Homeostasis
Biology ⇒ Human Biology
Homeostasis starts at 8 and continues till grade 12.
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See sample questions for grade 8
A person drinks a large amount of water. What will the kidneys do to maintain homeostasis?
A person is sweating on a hot day. Which homeostatic process is taking place?
Describe the difference between negative and positive feedback in homeostasis.
Describe what happens to the body if homeostasis fails.
A person drinks a large amount of water. What will the kidneys do to maintain homeostasis?
A person is sweating on a hot day. Which homeostatic process is taking place?
A person has a disease that damages their pancreas so it cannot produce insulin. Predict what will happen to their blood glucose levels and explain why this is a problem for homeostasis.
A student runs a race and their body temperature rises. Describe two different physiological responses the body uses to bring the temperature back to normal, and explain how each response helps maintain homeostasis.
Which hormone is released by the pancreas to lower blood glucose levels? (1) Glucagon (2) Insulin (3) Adrenaline (4) Thyroxine
Which of the following best describes a positive feedback mechanism? (1) It reverses a change (2) It amplifies a change (3) It maintains a constant state (4) It has no effect
Which of the following is a correct definition of negative feedback? (1) A process that increases the original stimulus (2) A process that decreases the original stimulus (3) A process that has no effect (4) A process that is random
Which of the following is a correct example of homeostasis in plants? (1) Photosynthesis (2) Transpiration (3) Growth (4) Flowering
Fill in the blank: The __________ is the part of the brain that acts as the body’s thermostat.
Fill in the blank: The hormone __________ is released by the pancreas when blood sugar is too high.
Fill in the blank: The hormone __________ is released when blood sugar levels are too low.
Fill in the blank: The process by which the body maintains a stable pH in the blood is called __________ regulation.
True or False: Homeostasis helps organisms survive in changing environments.
True or False: Homeostasis only involves the nervous system.
True or False: Homeostasis only occurs in humans.
True or False: Negative feedback mechanisms work to reverse a change and bring the body back to normal.
