Quiz on Homeostasis

Which of the following is NOT a component of a feedback loop in homeostasis?

• Stimulus

• Sensor

• Response

• Photosynthesis

What is the primary function of sense organs in homeostasis?

• To interpret changes and initiate a response

• To detect changes

• To bring about the response

• To store information

Which organ breaks down glycogen and releases glucose in response to glucagon?

• Pancreas

• Kidney

• Liver

• Stomach

What happens to blood glucose levels when the liver breaks down glycogen and releases glucose?

• Blood glucose levels rise

• Blood glucose levels fall

• Blood glucose levels remain the same

• Blood glucose levels fluctuate

Which cells in the pancreas release insulin?

• Alpha cells

• Beta cells

• Delta cells

• Gamma cells

What is the role of the control center in the feedback mechanism?

• To detect the effects of the response

• To provide feedback to the sensory organs

• To regulate the response

• To ignore the response

Which of the following is a symptom of hyperglycaemia?

• Low blood sugar levels

• High blood sugar levels

• Low body temperature

• High body temperature

What is the primary function of homeostatic mechanisms?

• To cause diseases

• To maintain stable internal conditions

• To increase blood sugar levels

• To decrease body temperature

Which of the following conditions is NOT related to homeostatic mechanisms?

• Hyperglycaemia

• Hypoglycaemia

• Hyperthermia

• Bacterial infection

What is the main characteristic of a positive feedback loop?

• It tries to stop what is happening.

• It has no effect on the initial change.

• It continues what is happening like a chain reaction.

• It reduces the initial change.