Homeostasis: Practice Questions

In the human body, what is the primary role of receptors within an automatic control system?

Which statement correctly describes how Type 1 diabetes is typically treated?

Which statement correctly describes the deamination of amino acids in the liver (Higher Tier)?

In the human body, which of the following acts as a coordination centre within an automatic control system?

When body temperature is too low, the thermoregulatory centre triggers several responses. Which of the following is not a response to a decrease in core temperature?

Name one organ in the human body that acts as a coordination centre within an automatic control system.

Describe the sequence of information flow in an automatic control system, starting from the detection of a stimulus to the final response carried out by an effector.

Compare how Type 1 diabetes and Type 2 diabetes affect the body's ability to regulate blood glucose, and identify the primary risk factor associated with the development of Type 2 diabetes.

a) Define homeostasis and explain why it is important for the function of enzymes in the human body. (2 points)

b) The human body uses automatic control systems to maintain a constant internal environment. These systems include receptors, coordination centres, and effectors. Identify one example of a coordination centre in the human body and state its role in a control system. (2 points)

The human body maintains a constant internal environment through the process of homeostasis.

a) List three internal conditions that are controlled by the body to ensure enzymes and cells function at their optimum levels.

b) The pancreas is a coordination centre that monitors and controls blood glucose levels. Explain how the hormone glucagon interacts with insulin in a negative feedback cycle to control blood glucose levels when they become too low.