Tag: homeostasis
Questions Related to homeostasis
Homeostasis is the process which regulates
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Formation of food
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External environment
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Metabolism regulation
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Internal environment
Homeostasis is the ability of an open system to regulate its internal environment to maintain stable conditions by means of multiple dynamic equilibrium adjustments controlled by interrelated regulation mechanisms. All living organisms, whether unicellular or multicellular exhibit homeostasis. Therefore, the correct answer is option D.
The normal temperature of human body on the Kelvin scale is
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280
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290
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300
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310
Normal body temperature is 37 degree Celsius. To convert from Celsius to Kelvin add 273. So 37 + 273 = 310 degrees Kelvin.
Human temperature is set at
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$47.5^0$C
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$37^0$C
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$37^0$F
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$98.4^0$C
- In humans, the average internal temperature is 37.0 °C (98.6 °F).
- Hypothermia is a medical emergency that occurs when your body loses heat faster than it can produce heat, causing a dangerously low body temperature.
- Hypothermia occurs as your body temperature falls below 35.0 °C.
- Hence Human temperature is set at 37.0 °C.
- So, the correct answer is '37.0 °C'.
Mechanism for cooling of human body is
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Sweating
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Crying
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Laughing
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None of the above
- Sweating from sweat glands, often in response to heat, exercise or stress.
- Sweating is also called as Perspiration. is the production of fluids secreted by the sweat glands in the skin of mammals.
- In humans, sweating is primarily a means of thermoregulation, which is achieved by the water-rich secretion of the eccrine glands.
- Evaporation of sweat from the skin surface has a cooling effect due to evaporative cooling. Hence, Mechanism for cooling of the human body is Sweating.
Which of the following is not a type of tactile sensation
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Heat
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Touch
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Vibration
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Pressure
Tactile sensations are produced by the pressure receptors in the skin. The tactual sensation is related to touch.
The average temperature of human body is
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30.5$^oC$
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36.9$^oC$
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98.6$^oF$
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97.4$^oC$
The normal temperature of human body on the Kelvin scale is ............ K
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280
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290
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300
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310
Kelvin is the unit of measurement of temperature on an absolute scale. Kelvin temperature scale has an absolute zero below which temperatures do not exist. Absolute zero, is the temperature corresponds to a temperature of - 273.15° on the Celsius scale.The normal temperature of human body is 36.85$^0 $C.
Which one is correctly matched ?
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Tears - Excretion of salts
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Sweat - Thermoregulation
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Saliva - Testing food
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Satoish - Sexual attraction
- Thermoregulation is the ability of an organism to keep its body temperature within certain boundaries, even when the surrounding temperature is very different.
- When the body becomes hotter than the normal temperature the sweat glands releases sweat which in turns cools the skin as it evaporates. This helps the lower internal temperature of the body.
- So, the correct answer is 'Sweat-Thermoregulation'.
Homeothermy in humans is maintained through
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Negative feed-back loop
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Thermoreceptors
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Cold receptors
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Warm receptors
Temperature of human body is maintained by
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Perspiration
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Conduction and convection
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Radiation
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All of the above
- Core temperature is regulated by the hypothalamus (in the brain), which is often called the body’s thermostat.
- The hypothalamus responds to various temperature receptors located throughout the body and makes physiological adjustments to maintain constant core temperature.
- The human body regulates temperature by keeping a tight balance between heat gain(conduction) and heat loss(convention). And in humans, perspiration (sweating) is primarily a means of thermoregulation. Hence, Temperature of the human body is maintained by Perspiration, Conduction and convection and Radiation. So, the correct answer is 'All of the above'.