Homeostasis Retake Ticket

Front

What is homeostasis?

Back

Homeostasis is the process by which living organisms maintain a stable internal environment despite changes in external conditions.

Front

What is the role of the effector in a feedback loop?

Back

The effector is the component that creates the change needed to restore balance in the body.

Front

What is the role of the receptor in a feedback loop?

Back

The receptor detects changes in the environment and sends this information to the control center.

Front

What is the control center in a feedback loop?

Back

The control center processes the information received from the receptor and determines the appropriate response.

Front

What is negative feedback?

Back

Negative feedback is a mechanism that reverses or discourages a change in a physiological variable, helping to maintain homeostasis.

Front

What is positive feedback?

Back

Positive feedback is a mechanism that encourages or strengthens a change in a physiological variable, often leading to a greater response.

Front

Give an example of negative feedback in the human body.

Back

An example of negative feedback is the regulation of body temperature; when the body temperature rises, mechanisms such as sweating are activated to cool it down.

Front

Give an example of positive feedback in the human body.

Back

An example of positive feedback is the process of childbirth, where the release of oxytocin increases contractions, leading to more oxytocin release.

Front

What is a set point in a feedback loop?

Back

The set point is the desired or optimal level of a physiological variable that the body aims to maintain.

Front

How does the body respond to a drop in blood glucose levels?

Back

The body responds by releasing glucagon from the pancreas, which stimulates the liver to release glucose into the bloodstream.