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 responds to a decrease in external temperature to maintain homeostasis.
Describe how the kidneys contribute to homeostasis.
Describe the function of receptors in a homeostatic system.
Describe the role of effectors in a homeostatic system.
Describe the role of insulin in homeostatic regulation of blood glucose.
Describe the role of the hypothalamus in homeostatic regulation.
Describe the sequence of events in a negative feedback loop.
Explain how sweating helps maintain homeostasis during exercise.
Which hormone is released when blood glucose levels fall below normal? (1) Insulin (2) Glucagon (3) Adrenaline (4) Thyroxine
Which of the following best describes a positive feedback mechanism? (1) Blood clotting (2) Blood glucose regulation (3) Thermoregulation (4) Osmoregulation
Which of the following is a chemical messenger involved in homeostasis? (1) Hemoglobin (2) Insulin (3) Myosin (4) Collagen
Which of the following is a homeostatic response to dehydration? (1) Increased urine output (2) Decreased thirst (3) Release of ADH (4) Sweating
The hormone ________ is released by the pituitary gland to regulate water balance in the body.
The hormone that increases the reabsorption of water in the kidneys is ________.
The maintenance of a constant body temperature in mammals is an example of ________.
The maintenance of a stable internal environment despite external changes is called ________.
True or False: Homeostatic imbalance can lead to disease.
True or False: Homeostatic mechanisms always involve hormones.
True or False: Homeostatic mechanisms can involve both the nervous and endocrine systems.
True or False: Negative feedback mechanisms work to counteract changes from a set point in the body.
