Countercurrent Heat Exchange Lab Explanation
... The heating and cooling needs of whales change rapidly. Muscles can flatten veins and shunt blood into one system or the other. Heat is produced throughout the muscle bulk of the whale when it exercises. With movement, arterial pressure is increased. The enlarged artery pushes on the encircling vein ...
... The heating and cooling needs of whales change rapidly. Muscles can flatten veins and shunt blood into one system or the other. Heat is produced throughout the muscle bulk of the whale when it exercises. With movement, arterial pressure is increased. The enlarged artery pushes on the encircling vein ...
Homeostasis
... 15. State two ways in which the body is insulated against loss of heat. 16. Write notes on homeostasis. 17. Suggest a biological explanation for the following: A person’s fingers may turn white when exposed to low temperature for a period of time. 18. What is an endotherm? 19. What word is used to d ...
... 15. State two ways in which the body is insulated against loss of heat. 16. Write notes on homeostasis. 17. Suggest a biological explanation for the following: A person’s fingers may turn white when exposed to low temperature for a period of time. 18. What is an endotherm? 19. What word is used to d ...
UNIT 3: HOMEOSTASIS - Grade 12 Biology
... organism functions optimally (optimal range). Ectotherms: animals which depend on air temperature to maintain their metabolic rate, ie. invertebrates (organisms without backbones; fish, amphibians, reptiles) Their activity is governed by their environment. This limitation is overcome by different be ...
... organism functions optimally (optimal range). Ectotherms: animals which depend on air temperature to maintain their metabolic rate, ie. invertebrates (organisms without backbones; fish, amphibians, reptiles) Their activity is governed by their environment. This limitation is overcome by different be ...
Nursing 1510: Vital Signs
... – If body temp is above normal, the hypothalmus will direct the body to decrease heat production; – Perspiration and increased respiratory rate ...
... – If body temp is above normal, the hypothalmus will direct the body to decrease heat production; – Perspiration and increased respiratory rate ...
Homeostasis and Control Systems
... depend on air temperature to regulate metabolic rates. Thermoregulation is therefore partially dependent on the environment. Behaviour of these organisms may help adapt to their environment (Ex. Reptiles sun bathing on rocks) Endotherms (Mammals and birds) maintain a constant body temperature regard ...
... depend on air temperature to regulate metabolic rates. Thermoregulation is therefore partially dependent on the environment. Behaviour of these organisms may help adapt to their environment (Ex. Reptiles sun bathing on rocks) Endotherms (Mammals and birds) maintain a constant body temperature regard ...
~therm= heat,temperature
... Machines that work because of energy created by heat are described as being thermodynamic. ...
... Machines that work because of energy created by heat are described as being thermodynamic. ...
Document
... – water removes heat (KE) 50 - 100x faster than air alone through evaporative heat loss • method for cooling when the ambient temperature is above body temperature – panting in many mammals and birds, perspiration in humans (sensible and insensible) ...
... – water removes heat (KE) 50 - 100x faster than air alone through evaporative heat loss • method for cooling when the ambient temperature is above body temperature – panting in many mammals and birds, perspiration in humans (sensible and insensible) ...
File - thebiotutor.com
... Hot- reduce rate of metabolism so less heat is generated from exergonic reactions e.g. respiration. Cold- increased rate of metabolism so more heat is generated. Respiration generates more heat which is transferred to the blood. o Skeletal muscles Hot- not spontaneous contractions Cold- spon ...
... Hot- reduce rate of metabolism so less heat is generated from exergonic reactions e.g. respiration. Cold- increased rate of metabolism so more heat is generated. Respiration generates more heat which is transferred to the blood. o Skeletal muscles Hot- not spontaneous contractions Cold- spon ...
Specific Heat Worksheet #1
... 5. 100.0 mL of 4.0°C water is heated until its temperature is 37°C. If the specific heat of water is 4.18 J/g°C, calculate the amount of heat energy needed to cause ...
... 5. 100.0 mL of 4.0°C water is heated until its temperature is 37°C. If the specific heat of water is 4.18 J/g°C, calculate the amount of heat energy needed to cause ...
Vital Signs
... to decrease heat loss and increase heat production If cold, vasoconstriction will conserve heat—shivering will occur ...
... to decrease heat loss and increase heat production If cold, vasoconstriction will conserve heat—shivering will occur ...
12/01/08
... a. Blubber, surface to volume ratio, trapping air in fur (skin doesn’t get wet, but appendages do) 20. Does exercising in the cold make small organisms warmer? Why? a. No, disturbs insulative value of fur, increases peripheral circulation which increases heat loss 21. Describe non-shivering thermoge ...
... a. Blubber, surface to volume ratio, trapping air in fur (skin doesn’t get wet, but appendages do) 20. Does exercising in the cold make small organisms warmer? Why? a. No, disturbs insulative value of fur, increases peripheral circulation which increases heat loss 21. Describe non-shivering thermoge ...
