Understanding Homeostasis and Feedback Mechanisms

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 a feedback mechanism?

Back

A feedback mechanism is a biological process that helps regulate and maintain homeostasis by responding to changes in the internal environment.

Front

What is negative feedback?

Back

Negative feedback is a control mechanism that counteracts a change in a system, helping to return it to its set point.

Front

What is positive feedback?

Back

Positive feedback is a process that amplifies a change or deviation from a set point, often leading to a greater response.

Front

How does sweating help maintain body temperature?

Back

Sweating cools the body down by evaporating moisture from the skin, which decreases body temperature.

Front

What is the role of insulin in the body?

Back

Insulin is a hormone that helps decrease blood sugar levels by facilitating the uptake of glucose into cells.

Front

What is the role of glucagon in the body?

Back

Glucagon is a hormone that increases blood sugar levels by promoting the release of glucose from the liver.

Front

What is an ectotherm?

Back

An ectotherm is an organism that relies on external environmental conditions to regulate its body temperature, such as reptiles.

Front

What is an endotherm?

Back

An endotherm is an organism that can regulate its body temperature internally, such as mammals and birds.

Front

What is the set point in homeostasis?

Back

The set point is the ideal value or range that the body tries to maintain for various physiological parameters.