Practise MYP Biology questions on 4.9 Homeostasis and review the explanations to check your understanding.
Use these questions for topic practice and to find ideas you want to revisit in your notes or lessons.
True or False: Homeostasis maintains internal conditions at one absolute, unchanging value at all times regardless of activity.
When applying the homeostatic control model to the regulation of blood glucose, which of the following correctly distinguishes the roles of the pancreas and the liver?
Why does homeostasis regulate factors such as pH and temperature in addition to nutrient supply?
Which of the following structures acts as an effector during the process of thermoregulation when the body is too hot?
In the context of osmoregulation, which hormone is primarily responsible for signaling the kidneys to reabsorb more water back into the blood?
True
False
The liver acts as the receptor, while the pancreas acts as the effector.
The pancreas acts as the coordination centre, while the liver acts as an effector.
The pancreas acts as the stimulus, while the liver acts as the coordination centre.
Both the pancreas and the liver act as receptors that detect the same stimulus.
To prevent the cell membrane from dissolving
To ensure that glycogen can be stored in the nucleus
To maintain the optimal shape of enzyme active sites
To increase the rate of diffusion of waste products
The spinal cord
Temperature-sensitive neurons in the skin
The hypothalamus in the brain
Sweat glands
Adrenaline
Insulin
Glucagon
ADH
