you are ill, your body temperature in Fahrenheit should be about 98.6 °F. In °C, what would it be in Celsius? 98.6 °F = °C Altitude affects the temperature at which water boils. At the bottom of the Grand Canyon, - 2000 ft above sea level, water boils at 97.8°C. At the top of the Grand Canyon, water boils at 92.2°C. What would these temperatures be on the Fahrenheit scale? 97.8°C = °F 92.2°C = °Farrow_forward
- Thermoregulation is a process used to maintain body temperature within an optimum range. Describe how the human body maintains body temperature in both hot and cold weather ensuring you explain the mechanisms that are involved.arrow_forwardplease answer both a and barrow_forwardThe catalytic activity of enzymes depends on the presence of appropriate environmental conditions. Pepsin is a digestive enzyme found in the stomach and facilitates the digestion of large proteins. If pepsin is removed from this acidic environment of the stomach and is instead placed in a more basic environment, it will cease to function. Describe the specific effect that a change in environmental pH will have on pepsin and explain how this change can lead to inhibition of its catalytic activity. Respond in 4 to 6 complete sentences.arrow_forward
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