Γ = Γ ∙ (1)
... the adiabatic rate of 5.50F/1000 ft will be offset by a warming effect of about 2oF/1000 ft, leading to net cooling of around 3.50F/1000 ft. Equation (1) can be solved for every temperature that appears on a thermodynamic chart, resulting in a family of lines called moist adiabats. Since the moist a ...
... the adiabatic rate of 5.50F/1000 ft will be offset by a warming effect of about 2oF/1000 ft, leading to net cooling of around 3.50F/1000 ft. Equation (1) can be solved for every temperature that appears on a thermodynamic chart, resulting in a family of lines called moist adiabats. Since the moist a ...
CCD Apologia Chemistry Syllabus 2011-12
... Define Energy: The ability to do work – to cause motion. Work: The force applied to an object times the distance that the object travels parallel to that force. For work to occur, there must be motion. Heat: Energy transferred as a consequence of temperature differences. It is energy on its way from ...
... Define Energy: The ability to do work – to cause motion. Work: The force applied to an object times the distance that the object travels parallel to that force. For work to occur, there must be motion. Heat: Energy transferred as a consequence of temperature differences. It is energy on its way from ...
Heat Lost Heat Gained problems The heat lost by one substance in
... Heat Lost Heat Gained problems The heat lost by one substance in a system is gained by another in the system when there is a difference in temperature between the substances. There is also a heat transfer between the system and its surroundings if they are at different temperatures. ...
... Heat Lost Heat Gained problems The heat lost by one substance in a system is gained by another in the system when there is a difference in temperature between the substances. There is also a heat transfer between the system and its surroundings if they are at different temperatures. ...
Homeostasis - GEOCITIES.ws
... Secrete a mixture of water, dissolved salts, and urea via sweat pores in the skin As sweat evaporates, the skin is cooled Sweating is under autonomic (involuntary) nervous control = the hypothalamus in the brain Skin & Thermoregulation Subcutaneous fat in the hypodermis insulates the body. ...
... Secrete a mixture of water, dissolved salts, and urea via sweat pores in the skin As sweat evaporates, the skin is cooled Sweating is under autonomic (involuntary) nervous control = the hypothalamus in the brain Skin & Thermoregulation Subcutaneous fat in the hypodermis insulates the body. ...
6–18 A steam power plant receives heat from a furnace at a rate of
... Class ZA, Date: December 17, 2011 Name: ...
... Class ZA, Date: December 17, 2011 Name: ...
10.213 Recitation April 8, 2002 A heat pump is used to heat a house
... • A change in state of air from 250 °C and 3 bar to 80 °C and 1 bar. • The production of 1.8 kJ of work • The transfer of an undisclosed amount of heat to a heat reservoir at 30 °C. Determine whether the claimed performance of the process is consistent with the second law. Assume that air is an idea ...
... • A change in state of air from 250 °C and 3 bar to 80 °C and 1 bar. • The production of 1.8 kJ of work • The transfer of an undisclosed amount of heat to a heat reservoir at 30 °C. Determine whether the claimed performance of the process is consistent with the second law. Assume that air is an idea ...
Temperature Conversions
... 4. A 400g glass coffee cup is at room temperature, 20.0ºC. It is then plunged into hot dishwater, 80.0ºC. If the temperature of the cup reaches that of the dishwater, how much heat does the cup absorb? Assume the mass of the dishwater is large enough so its temperature doesn’t change appreciably. ...
... 4. A 400g glass coffee cup is at room temperature, 20.0ºC. It is then plunged into hot dishwater, 80.0ºC. If the temperature of the cup reaches that of the dishwater, how much heat does the cup absorb? Assume the mass of the dishwater is large enough so its temperature doesn’t change appreciably. ...
Read-Around therm = heat, temperature
... What is the word that names something that is possibly in your lunchbox that is insulated to keep food or drinks, such as soup or hot chocolate, warm on a cold day? ...
... What is the word that names something that is possibly in your lunchbox that is insulated to keep food or drinks, such as soup or hot chocolate, warm on a cold day? ...
Thermodynamics Guided Notes
... Water flowing from a cooler substance to a warmer substance is kind of like water flowing uphill. Draw the picture of heat flowing from an object of higher temperature to one of lower temperature. ...
... Water flowing from a cooler substance to a warmer substance is kind of like water flowing uphill. Draw the picture of heat flowing from an object of higher temperature to one of lower temperature. ...
Hyperthermia
Hyperthermia is elevated body temperature due to failed thermoregulation that occurs when a body produces or absorbs more heat than it dissipates. Extreme temperature elevation then becomes a medical emergency requiring immediate treatment to prevent disability or death.The most common causes include heat stroke and adverse reactions to drugs. The former is an acute temperature elevation caused by exposure to excessive heat, or combination of heat and humidity, that overwhelms the heat-regulating mechanisms. The latter is a relatively rare side effect of many drugs, particularly those that affect the central nervous system. Malignant hyperthermia is a rare complication of some types of general anesthesia.Hyperthermia differs from fever in that the body's temperature set point remains unchanged. The opposite is hypothermia, which occurs when the temperature drops below that required to maintain normal metabolism.