Tag: temperature control

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Questions Related to temperature control

Multiple choice temperature control homeostasis coordination and response biology

Homeostasis is the process which regulates

  1. Formation of food

  2. External environment

  3. Metabolism regulation

  4. Internal environment
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

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.

Multiple choice temperature control homeostasis coordination and response biology

The normal temperature of human body on the Kelvin scale is

  1. 280

  2. 290

  3. 300

  4. 310
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Normal body temperature is 37 degree Celsius. To convert from Celsius to Kelvin add 273. So 37 + 273 = 310 degrees Kelvin.

Therefore, the correct answer is option D.

Multiple choice temperature control homeostasis coordination and response biology

Human temperature is set at

  1. $47.5^0$C
  2. $37^0$C
  3. $37^0$F
  4. $98.4^0$C
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation
  • 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'.
Multiple choice temperature control homeostasis coordination and response biology

Mechanism for cooling of human body is

  1. Sweating

  2. Crying

  3. Laughing

  4. None of the above
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation
  • 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. 
 So, the correct answer is 'Sweating'.
Multiple choice temperature control homeostasis coordination and response biology

Which of the following is not a type of tactile sensation

  1. Heat

  2. Touch

  3. Vibration

  4. Pressure
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Tactile sensations are produced by the pressure receptors in the skin. The tactual sensation is related to touch.


So, the correct option is 'heat'.

Multiple choice temperature control homeostasis coordination and response biology

The average temperature of human body is

  1. 30.5$^oC$
  2. 36.9$^oC$
  3. 98.6$^oF$
  4. 97.4$^oC$
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

The average human body temperature is approximately 98.6 degrees Fahrenheit, which is equivalent to 37 degrees Celsius. Option C is the standard accepted value.

Multiple choice temperature control homeostasis coordination and response biology

The normal temperature of human body on the Kelvin scale is ............ K

  1. 280

  2. 290

  3. 300

  4. 310
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

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.   

Temperature in kelvin = temperature in celsius + 273.15
Temperature in kelvin = 36.85 + 273.15 = 310 K.
Thus, the correct answer is option D.

Multiple choice temperature control homeostasis coordination and response biology

Which one is correctly matched ?

  1. Tears - Excretion of salts

  2. Sweat - Thermoregulation

  3. Saliva - Testing food

  4. Satoish - Sexual attraction
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation
  • 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'.
Multiple choice temperature control homeostasis coordination and response biology

Homeothermy in humans is maintained through 

  1. Negative feed-back loop

  2. Thermoreceptors

  3. Cold receptors

  4. Warm receptors
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Homeothermy (the maintenance of a constant internal body temperature) is regulated by negative feedback loops, where the body detects deviations from the set point and initiates physiological responses to return to that set point.

Multiple choice temperature control homeostasis coordination and response biology

Temperature of human body is maintained by

  1. Perspiration

  2. Conduction and convection

  3. Radiation

  4. All of the above
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation
  • 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'.