Homeostasis - Living Environment

Front

What is homeostasis?

Back

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

Front

Why do we shiver when it's cold?

Back

We shiver to increase body temperature by generating heat through muscle contractions.

Front

What organelle is responsible for releasing energy from food?

Back

Mitochondria are the organelles that release energy stored in food.

Front

What is the function of insulin in the body?

Back

Insulin helps glucose enter the cells of the body, regulating blood sugar levels.

Front

How does insulin lower blood glucose levels?

Back

Insulin promotes the uptake of glucose into cells through a transporter.

Front

What is a hormone?

Back

A hormone is a chemical made by cells that causes other cells to respond in a specific way.

Front

What role do enzymes play in the body?

Back

Enzymes are proteins that speed up chemical reactions in the body.

Front

What is the significance of feedback mechanisms in homeostasis?

Back

Feedback mechanisms help maintain homeostasis by regulating physiological processes, such as temperature and blood sugar levels.

Front

What is the difference between positive and negative feedback?

Back

Negative feedback reduces the output of a process to stabilize the system, while positive feedback enhances the output to amplify the process.

Front

How do the kidneys contribute to homeostasis?

Back

The kidneys help maintain homeostasis by regulating water balance, electrolytes, and waste removal.