Homeostasis & Cells Review

Front

What is homeostasis?

Back

Homeostasis is the organism's ability to maintain stable internal conditions despite changes in the external environment.

Front

What is a feedback loop?

Back

A feedback loop is a biological mechanism that helps regulate internal conditions by responding to changes.

Front

What happens if cooling mechanisms are not activated in the body?

Back

The body would not cool down.

Front

What is the purpose of a feedback loop in the body?

Back

To make sure the conditions in the body remain stable.

Front

What are lysosomes?

Back

Lysosomes are the 'garbage collectors' of the cell that remove waste.

Front

What is an example of a positive feedback mechanism?

Back

Childbirth is an example of a positive feedback mechanism, where contractions increase until delivery.

Front

What is the role of the cell membrane?

Back

The cell membrane controls what enters and exits the cell, maintaining homeostasis.

Front

What is negative feedback?

Back

Negative feedback is a process that counteracts a change, helping to return the system to its set point.

Front

What is an example of negative feedback in the human body?

Back

Regulation of body temperature is an example of negative feedback.

Front

What are centrioles?

Back

Centrioles are structures involved in cell division and help organize the mitotic spindle.