Homeostatic Mechanisms
Biology ⇒ Biological Systems and Homeostasis
Homeostatic Mechanisms starts at 7 and continues till grade 12.
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Describe how the body maintains homeostasis when blood pressure drops suddenly.
Describe the consequences of a failure in homeostatic regulation of blood pH.
Describe the role of antidiuretic hormone (ADH) in water homeostasis.
Describe the role of feedback loops in homeostatic regulation.
Describe the role of insulin in homeostasis of blood glucose.
Describe the role of the liver in homeostasis.
Explain how sweating helps maintain homeostasis during exercise.
A patient has a body temperature of 39°C. Which homeostatic response is most likely to occur? (1) Vasoconstriction, (2) Sweating, (3) Shivering, (4) Increased metabolic rate
A patient has a body temperature of 39°C. Which homeostatic response is most likely to occur? (1) Vasoconstriction, (2) Sweating, (3) Shivering, (4) Increased metabolic rate
A person is exposed to a hot environment. Which of the following responses is most likely to occur to maintain homeostasis? (1) Vasoconstriction, (2) Shivering, (3) Sweating, (4) Increased appetite
Which hormone is released when blood glucose levels fall below normal? (1) Insulin, (2) Glucagon, (3) Adrenaline, (4) Thyroxine
Which of the following best defines homeostasis? (1) The process by which organisms maintain a stable internal environment, (2) The process of breaking down food for energy, (3) The process of cell division, (4) The process of responding to external stimuli
Fill in the blank: The ________ feedback mechanism enhances the original stimulus.
Fill in the blank: The ________ system is responsible for rapid communication and coordination of homeostatic responses.
Fill in the blank: The ________ system works closely with the nervous system to regulate homeostasis through hormones.
Fill in the blank: The maintenance of a constant internal environment is essential for the proper functioning of ________ enzymes.
True or False: Homeostatic mechanisms can only be found in animals.
True or False: Homeostatic mechanisms operate at both the cellular and organismal levels.
True or False: Negative feedback mechanisms are more common than positive feedback mechanisms in maintaining homeostasis.
True or False: The endocrine system is involved in long-term regulation of homeostasis.
