Homeostasis
Biology ⇒ Human Biology
Homeostasis starts at 8 and continues till grade 12.
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See sample questions for grade 11
A person is running a marathon on a hot day. Explain how homeostasis is maintained in this situation.
Describe the effect of dehydration on homeostasis.
Describe the role of buffers in maintaining blood pH.
Describe the role of the skin in thermoregulation.
Describe what happens to blood vessels in the skin during vasodilation.
Describe what happens to the body when blood glucose levels fall below normal.
A person drinks a large amount of water. What hormone will be suppressed to maintain homeostasis? (1) Insulin (2) ADH (3) Glucagon (4) Thyroxine
A person is running a marathon on a hot day. Explain how homeostasis is maintained in this situation.
A person drinks a large amount of water. What hormone will be suppressed to maintain homeostasis? (1) Insulin (2) ADH (3) Glucagon (4) Thyroxine
Which hormone lowers blood glucose levels? (1) Glucagon (2) Insulin (3) Adrenaline (4) Cortisol
Which of the following best describes a receptor in a feedback system? (1) Detects changes (2) Carries out responses (3) Processes information (4) Produces hormones
Which of the following is a correct sequence in a negative feedback loop? (1) Effector → Receptor → Control center (2) Receptor → Control center → Effector (3) Control center → Effector → Receptor (4) Effector → Control center → Receptor
Fill in the blank: The __________ gland releases antidiuretic hormone (ADH) to regulate water balance.
Fill in the blank: The __________ is the part of the feedback system that carries out the response to restore balance.
Fill in the blank: The __________ system and the endocrine system work together to maintain homeostasis.
Fill in the blank: The hormone __________ is released when blood glucose levels are high.
True or False: Homeostasis can be disrupted by disease or injury.
True or False: Homeostasis only involves the nervous system.
True or False: Negative feedback mechanisms are the most common way the body maintains homeostasis.
True or False: Positive feedback mechanisms are more common than negative feedback mechanisms in the human body.
